# Brookhaven National Laboratory

Site of the Brookhaven National Laboratory 2010: In the foreground the National Synchrotron Light Source II , which was then under construction , the Relativistic Heavy Ion Collider at the top right , in between several disconnected research facilities such as the Brookhaven Graphite Research Reactor and the High Flux Beam Reactor
(View to northwest)
Site plan of the large research facilities of the BNL. Plants marked in orange are in operation, in blue they are out of service.

The Brookhaven National Laboratory ( BNL ) is a national research center on Long Island in the US state of New York .

The laboratory was built in 1947 on the site of the former Camp Upton military base and has been continuously developed since then. The original umbrella organization of the BNL was the United States Atomic Energy Commission . Today it is operated and financed by its successor, the US Department of Energy . The laboratory employs around 3,000 permanent employees. In addition, around 4,500 guest researchers travel to the BNL every year.

Ever since it was founded, the BNL's research program has been strongly geared towards the operation and use of large-scale research facilities. In the 1950s and 1960s, several research reactors went into operation (including the Brookhaven Graphite Research Reactor and the High Flux Beam Reactor), in which, among other things, experiments in nuclear and materials research were carried out and radionuclides were produced for biological and medical research. During the same period, two proton accelerators for elementary particle physics (the Cosmotron and the Alternating Gradient Synchrotron ) were put into operation. In the 1970s the National Synchrotron Light Source was added, providing intense X-rays for a wide range of research areas and used by both BNL scientists and a growing group of external research groups; In the 1990s, beam lines for the infrared spectral range were also installed. After the shutdown of these facilities, the BNL now operates two major research facilities of international importance: the Relativistic Heavy Ion Collider (RHIC) for heavy ion and elementary particle physics and the National Synchrotron Light Source II (NSLS-II) as a source of synchrotron radiation for a variety of research areas.

A total of seven Nobel Prizes were awarded for discoveries directly related to the Brookhaven National Laboratory. These include the first observation of the J / ψ meson ( Physics Nobel Prize 1976), the discovery of the muon neutrino (Physics Nobel Prize 1988), the detection of cosmic neutrinos (Physics Nobel Prize 2002) and the elucidation of the structure and Function of the ribosome ( Nobel Prize in Chemistry 2009). Today, the research portfolio of the BNL ranges from basic research in physics, chemistry and biosciences to application-oriented issues in energy and environmental research.

## location

 Lake Ontario
 BNL
Location of the BNL in New York State.

The BNL is located in the east of Long Island , about 100 kilometers as the crow flies from the center of New York City . The BNL Complex covers a total of 21.3 square kilometers and is surrounded by the western foothills of the Long Island Central Pine Barrens, a wooded area covering approximately 425 square kilometers. The Interstate 495 from New York City runs two kilometers south of the BNL. Another three kilometers south is Brookhaven Airport, which is operated by Brookhaven County . Seven kilometers east of the laboratory is the exclusively privately used Calverton Executive Airpark. In addition, the laboratory is connected to the rail network through the New York and Atlantic Railway, founded in 1997 . The nearest cities are Patchogue, about 18 kilometers southwest and Riverhead about 19 kilometers east .

## history

### Foundation and early years

#### Conception and financing

The initiative to establish a national laboratory in the northeastern United States originally came from the physics Nobel Prize winner Isidor Isaac Rabi . Rabi was a professor at Columbia University in New York City in the 1930s . In the war years 1940-1945 he worked at the Radiation Laboratory of the Massachusetts Institute of Technology and took part in the Manhattan Project to develop the first nuclear weapons . In 1945 he returned to Columbia University. Many of his former colleagues had since left university and taken positions at other institutions in the United States. These included the Nobel Prize winners Enrico Fermi and Harold Urey , who had also worked on the Manhattan Project, but were then poached by the University of Chicago . Together with his colleague Norman Ramsey (who later also received the Nobel Prize in Physics), Rabi initially planned to build a research reactor at Columbia University in order to increase the attractiveness of the site for outstanding physicists. Since the resources required for this exceeded the capacity of Columbia University, nine universities established the Initiatory University Group (IUG) in March 1946 at the instigation of Rabi and Ramsey, which was to plan and initiate the establishment of a new laboratory on the east coast . The IUG's first chairman was Lee DuBridge , who headed the MIT Radiation Laboratory during World War II . To finance the laboratory, the IUG made an application to General Leslie Groves , the military director of the Manhattan Project, who at the time was still working as coordinator of the US nuclear weapons program. General Groves gave the IUG a funding commitment in March 1946. On January 1, 1947, the laboratory was established as a national laboratory under the name Brookhaven National Laboratory and, alongside the Argonne National Laboratory and the Clinton National Laboratory, was placed under the supervision of the newly created Atomic Energy Commission (AEC), the forerunner of today's Department of Energy . The temporary consortium of the nine founding universities was formally registered in New York State in 1947 under the name Associated Universities Incorporated (AUI for short).

#### Camp Upton

Panorama of Camp Upton from 1919.

There were a total of 17 suggestions for the location of the new laboratory, with most of them being US military bases . A committee led by Norman Ramsey was appointed to make the decision. The decisive criteria were the accessibility of the laboratory within one hour from the next train station, sufficient space for the large research facilities and a weak settlement of the surrounding area in order to minimize radiation damage within the population in the event of a reactor accident . The commission identified the already obsolete Camp Upton Army Base on Long Island near New York City as the only place that met all of these criteria. Camp Upton was completed in 1917 and served as a training camp for recruits from the US armed forces during World War I , who were briefed by French and British officers who had arrived. After the end of the First World War, the camp was closed for the time being, but reactivated with the entry of the United States into the Second World War. During the war, Camp Upton served as a hospital and prisoner of war camp , among other things , before it was completely closed in 1946. Based on the recommendation of the Ramsey Committee, the area of ​​Camp Upton was transferred to the AEC by the United States War Department on March 21, 1947 .

#### Research program

Following the initiative of Rabi and Ramsey, the BNL's initial research focus was on nuclear research. Due to the military importance of this branch of research, strict security reviews of all newly hired scientists initially made it difficult to recruit scientific staff. Additional complications arose from the confidentiality of research results required by the AEC. After lengthy negotiations between the AUI and the AEC, a compromise was reached on these matters: All research results should be publicly available, with the exception of some findings from nuclear physics, which had to be approved by the AEC before publication. People without a security certificate should have access to all buildings, except the reactor and the library where secret documents were kept. With these regulations, the BNL scientists, under the leadership of the first director Philip Morse, were able to achieve their goal of creating a university-like working atmosphere. The recruitment of scientists then progressed more rapidly, and by mid-1948 the BNL already had 1,500 employees.

Directors
Surname Period Life dates
Philip M. Morse 1947-1948 1903-1985
Leland J. Haworth 1948-1961 1904-1979
Maurice Goldhaber 1961-1973 1911-2011
George H. Vineyard 1973-1981 1920-1987
Nicholas P. Samios 1982-1997 * 1932
Lyle Schwartz (interim) 1997
Peter Bond (interim) 1997-1998
John H. Marburger 1998-2001 1941-2011
Peter Paul (interim) 2001-2003 1932-2017
Praveen Chaudhari 2003-2006 1937-2010
Samuel H. Aronson 2006–2012 * 1942
Doon Gibbs since 2012 * 1954

After the complete expansion in 1948, the BNL had six departments: Physics, Chemistry, Biology, Medicine, Engineering and Instrumentation. While the latter two departments dealt almost exclusively with the construction and operation of the research reactors and particle accelerators, the research program of the other departments concentrated mainly on nuclear physics , nuclear chemistry and radiation chemistry , often with the help of large research institutions. The biomedical research was initially relatively few resources. The plans of the first head of the medical department, William Sunderman , to set up a teaching hospital in the laboratory were not realized and Sunderman left the laboratory in 1948. The biology department also had great difficulties in starting a research program. In the course of the same year, however, the laboratory was able to hire Donald Van Slyke , a prominent scientist at Rockefeller University , first as a consultant, then as deputy head of the department. Van Slyke initiated a number of new research projects, in particular the application of radionuclides in biomedical research.

### Major historical research institutions

#### Research reactors

In front the High Flux Beam Reactor (HFBR), in the background the Brookhaven Graphite Research Reactor (BGRR).
Brookhaven Graphite Research Reactor (BGRR)
The BGRR was the first research reactor commissioned in the USA after World War II and the first major research facility at Brookhaven National Laboratory. The design was developed by a team of BNL physicists and engineers led by Lyle B. Borst . The reactor consisted of 11 ft (about 3.94 m) long fuel from natural uranium that of a graphite - Moderator were surrounded in the form of a cube with edge length 25 ft (about 7.6 m). The reactor was cooled by air which was sucked in through a gap in the center of the graphite block and sucked out through the fuel channel. The maximum output was 32 MW, in normal operation the output was 20 MW. A total of 61 beam holes were made on two sides of the reactor, which provided neutrons for a variety of experiments in various research areas. Construction of the reactor began on August 11, 1947 and commissioning took place on August 22, 1950. The reactor was shut down in 1969. The dismantling began in 1999 and was completed in 2012.
The Brookhaven Medical Research Reactor (BMRR) around 1960.
Brookhaven Medical Research Reactor (BMRR)
Like the BGRR, the BMRR was a graphite-moderated natural uranium reactor and the first research reactor that was specifically built for medical applications. The output in normal operation was 3 MW. The main areas of application were the production of short-lived radionuclides and boron neutron capture therapy (BNCT). The reactor was in operation from 1959 to 2000.
High Flux Beam Reactor (HFBR)
The HFBR was designed by a BNL team led by Joseph Hendrie with the aim of significantly increasing the neutron flux compared to the BGRR. Construction began in the fall of 1961 and the reactor went into operation on October 31, 1965. The 53 cm high, 48 cm wide reactor core consisted of 28 fuel elements made of highly enriched uranium with a total weight of 9.8 kg. Moderation and cooling took place with heavy water . The reactor core as well as cooling and control devices were located in a steel tank. The reactor building with all measuring devices was a hemisphere with a diameter of 53.6 m.
The reactor was initially operated with an output of 40 MW, until the heat exchangers were modernized in 1982 and the output increased to 60 MW. The thermal neutron flux was at a maximum about 30 cm from the center of the core. The openings of a total of nine horizontal nozzles were placed there. Eight of these beam tubes were designed for thermal neutrons and were aligned tangentially to the center of the core, so that the flow of fast neutrons and thus the beam background for the experiments carried out there were minimized. Another beam tube delivered high-energy neutrons for nuclear physics experiments through its radial alignment. A total of 15 measuring instruments were attached to the beam pipes, which were mainly used for nuclear and solid-state physics experiments. A cold moderator made of 1.4 l hydrogen , which went into operation in 1980, was also attached to one of the tangential jet pipes . In addition to the horizontal radiant tubes, there were seven vertical tubes with irradiation devices.
In April 1989 the reactor was shut down due to an extensive safety check and started up again in May 1991 with a reduced output of 30 MW. During a routine investigation in 1996, a small amount of tritium was found in the groundwater near the reactor building, which was attributed to a leak in the spent fuel pool. This incident initially led to a further shutdown and in 1999 to the final shutdown of the HFBR.

#### Particle accelerator

The Cosmotron's storage ring at Brookhaven National Laboratory.
Cosmotron
The Cosmotron was a proton accelerator commissioned in 1951 with a diameter of 23 meters, which was originally designed to simulate some of the properties of cosmic rays . In 1952 it reached a proton energy of 1 GeV , making it the first accelerator to exceed this energy threshold. It reached its full power with 3.3 GeV in January 1953 and was at that time the accelerator with the world's highest proton energy. In 1966, operations at the Cosmotron were discontinued in favor of the more modern and more powerful Alternating Gradient Synchrotron , which had been commissioned six years earlier.
The area of ​​the Alternating Gradient Synchrotron.
The AGS is based on the principle of changing magnetic field gradients, through which the size and thus also the costs of the electromagnets in the storage ring could be limited. The proton accelerator was put into operation in 1960 and at the end of July 1960 reached its predicted proton energy of 33 GeV. The AGS has a diameter of 843 ft (approx. 257 m) and accelerates not only protons but also heavy ions . In addition to the AGS, the AGS accelerator complex also includes a tandem Van De Graaff accelerator consisting of two 15 MeV electrostatic accelerators, a booster, a synchrotron completed in 1991, and the Brookhaven Linear Accelerator (LINAC for short), a 1971 in 200 MeV linear accelerator in operation . The AGS has been integrated into the Relativistic Heavy Ion Collider as a pre-accelerator since 2000.

The National Synchrotron Light Source (NSLS) consisted of two electron storage rings : the so-called vacuum ultraviolet (VUV) ring with around 20 beam lines and a ring for generating hard X-rays (X-ray ring) with around 60 beam lines. The circumference of the VUV ring was 51 m, that of the X-Ray ring 170 m. The VUV ring and the X-Ray ring were commissioned in 1982 and 1984, respectively, and construction was completed in 1984 and 1986, respectively. Construction costs were approximately $160 million. Aerial view of the National Synchrotron Light Source. The electrons were brought to an energy of 120 MeV in a linear accelerator , then accelerated to 750 MeV in a booster and then fed into the VUV or X-Ray ring, where they are reduced to their final energy of 750 MeV or 2, 5-GeV were accelerated. To focus the electron beam in the storage rings and to maximize the radiation intensity , the BNL physicists Renate Chasman and George Kenneth Green designed a regular arrangement of dipole and quadrupole magnets , which is now known as the “ Chasman Green Lattice ” or “Double Bend Achromat (DBA ) Lattice "is known and used in many synchrotron sources. Because of this design, the NSLS has long been the most intense synchrotron X-ray source in the world. The wavelength of the synchrotron radiation ranged from 0.1 to 30 Å . The beamlines were operated either by BNL scientists (“Facility Beamlines”) or by external institutions (“Participating Research Teams”), who made 50 or 25 percent of the beam time available to external users via an application system. The measuring methods practiced at the NSLS were very diverse and ranged from X-ray absorption spectroscopy to high-resolution crystallography . Over 2000 scientists visited the facility annually. In 2014 the NSLS was switched off and replaced by the more powerful NSLS-II. ### Historical research priorities and research results #### Solid state research Magnetic neutron scattering At the Brookhaven Graphite Research Reactor, Harry Palevsky and Donald Hughes observed for the first time inelastic magnetic neutron scattering from ferromagnets . Léon van Hove , then a visiting scientist at the BNL, then developed a formalism that establishes a connection between the cross-section of magnetic neutron scattering and the spin-spin correlation functions. The van-Hove formalism is now an integral part of solid-state research with neutrons. Crystallography with neutrons In the 1960s, a working group led by Walter Hamilton used a neutron diffractometer on the High Flux Beam Reactor to determine the structure of a large number of solids, including many complex molecular crystals . For this purpose, Hamilton developed mathematical methods for analyzing crystallographic data, some of which are still in use today. Soft lattice vibrations In 1970, Gen Shirane and co-workers discovered low-energy (“soft”) lattice vibrations in the vicinity of ferroelectric phase transitions through measurements on a neutron three-axis spectrometer . This phenomenon, for the discovery of which Shirane received the Oliver E. Buckley Prize in 1973 , is an important element in the theoretical understanding of ferroelectricity and other structural phase transitions. One and two dimensional magnetism In the 1970s, Robert Birgeneau (then at the Massachusetts Institute of Technology ) and colleagues showed that theories about the structure and dynamics of one- and two-dimensional magnets can be precisely checked by neutron experiments on complex metal oxides and organometallic compounds. For this and similar work, Birgeneau was awarded the Oliver E. Buckley Prize in 1987. Magnetism in high temperature superconductors Shortly after Georg Bednorz and Karl A. Müller discovered high-temperature superconductivity in copper oxides , Birgeneau, Shirane and BNL physicist John Tranquada discovered unusual magnetic order phenomena and stimuli in these materials through neutron scattering experiments at the HFBR. Motivated by these discoveries, models were developed according to which high-temperature superconductivity is caused by a magnetic mechanism. Resonant magnetic X-ray scattering In experiments at the NSLS, the BNL physicist Doon Gibbs (BNL Director from 2012) discovered the resonant scattering of synchrotron X-rays on magnetically ordered holmium . For this discovery and for theoretical work to explain this phenomenon, he received the APSUO Arthur H. Compton Award in 2003 together with the BNL physicists Martin Blume and Dennis McWhan and Kazumichi Namikawa ( University of Tokyo ) . #### Nuclear and elementary particle physics Neutron cross sections In the 1950s, a working group headed by Donald J. Hughes developed various neutron-optical components as well as the method of neutron time-of-flight spectrometry for measuring the energy-dependent absorption and scattering cross-sections of neutrons and compiled these in detailed tables, both in the core - as well as in solid state physics gained great importance. Weak interaction parity violation In 1956, Tsung-Dao Lee ( Columbia University ) and Chen Ning Yang (then a physicist at the BNL) hypothesized, based on experimental observations at the Cosmotron accelerator, that the parity quantum number is not retained in the case of particle decays that are mediated by the weak interaction . This hypothesis was later confirmed by the Wu experiment . For their theoretical work, Lee and Yang were awarded the Nobel Prize in Physics in 1957 . Helicity of neutrinos In a study of the decay of metastable atomic nuclei (known today as the “ Goldhaber experiment ”), a working group led by Maurice Goldhaber first demonstrated the helicity of neutrinos in 1957 . They described neutrinos as “left-handed”, so the helicity is negative. CP violation In 1964, James Cronin and Val L. Fitch (then both at Princeton University ) carried out experiments on the decay of kaons at the Alternating Gradient Synchrotron and discovered a violation of the CP symmetry, which contains a fundamental asymmetry between matter and antimatter . For this discovery they received the Nobel Prize in Physics in 1980. Discovery of the muon neutrino The elementary particles of the Standard Model. In the bottom line is the muon neutrino, which was discovered at the AGS. In the top line the charm quark , part of the J / ψ meson also discovered at the AGS. Shortly after the AGS was put into operation, Leon Lederman , Melvin Schwartz and Jack Steinberger (then at Columbia University) and their colleagues there discovered the muon neutrino in 1962 when they observed the decay of high-energy pions into muons and neutrinos. The muon neutrino was the first elementary particle of its kind to be observed experimentally after the electron neutrino, which was already known from the beta decay of atomic nuclei. Its discovery established the classification of leptons into "generations", which today is an essential part of the Standard Model . Lederman, Schwartz and Steinberger received the Nobel Prize in Physics for this in 1988. Solar and cosmic neutrinos Raymond Davis Jr. (from 1948 to 1984 scientist at the BNL) developed methods for the detection of neutrinos at the Brookhaven Graphite Research Reactor, which he later used in an underground neutrino detector in the Homestake gold mine. There he carried out measurements of the flow of the (“solar”) neutrinos emitted by the sun, and in 1968 he determined for the first time that it was significantly lower than predicted by models of energy generation in the sun. These investigations established the so-called solar neutrino problem, which was only solved much later by the discovery of neutrino oscillations. Davis received the 2002 Nobel Prize in Physics for his work on solar neutrinos. Discovery of the J / ψ particle In an experiment with high-energy proton beams at the AGS, a research group led by Samuel CC Ting (Massachusetts Institute of Technology) discovered a new long-lived meson they named "J" in 1974. Since the same meson was observed at almost the same time by Burton Richter and colleagues at the Stanford Synchrotron Radiation Laboratory and called "ψ", it is now called "J / ψ". A little later, the J / ψ turned out to be a bound state of a charm and an anti-charm quark, and its discovery thus confirmed theoretical predictions of these elementary particles. Just two years after the discovery, Ting and Richter received the Nobel Prize in Physics for this. Quark-Gluon Plasma Inside view of the STAR detector at RHIC. Experiments carried out there provided evidence of the quark-gluon plasma. From collisions of high-energy gold ions at the Relativistic Heavy Ion Collider, the operators of four different detectors received numerous indications of the formation of a theoretically predicted state of matter in which quarks and gluons are not subject to confinement as in atomic nuclei . These notes were first summarized in 2005. #### Biology and medicine Parkinson's disease treatment In 1968, developed George Cotzias (scientists at BNL Medical Center) and his staff, the dopamine - isomer L-dopa and implement it successfully for the treatment of Parkinson's disease one. L-Dopa is still considered one of the most effective Parkinson 's drugs today . Structure of ion channels The elucidation of the atomic structure of ion channels enabled a detailed mechanistic understanding of ion transport through cell membranes in the late 1990s and early 2000s. Roderick MacKinnon ( Rockefeller University ) and colleagues received high-resolution X-ray structural data of closed and open K + ion channels, some of them at the NSLS. For this MacKinnon was awarded the Nobel Prize in Chemistry in 2003 (together with Peter Agre , Johns Hopkins University ). Structure of ribosomes The elucidation of the structure of the 30S and 50S subunits of ribosomes was partly or almost completely based on crystallographic data obtained at the NSLS. For this achievement, Venkatraman Ramakrishnan (Medical Research Council Laboratory of Molecular Biology in Cambridge, UK) and Thomas A. Steitz ( Yale University ) together with Ada E. Yonath ( Weizmann Institute ) received the Nobel Prize in Chemistry 2009. #### technology Technetium 99m generator The first technetium 99m generator at the BNL (without radiation shielding ) in 1958. The illustration shows the elution of 99m Tc from the generator, which contains the mother nuclide 99 Mo. In the course of experiments on the production of radioisotopes at the BGRR, the BNL physicist Walter Tucker and colleagues developed a process for generating the short-lived isotope 99m Tc , which is used for medical imaging, from long-lived 99 Mo , which is transported over longer distances and to hospitals can be delivered. The Technetium 99m generator is still widely used today. The "Tennis For Two" oscilloscope. Tennis for Two In 1958, William Higinbotham , then head of the instrumentation department at BNL, developed the computer game Tennis for Two , which is considered to be the first video game. The game was played on an oscilloscope connected to an analog computer . The oscilloscope screen showed a side view of a tennis court with a net. The players could hit a ball (point of light with trace) over the net by turning a button and pressing a button. The video game Pong represents a further development of this game concept. MagLev technology In 1968, BNL scientists Gordon Danby and James Powell patented a maglev technology known today as "MagLev" , in which static (preferably superconducting) magnets are mounted on the vehicle and controlled by currents in the rails. For this invention, Danby and Powell received the Benjamin Franklin Medal in 2000 . Nobel prizes for research results achieved at the BNL year Nobel Prize Winner subject area Reason for awarding the prize Role of the BNL 1957 Tsung-Dao Lee & Chen Ning Yang physics "For her fundamental research on the laws of so-called parity , which led to important discoveries about elementary particles " Yang was employed at the BNL in 1957, together with Lee he interpreted experiments carried out in their work at the BNL. 1976 Samuel Chao Chung Ting & Burton Judges physics “For their leading achievements in the discovery of a new type of heavy elementary particle”, the J / ψ meson The key experiment was carried out in 1974 at the BNL's Alternating Gradient Synchrotron. 1980 James W. Cronin & Val L. Fitch physics "For the discovery of violations of fundamental symmetry principles in the decay of neutral K mesons ", the CP violation The key experiment was carried out in 1963 at the BNL's Alternating Gradient Synchrotron. 1988 Leon Lederman , Melvin Schwartz & Jack Steinberger physics "For the neutrino beam method and the demonstration of the doublet structure of the leptons through the discovery of the muon neutrino" The key experiment was carried out in 1962 at the BNL's Alternating Gradient Synchrotron. 2002 Raymond Davis Jr. & Masatoshi Koshiba ; Riccardo Giacconi physics "For groundbreaking work in astrophysics, especially for the detection of cosmic neutrinos" Davis Jr., who shared the Nobel Prize with Koshiba for this very discovery, was employed by the BNL at the time. Giacconi, on the other hand, received the Nobel Prize for a separate finding. 2003 Roderick MacKinnon ; Peter Agre chemistry "For the discovery of the water channels in cell membranes " MacKinnon, who was visiting researcher at the BNL at the time, received the Nobel Prize for this very discovery. Agre, on the other hand, received the Nobel Prize for a separate finding. 2009 Venkatraman Ramakrishnan , Thomas A. Steitz & Ada E. Yonath chemistry "For the studies of the structure and function of the ribosome" Ramakrishnan and Steitz carried out important experiments at the NSLS of the BNL. ## organization The laboratory is one of ten major US government-run laboratories and is overseen and almost entirely funded by the United States Department of Energy . The budget of the BNL in 2017 was around 582 million US dollars (around 521 million euros). The laboratory is run by a director and two deputy directors who are responsible for research and administration of the laboratory. Acting Director Doon Gibbs was appointed Interim Director in December 2012 and Laboratory Director in 2013. The laboratory employs around 3,000 permanent employees. Every year around 4500 users visit the laboratory's large research facilities. The laboratory is divided into a total of eight directorates, each headed by an Associate Laboratory Director (ALD). The directorates are subdivided into departments (departments or divisions for larger or smaller organizational units); the department heads report to the respective ALD. In the research departments, the lowest organizational level consists of research groups, usually with a senior scientist as group leader. Another element of the organization are staff units that are directly assigned to the laboratory director. These include the planning office, the legal department, internal auditing and counter-espionage. Directorates of the BNL Directorate ALD Departments / Divisions / Offices Computational Science Initiative Kerstin Kleese van Dam Computer Science and Mathematics, Computing for National Security, Scientific Data and Computing Center, Center for Data-Driven Discovery, Computational Science Laboratory Nuclear and Particle Physics Berndt Mueller Colliders & Accelerators (including NASA Space Radiation Laboratory), Physics, Instrumentation, Superconducting Magnets Energy and Photon Sciences James Misewich Chemistry, Condensed Matter Physics and Materials Sciences, Sustainable Energy Technologies Environment, Biology, Nuclear Science & Nonproliferation Martin Schoonen Biology, Environmental and Climate Sciences, Nonproliferation and National Security Business services George Clark Budget, Fiscal Services, Procurement and Property Management, Information Technology Facilities & Operations Tom Daniels Laboratory Protection, Modernization Project, Production, Energy and Utilities Environment, Safety & Health Steven Coleman Environmental Protection, Radiological Control, Safety and Health Services Human Resources Robert Lincoln Guest, User and Visitor Center, Diversity and International Services, Benefits, Labor Relations, Talent Management, Compensation and HRIS, Occupational Medicine ## Large research institutions ### Relativistic Heavy Ion Collider The two rings of the RHIC double storage ring. The Relativistic Heavy Ion Collider is the world's first particle accelerator that can store, accelerate and collide spin-polarized protons. At the RHIC, heavy ions and spin-polarized protons circulate through a double storage ring (consisting of two independent storage rings running in parallel) that is around 3834 meters in circumference and is hexagonal in shape. There, with the aid of 1740 superconducting from titanium - niobium -made alloys dipole magnet the field strength of 3.45 Tesla deflected particles stored or focused. The AGS complex as a pre-accelerator of the RHIC. In experiments on quark-gluon plasma , ions of high mass are accelerated to 99.995 percent of the speed of light by three pre-accelerators (the Electron Beam Ion Source Accelerator, a booster and the Alternating Gradient Synchrotron) and then fed into one of the RHIC storage rings. The ions then move in opposite directions in the two RHIC storage rings and can collide at a point of intersection. The center of gravity energy in gold-gold collisions is currently 200 GeV. The resulting high energy heats the nuclei to a temperature of up to 4 trillion Kelvin , which means that conditions immediately after the Big Bang can be simulated. From the nature of the decay one can get new knowledge about these conditions. When the heavy ions collide, the quarks and gluons are released from the strong bond in the protons and can move freely through the extremely hot colliding atomic nuclei . This creates the quark-gluon plasma, which is still being researched intensively at RHIC today. The extremely high temperature and density matter created during such collisions only lasts for about 10 −22 seconds. RHIC was the first and for a long time the only accelerator on which the quark-gluon plasma could be observed. However, such measurements are now also possible at the Large Hadron Collider at the CERN research center . For the experiments with spin-polarized protons, the unpolarized proton primary beam picks up spin-polarized electrons when passing through an optically pumped Rb gas cell. The spin polarization of the electrons is transferred to the protons through the hyperfine interaction , and the electrons are removed again when they pass through a Na gas cell. The spin-polarized protons are first pre-accelerated in the LINAC and then - similar to the heavy ions - accelerated to their final energy in the booster and in the AGS. The experiments are intended to determine the contributions of quark and gluon spins and their orbital movement to the total spin of the proton. The center of mass energy in proton-proton collisions is currently 200 GeV. Before RHIC went into operation, there were fears that the high collision energies could lead to the formation of black holes , which, however, were initially refuted by Nobel laureate in physics, Frank Wilczek , and then by a committee convened by the then BNL director John Marburger. One of the arguments put forward is based on the fact that the moon has been constantly hit by cosmic rays since its formation , which have a much higher energy than the heavy ions in RHIC, without a black hole having formed. ### Electron Ion Collider In January 2020, the Department of Energy announced that the Electron Ion Collider (EIC) would be built at Brookhaven National Laboratory. In the EIC, electrons and ions from separate accelerators are to be brought together to form high-energy collisions. Current plans include using one of the two RHIC storage rings to accelerate the ions. ### National Synchrotron Light Source II Aerial photo of the electron storage ring of the NSLS-II. Planning for a new synchrotron to replace and further develop the NSLS that was shut down in 2014 began in 2005. Construction of the National Synchrotron Light Source II (NSLS-II) began four years later and was completed in 2015. The electron energy in the storage ring is 3.0 GeV. The construction of the NSLS-II is based on a DBA Lattice, like the NSLS. The circumference of the ring is, however, almost five times larger at 792 meters. The energy of the emitted photons ranges from approx. 0.1 to 300 keV. By using optimized wigglers and undulators , synchrotron radiation is generated with a flux density of over 10 15 photons per second times square meter in all spectral ranges , i.e. the flux density is approx. 10,000 times higher than that of the NSLS and comparable to other synchrotrons of the third generation, such as for example PETRA-III at the DESY research center in Hamburg and the European Synchrotron Radiation Facility (ESRF) in Grenoble . A spatial resolution of approx. 1 nm, a spectral resolution of 0.1 meV and the measurement sensitivity of a single atom were specified as the performance goals of the NSLS-II. The cost to build the facility was approximately$ 912 million.

The system currently has a total of 28 beam lines, and another beam line is under construction. A total of 58 active beam lines are targeted at the end of construction. Access for external users is granted via an application system. In 2018, 1,300 scientists carried out experiments at the NSLS-II.

### Center for Functional Nanomaterials

The building of the Center for Functional Nanomaterials.

The CFN was founded in 2009 and is currently one of five Nanoscale Science and Engineering Centers that are centrally funded by the Department of Energy and conduct research and development in the nanosciences . Research at CFN focuses on catalysis , fuel cells and photovoltaics . The CFN provides several research facilities for external scientists. These include clean rooms for nanostructuring processes on a total area of ​​approx. 500 m², synthesis laboratories for organic and inorganic nanomaterials , spectrometers for X-ray absorption and emission spectroscopy , electron and tunnel microscopes , and a computer infrastructure for the numerical calculation of material properties. The approval of measurement and computing time at these facilities is made through an application system. In 2018, 581 scientists used the CFN.

### Scientific Data and Computing Center

The high-performance data center at the BNL originally goes back to the "RHIC & ATLAS Computing Facility" (RACF), which was founded in 1997 to support experiments at RHIC and the ATLAS detector of the Large Hadron Collider at CERN . Data from particle collisions were stored in the RACF computers, analyzed and then distributed to the members of the respective detector consortia for further analysis. The computer infrastructure was continuously expanded in the following years, and the fields of application were expanded to include biology, medicine, materials and energy research and climate modeling. In particular, the “New York Blue / L” supercomputer went into operation in 2007 and the “New York Blue / P” in 2009, both of which belong to the Blue Gene series from IBM . A “Blue Gene Q” class computer was added in 2011, and the older “New York Blue” computers were switched off in 2014 and 2015, respectively.

## Current research program

The current focal points of the research departments are strongly aligned with the large research institutions at the BNL. In high-energy and astrophysics, BNL scientists also coordinate several large experiments at external research centers. In addition to the large research facilities, the research departments have extensive molecular biological laboratories as well as material synthesis and characterization facilities.

The BNL has defined the following strategic research priorities:

### QCD matter

Theoretically predicted phase diagram of the quark-gluon plasma as a function of the chemical potential of the quarks on the x-axis and the temperature on the y-axis. CFL stands for the Color-Flavor-Locked-Phase.

One focus of basic research at the BNL is the physics of quarks and gluons , which is described by quantum chromodynamics (QCD). By analyzing data from high-energy collisions of heavy ions at RHIC, BNL scientists gain information about the hydrodynamic properties of the quark-gluon plasma and its phase diagram , including the phase transition to normal matter in analogy to the early universe. In other current research work, anti- nucleons and their interactions are investigated at the BNL .

### Physics of the Universe

This topic includes the major astrophysical projects in which BNL physicists are involved, in particular the Large Synoptic Survey Telescope for imaging the entire visible southern sky and the BOSS collaboration ( Baryon Oscillation Spectroscopic Survey) for determining the distribution of dark energy in the universe . Furthermore, the BNL participation in the Daya Bay experiment on neutrino oscillations and the ATLAS detector at the LHC to investigate the Higgs boson are assigned to this research focus.

### Research with photons

The development of photon-based methods for the elucidation of material structures is a cross-departmental research focus of the BNL. For this purpose, a number of BNL research groups operate beam lines at the NSLS-II. The research spectrum ranges from investigations into protein structure in the biosciences to imaging methods for electronic materials and components in solid-state research. In addition, time-resolved and spatially resolved methods for in-situ investigations are being developed in energy and environmental research .

### Climate, environmental and life sciences

A diverse, strongly interdisciplinary research focus of the BNL aims to understand the interplay between climate change , the earth's ecosystems and possible initiatives for sustainable energy supply, as well as to develop strategies to curb global warming and to adapt to climatic changes. To this end, BNL researchers collect quantitative data on greenhouse gas emissions, optimize climate models and develop new biofuels .

### Energy security

The main goals of this research focus are new methods of generating, transporting, storing and using energy. The research activities in this field range from basic research on chemical energy conversion, catalysis and superconductivity to the integration of renewable energies into the power grid.

Commons : Brookhaven National Laboratory  - Album containing pictures, videos and audio files

1. Brookhaven National Laboratory (Ed.): Environmental Assessment for Alternating Gradient Synchrotron Complex, Upgrades for Continued Operation . Upton, New York March 2016, pp. 17 ( energy.gov [PDF; 1.4 MB ; accessed on August 9, 2019]).
2. Overview | Central Pine Barrens Joint Planning and Policy Commission. In: pb.state.ny.us. Retrieved August 9, 2019 (after converting the stated area from acres to square kilometers).
3. Robert P. Crease: Making Physics - A Biography of Brookhaven National Laboratory, 1946–1972 . University of Chicago Press, Chicago 1999, ISBN 978-0-226-12019-5 , pp. 9-12 .
4. Specifically, the following universities on the east coast of the United States were involved: Columbia University , Cornell University , Harvard University , Johns Hopkins University , MIT , the University of Pennsylvania , Princeton University and the University of Rochester and the Yale University . See: John S. Rigden: Rabi - Scientist & Citizen . Harvard University Press, New York 1987, p. 185.
5. ^ Robert P. Crease: Making Physics - A Biography of Brookhaven National Laboratory, 1946-1972 . University of Chicago Press, Chicago 1999, ISBN 978-0-226-12019-5 , pp. 16-17 .
6. 1948 renamed " Oak Ridge National Laboratory ". See: Leland Johnson & Daniel Schaffer: Oak Ridge National Laboratory Review - Volume 25. (PDF, 1992), p. 2.
7. ^ Robert P. Crease: Making Physics - A Biography of Brookhaven National Laboratory, 1946-1972 . University of Chicago Press, Chicago 1999, ISBN 978-0-226-12019-5 , pp. 44-46 .
8. ^ Robert P. Crease: Making Physics - A Biography of Brookhaven National Laboratory, 1946-1972 . University of Chicago Press, Chicago 1999, ISBN 978-0-226-12019-5 , pp. 22-39 .
9. ^ History: Camp Upton. In: bnl.gov. Brookhaven National Laboratory, accessed March 23, 2019 .
10. Wendy Polhemus-Annibell: Camp Upton, World War II. In: Long Island Pulse Magazine. July 27, 2015, accessed May 26, 2019 .
11. ^ BNL Celebrates 60 Years of Discovery, 1947-2007. In: bnl.gov. Brookhaven National Laboratory, accessed March 23, 2019 .
12. ^ Robert P. Crease: Making Physics - A Biography of Brookhaven National Laboratory, 1946-1972 . University of Chicago Press, Chicago 1999, ISBN 978-0-226-12019-5 , pp. 49-54 .
13. ^ Robert P. Crease: Making Physics - A Biography of Brookhaven National Laboratory, 1946-1972 . University of Chicago Press, Chicago 1999, ISBN 978-0-226-12019-5 , pp. 66 .
14. ^ Brookhaven National Laboratory Progress Report. January 1 - June 30, 1949. Upton, New York 1949, pp. 43 ( bnl.gov [PDF; accessed March 23, 2019]).
15. ^ Brookhaven National Laboratory. Annual Report, July 1, 1950 . Upton, New York 1950, pp. 55 ( bnl.gov [PDF; accessed March 23, 2019]).
16. ^ Robert P. Crease: Making Physics - A Biography of Brookhaven National Laboratory, 1946-1972 . University of Chicago Press, Chicago 1999, ISBN 978-0-226-12019-5 , pp. 63-65 .
17. ^ Robert P. Crease: Making Physics - A Biography of Brookhaven National Laboratory, 1946-1972 . University of Chicago Press, Chicago 1999, ISBN 978-0-226-12019-5 , pp. 69-92 .
18. ^ Robert P. Crease: Making Physics - A Biography of Brookhaven National Laboratory, 1946-1972 . University of Chicago Press, Chicago 1999, ISBN 978-0-226-12019-5 , pp. 323 .
19. Brookhaven Graphite Research Reactor | Environmental Restoration Projects | BNL. In: bnl.gov. Brookhaven National Laboratory, accessed April 23, 2019 .
20. ^ Robert P. Crease: Making Physics - A Biography of Brookhaven National Laboratory, 1946-1972 . University of Chicago Press, Chicago 1999, ISBN 978-0-226-12019-5 , pp. 188-189 .
21. ^ Lee E. Farr: The Brookhaven Medical Research Reactor . In: Science . tape 130 , no. 3382 , 1959, ISSN  0036-8075 , pp. 1067-1071 , JSTOR : 1758107 .
22. ^ Joe Gettler: Brookhaven Lab Completes Decommissioning of Brookhaven Graphite Research Reactor. In: bnl.gov. Brookhaven National Laboratory, September 17, 2012, accessed April 23, 2019 .
23. ^ A b Stephen M. Shapiro: The High Flux Beam Reactor at Brookhaven National Laboratory . In: Materials Research Society (Ed.): Neutron Scattering in Materials Science II . tape 376 , 1995, pp. 71-80 ( iaea.org [PDF]).
24. Irwin Goodwin: DOE Shuts Brookhaven Lab's HFBR in a Triumph of Politics Over Science . In: Physics Today . tape 53 , no. 1 , January 2000, ISSN  0031-9228 , p. 44–45 , doi : 10.1063 / 1.882937 ( scitation.org [accessed April 28, 2019]).
25. ^ High Flux Beam Reactor | Environmental Restoration Projects | BNL. In: bnl.gov. Brookhaven National Laboratory, accessed April 28, 2019 .
26. Lexicon of Physics - Cosmotron. In: Spectrum of Science . Retrieved May 26, 2019 .
27. ^ A b Our History: Accelerators. In: bnl.gov. Brookhaven National Laboratory, accessed May 26, 2019 .
28. Alternating Gradient Synchrotron Complex - Home to a Scientific Workhorse. (PDF) In: bnl.gov. Brookhaven National Laboratory, January 2011, accessed May 26, 2019 .
29. Tandem Van de Graaff | Home. In: bnl.gov. Brookhaven National Laboratory, accessed May 26, 2019 .
30. RHIC | Synchrotron booster. In: bnl.gov. Brookhaven National Laboratory, accessed May 26, 2019 .
31. JG Alessi, JM Brennan, A. Kponou, V. LoDestro, PA Montemurro: The BNL 200 MeV H - LINAC - Performance And Upgrades. Subchapter in: Proceedings of the 1990 linear accelerator conference. United States, 1991. page 674. (American English)
32. a b c RHIC | Accelerator Complex. In: bnl.gov. Brookhaven National Laboratory, accessed June 1, 2019 .
33. Lingyun Yang, B. Podobedov, SL Kramer, SY Lee: NSLS VUV ring lifetime study . In: 2007 IEEE Particle Accelerator Conference (PAC) . June 2007, p. 1203–1205 , doi : 10.1109 / PAC.2007.4441030 ( ieee.org [accessed July 28, 2019]).
34. a b What is a synchrotron. (No longer available online.) In: bnl.gov. Brookhaven National Laboratory, archived from the original on March 21, 2012 ; accessed on June 2, 2019 .
35. ^ R. Chasman, GK Green, EM Rowe: Preliminary Design of a Dedicated Synchrotron Radiation Facility . In: IEEE Transactions on Nuclear Science . tape 22 , no. 3 , June 1975, ISSN  0018-9499 , pp. 1765–1767 , doi : 10.1109 / TNS.1975.4327987 ( ieee.org [accessed June 2, 2019]).
36. ^ Photon Sciences | NSLS 30th Anniversary. In: bnl.gov. Brookhaven National Laboratory, 2007, accessed June 2, 2019 .
37. ^ S. Krinsky, L. Blumberg, J. Bittner, J. Galayda, R. Heese: Design Status of the 2.5 GeV National Synchrotron Light Source X-Ray Ring . In: IEEE Transactions on Nuclear Science . tape 26 , no. 3 , June 1979, ISSN  0018-9499 , pp. 3806-3808 , doi : 10.1109 / TNS.1979.4330615 ( ieee.org [accessed June 2, 2019]).
38. ^ Mona S. Rowe: Last Light at NSLS. In: bnl.gov. Brookhaven National Laboratory, October 6, 2014; accessed June 2, 2019 .
39. H. Palevsky, DJ Hughes: Magnetic Inelastic Scattering of Slow Neutrons . In: Physical Review . tape 92 , no. 1 , October 1, 1953, p. 202–203 , doi : 10.1103 / PhysRev.92.202.2 ( aps.org [accessed June 16, 2019]).
40. Léon Van Hove: Time-Dependent Correlations between Spins and Neutron Scattering in Ferromagnetic Crystals . In: Physical Review . tape 95 , no. 6 , September 15, 1954, p. 1374–1384 , doi : 10.1103 / PhysRev.95.1374 ( aps.org [accessed June 16, 2019]).
41. MS Lehmann, TF Koetzle, WC Hamilton: Precision neutron diffraction structure determination of protein and nucleic acid components. I. Crystal and molecular structure of the amino acid L-alanine . In: Journal of the American Chemical Society . tape 94 , no. 8 , April 1, 1972, ISSN  0002-7863 , pp. 2657-2660 , doi : 10.1021 / ja00763a016 .
42. ^ WC Hamilton: Significance tests on the crystallographic R factor . In: Acta Crystallographica . tape 18 , no. 3 , March 10, 1965, ISSN  0365-110X , p. 502-510 , doi : 10.1107 / S0365110X65001081 ( iucr.org [accessed June 16, 2019]).
43. G. Shirane, JD Ax, J. Harada, JP Remeika: Soft Ferroelectric Modes in Lead Titanate . In: Physical Review B . tape 2 , no. 1 , July 1, 1970, p. 155–159 , doi : 10.1103 / PhysRevB.2.155 ( aps.org [accessed June 16, 2019]).
44. RJ Birgeneau, HJ Guggenheim, G. Shirane: Neutron Scattering Investigation of Phase Transitions and Magnetic Correlations in the Two-Dimensional Antiferromagnets K 2 NiF 4 , Rb 2 MnF 4 , Rb 2 FeF 4 . In: Physical Review B . tape 1 , no. 5 , March 1, 1970, pp. 2211–2230 , doi : 10.1103 / PhysRevB.1.2211 ( aps.org [accessed June 16, 2019]).
45. ^ IU Heilmann, G. Shirane, Y. Endoh, RJ Birgeneau, SL Holt: Neutron study of the line-shape and field dependence of magnetic excitations in CuCl 2 · 2N (C 5 D 5 ) . In: Physical Review B . tape 18 , no. 7 , October 1, 1978, p. 3530–3536 , doi : 10.1103 / PhysRevB.18.3530 ( aps.org [accessed June 16, 2019]).
46. G. Shirane, Y. Endoh, RJ Birgeneau, MA Kastner, Y. Hidaka: Two-dimensional antiferromagnetic quantum spin-fluid state in La 2 CuO 4 . In: Physical Review Letters . tape 59 , no. 14 , October 5, 1987, pp. 1613–1616 , doi : 10.1103 / PhysRevLett.59.1613 ( aps.org [accessed June 23, 2019]).
47. K. Yamada, CH Lee, K. Kurahashi, J. Wada, S. Wakimoto, S. Ueki, H. Kimura, Y. Endoh, S. Hosoya, G. Shirane, RJ Birgeneau, M. Greven, MA Kastner and YJ Kim: Doping dependence of the spatially modulated dynamical spin correlations and the superconducting-transition temperature in La 2-x Sr x CuO 4 . In: Physical Review B . tape 57 , no. 10 , March 1, 1998, pp. 6165–6172 , doi : 10.1103 / PhysRevB.57.6165 ( aps.org [accessed June 23, 2019]).
48. S. Uchida, Y. Nakamura, JD Ax, BJ Sternlieb, JM Tranquada: Evidence for stripe correlations of spins and holes in copper oxide superconductors . In: Nature . tape 375 , no. 6532 , June 1995, ISSN  1476-4687 , pp. 561-563 , doi : 10.1038 / 375561a0 ( nature.com [accessed June 23, 2019]).
49. Doon Gibbs, DE Moncton, KL D'Amico, J. Bohr, BH Grier: Magnetic x-ray scattering studies of holmium using synchrotron radiation . In: Physical Review Letters . tape 55 , no. 2 , July 8, 1985, p. 234–237 , doi : 10.1103 / PhysRevLett.55.234 ( aps.org [accessed June 23, 2019]).
50. JP Hannon, GT Trammell, M. Blume, Doon Gibbs: X-ray resonance exchange scattering . In: Physical Review Letters . tape 61 , September 1, 1988, ISSN  0031-9007 , p. 1245-1248 , doi : 10.1103 / PhysRevLett.61.1245 , bibcode : 1988PhRvL..61.1245H .
51. APSUO Arthur H. Compton Award - Past Winners | Advanced Photon Source. In: anl.gov. Argonne National Laboratory , accessed June 23, 2019 .
52. Donald J. Hughes: Neutron Optics . Interscience Monographs in Physics and Astronomy, New York 1954.
53. ^ FGP Seidl, DJ Hughes, H. Palevsky, JS Levin, WY Kato: "Fast Chopper" Time-of-Flight Measurement of Neutron Resonances . In: Physical Review . tape 95 , no. 2 , July 15, 1954, p. 476-499 , doi : 10.1103 / PhysRev.95.476 ( aps.org [accessed June 16, 2019]).
54. ^ Donald J. Hughes: Neutron Cross Sections . Pergamon Press, 1965, ISBN 978-1-4832-5318-3 .
55. TD Lee, CN Yang: Question of Parity Conservation in Weak Interactions . In: Physical Review . tape 104 , no. 1 , October 1, 1956, p. 254-258 , doi : 10.1103 / PhysRev.104.254 ( aps.org [accessed June 23, 2019]).
56. ^ M. Goldhaber, L. Grodzins, AW Sunyar: Helicity of Neutrinos . In: Physical Review . tape 109 , no. 3 , February 1, 1958, p. 1015-1017 , doi : 10.1103 / PhysRev.109.1015 ( aps.org [accessed June 16, 2019]).
57. JH Christenson, JW Cronin, VL Fitch, R. Turlay: Evidence for the 2π Decay of the K 2 0 Meson . In: Physical Review Letters . tape 13 , no. 4 , July 27, 1964, p. 138–140 , doi : 10.1103 / PhysRevLett.13.138 ( aps.org [accessed June 16, 2019]).
58. G. Danby, JM. Gaillard, K. Goulianos, LM Lederman, N. Mistry: Observation of High-Energy Neutrino Reactions and the Existence of Two Kinds of Neutrinos . In: Physical Review Letters . tape 9 , no. 1 , July 1, 1962, p. 36–44 , doi : 10.1103 / PhysRevLett.9.36 ( aps.org [accessed June 16, 2019]).
59. Raymond Davis, Don S. Harmer, Kenneth C. Hoffman: Search for neutrinos from the Sun . In: Physical Review Letters . tape 20 , no. 21 , May 20, 1968, pp. 1205–1209 , doi : 10.1103 / PhysRevLett.20.1205 ( aps.org [accessed June 16, 2019]).
60. John N. Bahcall, Neta A. Bahcall, Giora Shaviv: Present Status of the Theoretical Predictions for the 37 Cl Solar-Neutrino Experiment . In: Physical Review Letters . tape 20 , no. 21 , May 20, 1968, pp. 1209–1212 , doi : 10.1103 / PhysRevLett.20.1209 ( aps.org [accessed June 16, 2019]).
61. ^ W. Hampel: The riddle of the solar neutrinos. (PDF, 2.4 MB): mpg.de . April 18, 2007, accessed June 16, 2019 .
62. JJ Aubert, U. Becker, PJ Biggs, J. Burger, M. Chen: Experimental Observation of a Heavy Particle J . In: Physical Review Letters . tape 33 , no. 23 , December 2, 1974, pp. 1404–1406 , doi : 10.1103 / PhysRevLett.33.1404 ( aps.org [accessed June 16, 2019]).
63. J. -E. Augustin, AM Boyarski, M. Breidenbach, F. Bulos, JT Dakin: Discovery of a Narrow Resonance in e + e - Annihilation . In: Physical Review Letters . tape 33 , no. 23 , December 2, 1974, pp. 1406–1408 , doi : 10.1103 / PhysRevLett.33.1406 ( aps.org [accessed June 16, 2019]).
64. ^ J. Adams, MM Aggarwal, Z. Ahammed, J. Amonett, BD Anderson: Experimental and theoretical challenges in the search for the quark – gluon plasma: The STAR Collaboration's critical assessment of the evidence from RHIC collisions . In: Nuclear Physics A (=  First Three Years of Operation of RHIC ). tape 757 , no. 1 , August 8, 2005, ISSN  0375-9474 , p. 102–183 , doi : 10.1016 / j.nuclphysa.2005.03.085 ( sciencedirect.com [accessed June 16, 2019]).
65. K. Adcox, SS Adler, S. Afanasiev, C. Aidala, NN Ajitanand: Formation of dense partonic matter in relativistic nucleus – nucleus collisions at RHIC: Experimental evaluation by the PHENIX Collaboration . In: Nuclear Physics A (=  First Three Years of Operation of RHIC ). tape 757 , no. 1 , August 8, 2005, ISSN  0375-9474 , p. 184–283 , doi : 10.1016 / j.nuclphysa.2005.03.086 ( sciencedirect.com [accessed June 16, 2019]).
66. BB Back, MD Baker, M. Ballintijn, DS Barton, B. Becker: The PHOBOS perspective on discoveries at RHIC . In: Nuclear Physics A (=  First Three Years of Operation of RHIC ). tape 757 , no. 1 , August 8, 2005, ISSN  0375-9474 , p. 28-101 , doi : 10.1016 / j.nuclphysa.2005.03.084 ( sciencedirect.com [accessed June 16, 2019]).
67. ^ I. Arsene, IG Bearden, D. Beavis, C. Besliu, B. Budick: Quark gluon plasma and color glass condensate at RHIC? The perspective from the BRAHMS experiment . In: Nuclear Physics A . tape 757 , August 1, 2005, ISSN  0375-9474 , p. 1–27 , doi : 10.1016 / j.nuclphysa.2005.02.130 , bibcode : 2005NuPhA.757 .... 1A .
68. LM Schiffer, MH Woert Van, GC Cotzias: Aromatic amino acids and modification of parkinsonism. In: The New England journal of medicine . tape 276 , no. 7 , February 1967, ISSN  0028-4793 , p. 374–379 , doi : 10.1056 / NEJM196702162760703 , PMID 5334614 ( europepmc.org [accessed June 23, 2019]).
69. GC Cotzias, PS Papvasiliou, R. Gellene: Modification of Parkinsonism-Chronic Treatment with L-dopa . In: Journal of Occupational and Environmental Medicine . tape 11 , no. December 12 , 1969, ISSN  1076-2752 , pp. 705 ( lww.com [accessed June 23, 2019]).
70. ^ Roderick MacKinnon, Amelia Kaufman, João H. Morais-Cabral, Yufeng Zhou: Chemistry of ion coordination and hydration revealed by a K + channel – Fab complex at 2.0 Å resolution . In: Nature . tape 414 , no. 6859 , November 2001, ISSN  1476-4687 , p. 43–48 , doi : 10.1038 / 35102009 ( nature.com [accessed June 23, 2019]).
71. Jump up Roderick MacKinnon, Brian T. Chait, Martine Cadene, Jiayun Chen, Alice Lee: The open pore conformation of potassium channels . In: Nature . tape 417 , no. 6888 , May 2002, ISSN  1476-4687 , p. 523-526 , doi : 10.1038 / 417523a ( nature.com [accessed June 23, 2019]).
72. ^ V. Ramakrishnan, Thomas Hartsch, Clemens Vonrhein, Andrew P. Carter, Robert J. Morgan-Warren: Structure of the 30S ribosomal subunit . In: Nature . tape 407 , no. 6802 , September 2000, ISSN  1476-4687 , p. 327–339 , doi : 10.1038 / 35030006 ( nature.com [accessed June 23, 2019]).
73. Thomas A. Steitz, Peter B. Moore, Jeffrey Hansen, Poul Nissen, Nenad Ban: The Complete Atomic Structure of the Large Ribosomal Subunit at 2.4 Å Resolution . In: Science . tape 289 , no. 5481 , August 11, 2000, ISSN  0036-8075 , p. 905–920 , doi : 10.1126 / science.289.5481.905 , PMID 10937989 ( sciencemag.org [accessed June 23, 2019]).
74. ^ WD Tucker, MW Greene, AJ Weiss, A. Murrenhoff: Methods Of Preparation Of Some Carrier-Free Radioisotopes Involving Sorption On Alumina . BNL-3746. Brookhaven National Lab., Upton, NY, May 29, 1958 ( osti.gov [accessed June 23, 2019]).
75. ^ Allison Gasparini: Celebrating the 60th Anniversary of Technetium-99m. In: bnl.gov. Brookhaven National Laboratory, October 24, 2018; accessed June 23, 2019 .
76. ^ Konrad Lischka : William Higinbotham's "Tennis for Two". In: Heise online . July 13, 2001, Retrieved May 26, 2019 .
77. Ernie Tretkoff: October 1958: Physicist Invents First Video Game. In: aps.org. American Physical Society , October 2008, accessed November 2, 2019 .
78. The computer game OXO , developed in 1952, is not commonly referred to as a video game.
79. Integrated high speed MAGLEV system . June 23, 1995 ( google.com [accessed June 23, 2019] Patent US6044770A in Google Patents ).
80. ^ Diane Greenberg: Danby, Powell Win Benjamin Franklin Medal For Their Invention of Magnetically Levitated Trains . In: Brookhaven National Laboratory (Ed.): Brookhaven Bulletin . tape 54 , no. 15 . Upton, New York April 28, 2000, pp. 1 ( bnl.gov [PDF; 282 kB ; accessed on June 23, 2019]).
81. Peter Genzer: Brookhaven Science Associates Names Doon Gibbs Director of Brookhaven National Laboratory. In: bnl.gov. March 29, 2013, accessed April 28, 2019 .
82. ^ Labs at-a-Glance: Brookhaven National Laboratory. In: science.energy.gov. Retrieved April 28, 2019 .
83. ^ A b Diagram of the organization of the Brookhaven National Laboratory. (PDF) In: bnl.gov. Brookhaven National Laboratory, accessed April 28, 2019 .
84. In the NASA Space Radiation Laboratory the effects of ionizing radiation on the human organism and on electronic circuits are investigated.
85. a b L. C. Bland: Transverse Spin and RHIC . February 4, 2006, doi : 10.1142 / 9789812773272_0010 , arxiv : hep-ex / 0602012v1 .
86. J. Wei, J. Kewisch, V. Ptitsin, J. Rose: RHIC Longitudinal parameter revision. (PDF; 84.9 kB) In: cern.ch. P. 377 , accessed June 1, 2019 .
87. ^ Relativistic Heavy Ion Collider (RHIC). In: cern.ch . Retrieved June 1, 2019 .
88. ^ S. Ozaki: The Relativistic Heavy Ion Collider At Brookhaven. (PDF; 449 kB) In: inspirehep.net . P. 1108 , accessed June 1, 2019 .
89. ^ A b RHIC by the Numbers - Particle Collider Used to Explore the Fundamental Building Blocks of Matter. (PDF; 738 kB) In: bnl.gov. Brookhaven National Laboratory, April 2014, accessed June 1, 2019 .
90. STAR Collaboration, J. Adam, L. Adamczyk, J. R. Adams, J. K. Adkins: Polarization of Λ (Λ) Hyperons along the Beam Direction in Au + Au Collisions at = 200 GeV${\ displaystyle {\ sqrt {S_ {NN}}}}$ . In: Physical Review Letters . tape 123 , no. 13 , 27 September 2019, p. 132301 , doi : 10.1103 / PhysRevLett.123.132301 ( aps.org [accessed November 6, 2019]).
91. Heavy ions and quark-gluon plasma | CERN. In: home.cern. Retrieved August 9, 2019 .
92. A. Zelenski, J. Alessi, A. Kponou, D. Raparia: High-Intensity Polarized H - (Proton), Deuteron and 3 He ++ Ion Source Development at BNL . In: European Physical Society Accelerator Group (Ed.): Proceedings of EPAC 2008 . Genoa, Italy 2008, p. 1010 ( cern.ch [PDF; 154 kB ; accessed on November 6, 2019]).
93. J. Adam, L. Adamczyk, J. R. Adams, J. K. Adkins, G. Agakishiev: Improved measurement of the longitudinal spin transfer to Λ and Λ hyperons in polarized proton-proton collisions at = 200 GeV${\ displaystyle {\ sqrt {s}}}$ . In: Physical Review D . tape 98 , no. 11 , December 20, 2018, ISSN  2470-0010 , doi : 10.1103 / physrevd.98.112009 ( mpg.de [accessed November 6, 2019]).
94. RHIC | Black Holes? In: bnl.gov. Brookhaven National Laboratory, accessed June 1, 2019 .
95. ^ Joseph I. Kapusta: Accelerator Disaster Scenarios, the Unabomber, and Scientific Risks . In: Physics in Perspective . tape 10 , no. 2 , June 1, 2008, ISSN  1422-6960 , p. 163-181 , doi : 10.1007 / s00016-007-0366-y .
96. ^ Adrian Cho: Department of Energy picks New York over Virginia for site of new particle collider. In: Science. American Association for the Advancement of Science, January 9, 2020, accessed February 22, 2020 .
97. NSLS-II Accelerator Parameters. In: bnl.gov. Brookhaven National Laboratory, accessed May 30, 2019 .
98. Comparison of flux density and brilliance of NSLS and NSLS-II: bnl.gov (accessed on August 22, 2019)
99. Comparison of the brilliance of different synchrotrons of the third generation: www.maxiv.lu.se (accessed on August 22, 2019)
100. Comparison of the brilliance of third generation synchrotrons with the average brilliance and the brilliance at the pulse maximum of free-electron lasers in the X-ray range: photon-science.desy.de (accessed on August 22, 2019)
101. Brookhaven National Laboratory (Ed.): NSLS-II Preliminary Design Report - Project Overview . ( bnl.gov [PDF; 60 kB ; accessed on July 29, 2019]).
102. National Synchrotron Light Source II Named PMI Project of the Year. In: pmi.org. Project Management Institute, September 26, 2016, accessed May 30, 2019 .
103. Brookhaven National Laboratory (Ed.): National Synchrotron Light Source II Strategic Plan - October 2018 . October 31, 2018, p. 1 ( bnl.gov [PDF; 3.6 MB ; accessed on July 29, 2019]).
104. Panakkal K. job, William R. Casey: Shielding calculations for the National Synchrotron Light Source-II experimental beamlines. In: inspirehep.net . January 11, 2013, accessed May 30, 2019 .
105. Brookhaven National Laboratory (Ed.): National Synchrotron Light Source II Strategic Plan - October 2018 . October 31, 2018, p. 2 ( bnl.gov [PDF; 3.6 MB ; accessed on July 29, 2019]).
106. a b CFN Strategic Plan: Introduction. In: bnl.gov. Brookhaven National Laboratory, accessed May 23, 2019 .
107. NSRC Home - Nanoscale Science Research Centers. In: sandia.gov. Retrieved May 23, 2019 .
108. Center for Functional Nanomaterials (CFN). In: bnl.gov. Brookhaven National Laboratory, accessed May 23, 2019 .
109. ^ The Scientific Data & Computing Center (SDCC) at Brookhaven National Laboratory. In: bnl.gov. Brookhaven National Laboratory, accessed August 5, 2019 .
110. ^ Scientific Data and Computing Center. In: bnl.gov. Brookhaven National Laboratory, accessed August 5, 2019 .
111. Our Science - What we study and why. In: bnl.gov. Brookhaven National Laboratory, accessed September 9, 2019 .
112. ^ Mark G. Alford, Andreas Schmitt, Krishna Rajagopal, Thomas Schäfer: Color superconductivity in dense quark matter . In: Reviews of Modern Physics . tape 80 , no. 4 , November 11, 2008, p. 1455–1515 , doi : 10.1103 / RevModPhys.80.1455 ( aps.org [accessed August 5, 2019]).
113. STAR Collaboration, L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal: Measurement of D 0 Azimuthal Anisotropy at Midrapidity in Au + Au Collisions at = 200 GeV${\ displaystyle {\ sqrt {S_ {NN}}}}$ . In: Physical Review Letters . tape 118 , no. 21 , May 26, 2017, p. 212301 , doi : 10.1103 / PhysRevLett.118.212301 ( aps.org [accessed July 28, 2019]).
114. STAR Collaboration, L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal: Beam-Energy Dependence of the Directed Flow of Protons, Antiprotons, and Pions in Au + Au Collisions . In: Physical Review Letters . tape 112 , no. 16 , April 23, 2014, p. 162301 , doi : 10.1103 / PhysRevLett.112.162301 ( aps.org [accessed July 28, 2019]).
115. Y. Zoulkarneeva, R. Zoulkarneev, YH Zhu, X. Zhu, W. Zhou: Observation of the antimatter helium-4 nucleus . In: Nature . tape 473 , no. 7347 , May 2011, ISSN  1476-4687 , p. 353–356 , doi : 10.1038 / nature10079 ( nature.com [accessed July 28, 2019]).
116. M. Zyzak, Y. Zoulkarneeva, X. Zhu, L. Zhou, C. Zhong: Measurement of interaction between antiprotons . In: Nature . tape 527 , no. 7578 , November 2015, ISSN  1476-4687 , p. 345-348 , doi : 10.1038 / nature15724 ( nature.com [accessed July 28, 2019]).
117. ^ Large Synoptic Survey Telescope (LSST). In: bnl.gov. Brookhaven National Laboratory, accessed August 5, 2019 .
118. ^ Baryonic Oscillation Spectroscopic Survey (BOSS). In: bnl.gov. Brookhaven National Laboratory, accessed August 5, 2019 .
119. Daya Bay Neutrino Experiment. In: bnl.gov. Brookhaven National Laboratory, accessed August 5, 2019 .
120. ^ Brookhaven and the Large Hadron Collider. In: bnl.gov. Brookhaven National Laboratory, accessed August 5, 2019 .
121. ^ Photon Sciences, Light as a Discovery Tool. In: bnl.gov. Brookhaven National Laboratory, accessed August 5, 2019 .
122. Climate, Environment and Bisoscience. In: bnl.gov. Brookhaven National Laboratory, accessed August 5, 2019 .
123. Energy Security. In: bnl.gov. Brookhaven National Laboratory, accessed August 5, 2019 .

Coordinates: 40 ° 52 '24 "  N , 72 ° 52' 19.4"  W.