Super FRS
| Surname | Superconducting fragment separator |
| completion | 2025 (planned) |
| status | under construction |
| project Manager | Haik Simon |
The superconducting fragment separator ( Super-FRS for short , more rarely S-FRS ) is a sub-project of the Facility for Antiproton and Ion Research (FAIR). It is being built on the site of the GSI Helmholtz Center for Heavy Ion Research in Darmstadt . FAIR and Super-FRS should be completed in 2025.
meaning
The Super-FRS will be the central research tool for NUSTAR , one of the four central FAIR experiment areas. The Super-FRS will serve as both a beamline and an experiment . Seven ( Germany , Russia , India , France , Finland , Poland and Sweden ) of the current eleven shareholders of the FAIR project will, along with industrial companies from all over the world, contribute parts to the Super-FRS. Main superconducting components are tested at CERN , which is involved in a cooperation .
description
The Super-FRS will work as a two-stage fragment separator similar to a mass spectrometer , consisting of a pre -separator and a main separator . Both separator stages use the Bρ-ΔE-Bρ method, which combines a magnetic stiffness analysis (Bρ) in front of and behind a shaped degrader system (ΔE). The main separator is divided into three jet branches:
- a ring branch (RB),
- a high energy branch (HEB)
- a low energy branch (LEB) to which a special magnetic spectrometer / energy buncher system ( focusing ) is connected.
The Super-FRS will be characterized by a large phase space acceptance, which is ensured by using superconducting magnets with a large aperture .
For the investigations and experiments, rare isotopes of all elements including uranium are generated with relativistic energies and spatially separated within a few hundred nanoseconds , which enables the investigation of very short-lived atomic nuclei . The high radiation exposure in the target area caused by the high energies of the primary beam requires a special design . A heavily shielded area contains the high-performance production target for generating the secondary beams required for the experiments and the beam catcher systems that have to cut off the non-reacting primary beam .
Suitable particle detectors allow complete particle identification and make the information available to the connected experiments after each detection event. Experiments to develop and test the detector systems of the Super FRS are carried out on the smaller forerunner FRS from GSI.
In addition to superconducting magnets for beam transport, radiation-resistant normally conductive magnets are required in the target area. Beam components must be designed to be remotely controllable . Maintenance work can only be carried out in a hot cell complex, which will be located in the Super FRS target building.
Project structure
Organizationally, the project is divided into several work packages (WPs). The various magnet groups, beam calculation , beam diagnosis , power supply for the magnets, beam instrumentation, vacuum, and diagnosis and data management are important.
For the construction and commissioning of the Super-FRS, an inflation-adjusted value of around 95 million euros will be spent on 2005 (as of 2020).
literature
- FAIR-NUSTAR: Experimental investigations and simulations of material properties and critical parameters for the Super-FRS target and beam arrester of the FAIR system: Final report: Funding period: July 1, 2012 to June 30, 2015 , Technische Universität Darmstadt , Darmstadt 2016
- Hans Geissel u. a .: Technical Report on the Design, Construction, Commissioning and Operation of the Super-FRS of FAIR , GSI Report 2005-02, Darmstadt 2005, Institute Report, 104 pages
- Thomas Nilsson et al. a .: The NUSTAR Project at FAIR . In: Physica Scripta , Volume 2015, Number T166, The Royal Swedish Academy of Sciences, Institute of Physics Publishing, November 26, 2015
- Martin Winkler u. a .: The status of the Super-FRS in-flight facility at FAIR , Volume 266, Issues 19-20, 10-2008. In: Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms , pp. 4183-4187
- Overview of publications on Super-FRS on repository.gsi.de
Web links
- The Super-FRS , website of the project (overview) with graphic representation of the area of the Super-FRS
- Superconducting fragment separator (Super-FRS) , corresponding website for the FAIR experiment NUSTAR
Individual evidence
- ↑ GSI Helmholtz Center for Heavy Ion Research GmbH: Facts and figures on the FAIR project. GSI, accessed on January 20, 2020 (German, English).
- ^ GSI Helmholtz Center for Heavy Ion Research GmbH: The project structure. GSI, accessed on January 21, 2020 (German, English).