Fast zero-energy arrangement Karlsruhe

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Fast zero-energy arrangement Karlsruhe
Fast zero-energy arrangement Karlsruhe (Baden-Württemberg)
Fast zero-energy arrangement Karlsruhe
Coordinates 49 ° 5 '29 "  N , 8 ° 25' 46"  E Coordinates: 49 ° 5 '29 "  N , 8 ° 25' 46"  E
country Germany
Data
operator Nuclear Research Center Karlsruhe
start of building Fall 1963
Installation December 19, 1966
Shutdown November 1985
Shutdown May 6, 1987
Reactor type Zero power reactor
Thermal performance Max. 1 kW
Neutron flux density 10 7  n / (cm 2 s)
was standing February 7, 2009

The Rapid Zero Energy Arrangement Karlsruhe ( SNEAK ) was a reactor research facility ( zero power reactor ) that was operated in the Karlsruhe Nuclear Research Center (now the Karlsruhe Institute of Technology ) from 1966 to 1985. In it, reactor cores for breeder reactors were tested in terms of neutron physics.

history

Construction of the reactor began in autumn 1964. In December 1966 the reactor reached its first criticality . The reactor went into operation as the penultimate of six nuclear facilities at the Karlsruhe Nuclear Research Center. Research reactor 2 was commissioned five years earlier, the Rapid Thermal Argonaut Reactor three years earlier , the multi-purpose research reactor one year earlier and a Siemens teaching reactor commissioned in the same year . The KNK nuclear power plant first became critical five years later.

After 19 years of operation, SNEAK was the fourth of the six systems to be shut down for the last time in November 1985. The permit for decommissioning was then granted on June 3, 1986, and the reactor facility was finally released from the scope of the German Atomic Energy Act on May 6, 1987 .

construction

The thermal power of the reactor was limited to a maximum of 1 kW. As a result, the room air was sufficient for cooling. This made it possible to flexibly build up breeder reactor cores of various sizes, geometries and compositions in a modular manner and to investigate neutron physics. The maximum neutron flux density was approx. 10 7 n / cm 2 s.

research

The system was an important aid in the development of breeder reactors (so-called "fast breeders"). It was the determination of critical mass , power distribution , control rod - reactivity values , hatching rate , neutron spectra and different reactivity - especially sodium void coefficients used -.

See also

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  1. ^ History of the Karlsruhe Research Center - 1966 , information page of the Karlsruhe Research Center
  2. ↑ List of nuclear facilities in the Federal Republic of Germany ( Memento from January 10, 2014 in the Internet Archive ), Federal Office for Radiation Protection, November 2013
  3. ↑ a b W. Marth. The fast breeder SNR 300 in the ups and downs of its history (PDF; 5.5 MB), report KFK 4666 of the Karlsruhe nuclear research center, May 1992
  4. ^ Nuclear Research Reactors in the World , International Atomic Energy Agency IAEA