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Giant pulses of thermal neutrons in large accelerator beam dumps. Possibilities for experiments


Frank Neutron Physics Laboratory, Joint Institute of Nuclear Research, Dubna, Moscow Region, Russian Federation

A short review is presented of the development in Russia of intense pulsed neutron sources for physical research — the pulsating fast reactors IBR-1, IBR-30, IBR-2 (Joint Institute for Nuclear Research, Dubna), and the neutron-radiation complex of the Moscow meson factory — the ‘Troitsk Trinity’ (RAS Institute for Nuclear Research, Troitsk, Moscow region). The possibility of generating giant neutron pulses in beam dumps of superhigh energy accelerators is discussed. In particular, the possibility of producing giant pulsed thermal neutron fluxes in modified beam dumps of the large hadron collider (LHC) under construction at CERN is considered. It is shown that in the case of one-turn extraction of 7-TeV protons accumulated in the LHC main rings on heavy targets with water or zirconium-hydride moderators placed in the front part of the LHC graphite beam-dump blocks, every 10 hours relatively short (from ~ 100 μs) thermal neutron pulses with a peak flux density of up to ~ 1020 neutrons cm-2 s-1 may be produced. The possibility of applying such neutron pulses in physical research is discussed.

Text can be downloaded in Russian. English translation is available on IOP Science.
PACS: 28.20.−v, 29.20.−c, 61.12.−q (all)
DOI: 10.1070/PU2006v049n12ABEH005841
URL: https://ufn.ru/en/articles/2006/12/c/
Citation: Stavissky Yu Ya "Giant pulses of thermal neutrons in large accelerator beam dumps. Possibilities for experiments" Phys. Usp. 49 1253–1262 (2006)
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Оригинал: Стависский Ю Я «Гигантские импульсы тепловых нейтронов в ловушках больших ускорителей. Возможности физических экспериментов» УФН 176 1283–1292 (2006); DOI: 10.3367/UFNr.0176.200612c.1283

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