Ultra-cold neutron production with super-fluid helium and spallation neutrons

被引：4
|
作者：
Masuda, Y [1 ]
机构：
[1] IPNS, KEK, Neutron Sci Lab, Tsukuba, Ibaraki 3050801, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 440卷 / 03期
关键词：
UCN; spallation; superfluid helium;
D O I：
10.1016/S0168-9002(99)01061-X
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Ultra-cold neutrons (UCN) production in superfluid helium with spallation neutrons is discussed. A source is described, where superfluid helium is located in a cold moderator of deuterium at 20 K surrounded by a thermal moderator of heavy water at 300 It. A lead target is installed in the thermal moderator for neutron production via a medium energy proton induced spallation reaction. A Monte Carlo simulation showed that a UCN density of the order of 10(5) n/cm(3) is achievable with an acceptable heat load for the helium cryostat. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：682 / 684
页数：3
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