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

页码：682 / 684

页数：3

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