New source for ultracold neutrons at the Institut Laue-Langevin

被引：44
|
作者：
Piegsa, F. M. [1 ,2 ]
Fertl, M. [1 ,3 ]
Ivanov, S. N. [1 ]
Kreuz, M. [1 ]
Leung, K. K. H. [1 ]
Schmidt-Wellenburg, P. [1 ,3 ]
Soldner, T. [1 ]
Zimmer, O. [1 ]
机构：
[1] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France
[2] ETH, Inst Particle Phys, CH-8093 Zurich, Switzerland
[3] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
来源：
PHYSICAL REVIEW C | 2014年 / 90卷 / 01期
关键词：
DIAMOND-LIKE CARBON; COLD NEUTRONS; SEARCH; UCN; STORAGE; HELIUM;
D O I：
10.1103/PhysRevC.90.015501
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
A new intense superthermal source for ultracold neutrons (UCN) was installed at a dedicated beam line at the Institut Laue-Langevin. Incident neutrons with a wavelength of 0.89 nm are converted to UCN in a 5-liter volume filled with superfluid He-4 at a temperature of about 0.7 K. The UCN can be extracted to room temperature experiments. We present the cryogenic setup of the source, a characterization of the cold neutron beam, and UCN production measurements, where a UCN density in the production volume of at least 55 per cm(3) was determined.
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页数：10
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