Storage of ultracold neutrons in high resistivity, non-magnetic materials with high Fermi potential

被引:25
作者
Bodek, K. [2 ]
Daum, M. [1 ]
Henneck, R. [1 ]
Heule, S. [1 ,3 ]
Kasprzak, M. [1 ,4 ]
Kirch, K. [1 ]
Knecht, A. [1 ,3 ]
Kuzniak, M. [1 ,2 ]
Lauss, B. [1 ]
Meier, M. [1 ]
Petzoldt, G. [1 ]
Schneider, M. [1 ]
Zsigmond, G. [1 ]
机构
[1] Paul Scherrer Inst, CH-3052 Villigen, Switzerland
[2] Jagiellonian Univ, Smoluchowski Inst Phys, Krakow, Poland
[3] Univ Zurich, CH-8057 Zurich, Switzerland
[4] Stefan Meyer Inst, Vienna, Austria
关键词
Ultracold neutron storage; Fermi potential; Neutron reflection; Deuterated polystyrene; Deuterated polyethylene;
D O I
10.1016/j.nima.2008.09.018
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We report the use of deuterated polystyrene (dPS) and deuterated polyethylene (dPE) for the storage of ultracold neutrons (UCN) in an experiment to search for a finite neutron electric dipole moment (nEDM). The Fermi potential of thin film coatings on silicon was measured by cold neutron reflectometry as V(dPS) = (161 +/- 10) neV and V(dPE) = (214 +/- 10) neV. The UCN loss factor at room temperature of a dPS-coated polystyrene insulator is eta = (3 +/- 1) x 10(-4). (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:222 / 226
页数:5
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