Passive magnetic cylindrical shielding at gauss-range static fields

被引:15
作者
Calvo, E. [1 ]
Cerrada, M. [1 ]
Gil-Botella, I. [1 ]
Palomares, C. [1 ]
Rodriguez, I. [1 ]
Toral, F. [1 ]
Verdugo, A. [1 ]
机构
[1] CIEMAT, E-28040 Madrid, Spain
关键词
Passive magnetic shielding; Cylindrical shielding; Photomultiplier; Low magnetic field; Helmholtz coils; Mumetal; Double Chooz; Reactor neutrino experiments;
D O I
10.1016/j.nima.2008.12.186
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A study has been performed in order to find the optimal solution for the magnetic shielding of the 10 in. photomultipliers which will be used in the Double Chooz neutrino experiment under a very low magnetic field (less than 2G). The results obtained with analytical and numerical calculations are compared with measurements made using test prototypes of several magnetic materials, with different dimensions and from different manufacturers. An exhaustive analysis of the magnetic materials was needed to understand the observed disagreement between calculations and test results obtained at low field values. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:560 / 567
页数:8
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