Title:
中性子検出器
Document Type and Number:
Japanese Patent JP4306135
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a neutron detector for fast and intermediate neutrons capable of detecting a neutron with lower energy even in a place including γ-ray or β-ray with high energy. SOLUTION: A depletion layer 13a formed on an incident electrode 11a side on which a recoil proton by neutron is incident is not formed in a solid state but formed in a shape where parts having no depletion layer are dispersed. The parts having no depletion part are dispersed, whereby the charge quantity of current pulse by γ-ray or β-ray is reduced, and the discrimination level of a wave height value discrimination circuit for discriminating the current pulse by γ-ray or β-ray can be reduced to lower the minimum energy of the detectable neutron. Examples of the shape include a concentric annular shape, a branched shape and the like.
Inventors:
Go Ishikura
Application Number:
JP2001069760A
Publication Date:
July 29, 2009
Filing Date:
March 13, 2001
Export Citation:
Assignee:
Fuji Electric Systems Co., Ltd.
International Classes:
G01T3/00; G21C17/12
Domestic Patent References:
| JP4013563B2 | ||||
| JP2260466A | ||||
| JP5008595A | ||||
| JP2000206261A | ||||
| JP61156774A | ||||
| JP2000180557A | ||||
| JP2001255379A |
Attorney, Agent or Firm:
Yoichi Matsumoto