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Patent Searching and Data


Title:
PARTICLE BEAM DETECTOR AND NEUTRON DETECTOR USING ZSN PHOSPHOR
Document Type and Number:
Japanese Patent JP2005300479
Kind Code:
A
Abstract:

To provide a particle beam detector which responds to high counting rate measurement and with low sensitivity with respect to gamma ray.

By using ZnS:Ag, Cl phosphors which have a very large phosphor quantity to particle beam and can be easily detected, as it is, a newly found phenomenon that the phosphor lifetime in a wavelength region with short wavelength being short is used to improve the counting characteristics, whereby high-counting rate measurements of particle beam are realized. When a phosphor wavelength shorter than 450 nm is cut out by use of B370 as an optical filter, the phosphor lifetime of a short phosphor lifetime component could be improved from 370 ns to 200 ns.


Inventors:
Katagiri, Masaki
Application Number:
JP2004000120790
Publication Date:
October 27, 2005
Filing Date:
April 15, 2004
Export Citation:
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Assignee:
JAPAN ATOM ENERGY RES INST
International Classes:
G01T1/20; C09K11/00; C09K11/08; C09K11/56; G01T1/00; G01T1/202; G01T3/00; G01T3/06; (IPC1-7): G01T1/20; C09K11/00; C09K11/08; C09K11/56; G01T3/06