PARTICLE BEAM DETECTOR AND NEUTRON DETECTOR USING ZSN PHOSPHOR

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.

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Inventors:

KATAGIRI MASAKI

Application Number:

JP2004120790A

Publication Date:

October 27, 2005

Filing Date:

April 15, 2004

Export Citation:

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Assignee:

JAPAN ATOMIC 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

Attorney, Agent or Firm:

Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shurin Sakurai

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