Title:
放射線モニタリング装置およびその製造方法
Document Type and Number:
Japanese Patent JP4852410
Kind Code:
B2
Abstract:
Described as a self-indicating instant radiation dosimeter (1001) for monitoring high energy radiations, such as X-ray. The dosimeter contains a radiation sensitive, color changing, indicating composition (10), e.g., a diacetylene (R-C≡C-C≡C-R', where R and R' are substituents groups) or a radiochromic dye, a polymeric binder (20) and optionally a shelf life extender (50) or an activator (40). The radiation sensitive composition (10) changes color instantly when exposed to high energy radiation. The dose is estimated by comparing the color with a color reference chart or more accurately with a spectrophotometer or an optical densitometer. The radiation sensitive composition (10) is protected from low energy radiation such as UV light, by a layer of low energy absorbing materials, such as UV absorbers.
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Inventors:
Patel, Gorde Humbhai, N.
Application Number:
JP2006503901A
Publication Date:
January 11, 2012
Filing Date:
February 26, 2004
Export Citation:
Assignee:
JP Laboratories, Inc.
International Classes:
G01T1/04; C08K5/00; C08L101/00; G01T1/06
Domestic Patent References:
| JP2001242249A | 2001-09-07 |
Foreign References:
| US6504161B1 | 2003-01-07 | |||
| US6015621A | 2000-01-18 |
Attorney, Agent or Firm:
Hatta International Patent Corporation
Mikio Hatta
Yasuo Nara
Katsuyuki Utani
Ken Fujita
Masanori
Toshihiro Hasegawa
Mikio Hatta
Yasuo Nara
Katsuyuki Utani
Ken Fujita
Masanori
Toshihiro Hasegawa