Title:
放射線モニタ
Document Type and Number:
Japanese Patent JP6516596
Kind Code:
B2
Abstract:
The purpose of the present invention is to provide a radiation monitor that can easily and accurately measure the dosage rate of radiation while inhibiting the risk of explosions and the like, and that can also measure the temperature of a radiation light emitting element itself. The radiation monitor Ml according to the present invention comprises: a radiation light emitting element 10 that contains a rare earth element and that emits light of a plurality of wavelengths by means of incident radiation; an optical fiber 20 that transmits the light emitted from the radiation light emitting element 10; an electrical pulse converter 30 that converts the transmitted light to electrical pulses at each wavelength; an electrical pulse detector 40 that measures the counting rate of electrical pulses at each wavelength using the electrical pulses sent from the electrical pulse converter 30; and an analyzer 50 that computes the dosage rate of radiation and the temperature of the radiation light emitting element 10 by collating the counting rate of electrical pulses measured at each wavelength and the relationship of the counting rate of photons to the temperature of the radiation light emitting element 10 and the dosage rate of radiation stored in a database in advance.
Inventors:
Takahiro Tadokoro
Kazuo Tominaga
Ueno Katsunori
Koichi Okada
Yasushi Nagumo
Hitoshi Kuwahara
Keisuke Sasaki
Kazuo Tominaga
Ueno Katsunori
Koichi Okada
Yasushi Nagumo
Hitoshi Kuwahara
Keisuke Sasaki
Application Number:
JP2015135614A
Publication Date:
May 22, 2019
Filing Date:
July 06, 2015
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G01T1/20; G01T1/00
Domestic Patent References:
| JP2001056381A | ||||
| JP2002082171A | ||||
| JP6258446A | ||||
| JP4160330A | ||||
| JP2005156158A | ||||
| JP2236191A | ||||
| JP4315985A | ||||
| JP2006083325A | ||||
| JP6072075U |
Foreign References:
| US20130248721 | ||||
| US20150083923 |
Attorney, Agent or Firm:
Wilfort International Patent Office