Title:
NEUTRON DOSIMETRY ELEMENT AND MEASURING METHOD OF NEUTRON DOSE
Document Type and Number:
Japanese Patent JP2018136317
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a neutron dosimetry element and a measuring method of neutron dose which are able to perform measurement at the same site, cause no error and no trouble in accuracy, and are fuss-free.SOLUTION: There are provided a neutron dosimetry element primarily containing a compound represented by CaSO:X (where X represents rare earth or Mn, and the addition amount of X is 0.01 mol% to 1 mol% in the whole compound), and a measuring method of neutron dose using the neutron dosimetry element. The measuring method of neutron dose includes: an irradiation step of irradiating the neutron dosimetry element with a radial ray without blocking a specific ray; a thermofluorescence detection step of obtaining a glow curve by heating the neutron dosimetry element subjected to the irradiation step; and a radiation dose detection step of detecting neutron dose from the glow curve obtained. The heating speed in the thermofluorescence detection step is 0.01 to 1°C/second.SELECTED DRAWING: None
Inventors:
SHINSHO KIYOMITSU
KOBA YUSUKE
KOBA YUSUKE
Application Number:
JP2018030227A
Publication Date:
August 30, 2018
Filing Date:
February 23, 2018
Export Citation:
Assignee:
UNIV TOKYO METROPOLITAN
International Classes:
G01T3/00; C09K11/00; C09K11/56; G01T1/11
Domestic Patent References:
| JPS5418289U | 1979-02-06 | |||
| JP2014028913A | 2014-02-13 | |||
| JPS489997B1 |
Foreign References:
| US4238684A | 1980-12-09 |
Other References:
相澤 若奈 他: "中性子線及びγ線混在場でのCaSO4:Tm,6Li とCaSO4:Tm,7Li の熱蛍光特性", 第76回応用物理学会秋季学術講演会 講演予稿集 (2015 名古屋国際会議場), vol. 15a-2W-9, JPN7021004877, 2015, JP, pages 02 - 058, ISSN: 0004639426
K. AYYANGAR ET AL: "Mixed Field Dosimetry with CaSO4:Dy", PHYSICS IN MEDICINE & BIOLOGY, vol. 19, no. 5, JPN7021004878, 1974, US, pages 656 - 664, ISSN: 0004639427
K. AYYANGAR ET AL: "Mixed Field Dosimetry with CaSO4:Dy", PHYSICS IN MEDICINE & BIOLOGY, vol. 19, no. 5, JPN7021004878, 1974, US, pages 656 - 664, ISSN: 0004639427