JPS5763462A - Method of evaluating dose of ionizing electromagnetic radiation - Google Patents

Method of evaluating dose of ionizing electromagnetic radiation

Info

Publication number
JPS5763462A
JPS5763462A JP13805680A JP13805680A JPS5763462A JP S5763462 A JPS5763462 A JP S5763462A JP 13805680 A JP13805680 A JP 13805680A JP 13805680 A JP13805680 A JP 13805680A JP S5763462 A JPS5763462 A JP S5763462A
Authority
JP
Japan
Prior art keywords
dose rate
energy
rate
natural
pulse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13805680A
Other languages
Japanese (ja)
Inventor
Tokiji Uenishi
Hideharu Matsuda
Shigeko Furukawa
Susumu Minato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP13805680A priority Critical patent/JPS5763462A/en
Publication of JPS5763462A publication Critical patent/JPS5763462A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/02—Dosimeters

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measurement Of Radiation (AREA)

Abstract

PURPOSE:To permit to determine a radiation dose rate of artificial radiation sources with one measurement, by a method wherein a background dose rate is evaluated from concentrations of three natural nucleids emitting gammer rays and thus evaluated background dose rate is subtracted from the total exposure rate. CONSTITUTION:A pulse-height analyzer is connected to a detector capable of measuring energy of ionizing electromagnetic radiation, thereby to record a pulse- height profile of the ionizing electromagnetic radiation at a measuring place. This pulse-height profile is converted into an energy profile, so that the total exposure rate Rt is obtained by multiplying an energy absorption rate of air for each energy region. The energy profile includes therein a background dose rate Rb due to three natural uncleids emitting gamma rays[potassium 40 (2), bismuth 214 (3) and thallium 208 (4)], in addition to a dose rate from an artificial radiation source (1), Rb is determined by natural concentrations S1-S3 on the basis of the following formula; Rb=k1.S1+k2.S2+k3.S3 (wherein k1-k3 are conversion constants), those natural concentrations being obtained by multiplying peak values of the energy profile at the measuring place with proportional constants. By so doing, the dose rate of the artificial radiation R is obtained by one measurement from the following formula; R=Rt-Rb.
JP13805680A 1980-10-02 1980-10-02 Method of evaluating dose of ionizing electromagnetic radiation Pending JPS5763462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13805680A JPS5763462A (en) 1980-10-02 1980-10-02 Method of evaluating dose of ionizing electromagnetic radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13805680A JPS5763462A (en) 1980-10-02 1980-10-02 Method of evaluating dose of ionizing electromagnetic radiation

Publications (1)

Publication Number Publication Date
JPS5763462A true JPS5763462A (en) 1982-04-16

Family

ID=15212946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13805680A Pending JPS5763462A (en) 1980-10-02 1980-10-02 Method of evaluating dose of ionizing electromagnetic radiation

Country Status (1)

Country Link
JP (1) JPS5763462A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03123881A (en) * 1989-10-06 1991-05-27 Hitachi Ltd Method and apparatus for analyzing gamma ray nuclide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03123881A (en) * 1989-10-06 1991-05-27 Hitachi Ltd Method and apparatus for analyzing gamma ray nuclide

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