JPS56119878A - Method and device for monitoring radioactive dust in air - Google Patents

Method and device for monitoring radioactive dust in air

Info

Publication number
JPS56119878A
JPS56119878A JP2335580A JP2335580A JPS56119878A JP S56119878 A JPS56119878 A JP S56119878A JP 2335580 A JP2335580 A JP 2335580A JP 2335580 A JP2335580 A JP 2335580A JP S56119878 A JPS56119878 A JP S56119878A
Authority
JP
Japan
Prior art keywords
dust
air
radioactivity
filter paper
monitor path
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.)
Granted
Application number
JP2335580A
Other languages
Japanese (ja)
Other versions
JPS61590B2 (en
Inventor
Toshinori Oshima
Teruo Ikeda
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.)
Hitachi Ltd
Original Assignee
Aloka Co Ltd
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 Aloka Co Ltd filed Critical Aloka Co Ltd
Priority to JP2335580A priority Critical patent/JPS56119878A/en
Publication of JPS56119878A publication Critical patent/JPS56119878A/en
Publication of JPS61590B2 publication Critical patent/JPS61590B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/02—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids
    • G01T7/04—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids by filtration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • 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 calculate rapidly and automatically the density of a radioactive substance in the air by using the measured value of the radioactivity of filter paper adsorbing dust in the air and duct collection conditions recorded on the surface of the filter paper, by measuring the radioactivity of the filter paper at every dust adsorption part. CONSTITUTION:The monitor path consists of the 1st monitor path 10 and 2nd monitor path 12. Both monitor paths 10 and 12 are equipped with a roll of dust absorbing long-sized filter paper 14 in an interchangeable cassette including supply reel 16 and take-up reel 18. In the 1st monitor path 10, dust in the air is adsorbed and dust collection conditions are recorded; in the 2nd monitor path 12, radioactivity is measured and the dust collection conditions are read. Controller 44 calculates the density of the radioactive substance in the air from the radioactivity measured value and the dust collection conditions. The arithmetic result of controller 44 is outputted from output device 46 as radioactive substance density data.
JP2335580A 1980-02-28 1980-02-28 Method and device for monitoring radioactive dust in air Granted JPS56119878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2335580A JPS56119878A (en) 1980-02-28 1980-02-28 Method and device for monitoring radioactive dust in air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2335580A JPS56119878A (en) 1980-02-28 1980-02-28 Method and device for monitoring radioactive dust in air

Publications (2)

Publication Number Publication Date
JPS56119878A true JPS56119878A (en) 1981-09-19
JPS61590B2 JPS61590B2 (en) 1986-01-09

Family

ID=12108257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2335580A Granted JPS56119878A (en) 1980-02-28 1980-02-28 Method and device for monitoring radioactive dust in air

Country Status (1)

Country Link
JP (1) JPS56119878A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59180483A (en) * 1983-03-31 1984-10-13 Toshiba Corp Radioactive dust sampler
JPS608888U (en) * 1983-06-29 1985-01-22 株式会社東芝 radioactive dust sampler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59180483A (en) * 1983-03-31 1984-10-13 Toshiba Corp Radioactive dust sampler
JPS608888U (en) * 1983-06-29 1985-01-22 株式会社東芝 radioactive dust sampler

Also Published As

Publication number Publication date
JPS61590B2 (en) 1986-01-09

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