GB812591A - Radio-active measuring system - Google Patents

Radio-active measuring system

Info

Publication number
GB812591A
GB812591A GB344/57A GB34457A GB812591A GB 812591 A GB812591 A GB 812591A GB 344/57 A GB344/57 A GB 344/57A GB 34457 A GB34457 A GB 34457A GB 812591 A GB812591 A GB 812591A
Authority
GB
United Kingdom
Prior art keywords
radiation
source
chamber
chambers
radio
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.)
Expired
Application number
GB344/57A
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.)
Schneider Electric Systems USA Inc
Original Assignee
Foxboro Co
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 Foxboro Co filed Critical Foxboro Co
Publication of GB812591A publication Critical patent/GB812591A/en
Expired 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
    • G01T1/16—Measuring radiation intensity
    • G01T1/185—Measuring radiation intensity with ionisation chamber arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/16—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being a moving sheet or film

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measurement Of Radiation (AREA)

Abstract

812,591. Radio-active measuring. FOXBORO CO. Jan. 3, 1957 [Jan. 26, 1956], No. 344/57. Class 40 (3). A measuring system consists of radio-active source means emitting hard and soft radiation into two ionization chambers, the outputs from which are combined, the cham. bers being mounted together on one rigid support and the source means on another. Beta rays from a thallium 204 source 16 pass through an air gap 18 and the material under test 19 into an ionization chamber 12 which is faced by a stainless steel window 20. Chamber 12 is electrically polarized by electrodes 21 and 22, the current flowing through the chamber varying as a factor of the radiation. A second source 25 consists of hard radiation strontium 90. The outputs from the two chambers are combined differentially, amplified at 23 and displayed at 24. The two sources are fixed to a rigid support 32 which is adjustable by screws 35 and are provided with individual adjustment by screws 39. Pins 36 prevent rotation. The chambers are similarly adjustable. Alternatively only one source of radiation, caesium 137 which emits both gamma and beta rays, and two ionization chambers responding respectively to the beta and gamma rays may be used. The gamma-ray chamber may be pressurized.
GB344/57A 1956-01-26 1957-01-03 Radio-active measuring system Expired GB812591A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US812591XA 1956-01-26 1956-01-26

Publications (1)

Publication Number Publication Date
GB812591A true GB812591A (en) 1959-04-29

Family

ID=22163072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB344/57A Expired GB812591A (en) 1956-01-26 1957-01-03 Radio-active measuring system

Country Status (1)

Country Link
GB (1) GB812591A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253466B (en) * 1961-07-20 1967-11-02 Landis & Gyr Ag Area weight measuring system for non-contact measurement of the area weight of wide strip-shaped materials by means of radioactive radiation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253466B (en) * 1961-07-20 1967-11-02 Landis & Gyr Ag Area weight measuring system for non-contact measurement of the area weight of wide strip-shaped materials by means of radioactive radiation

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