GB950896A - Neutron flux monitor - Google Patents

Neutron flux monitor

Info

Publication number
GB950896A
GB950896A GB4121761A GB4121761A GB950896A GB 950896 A GB950896 A GB 950896A GB 4121761 A GB4121761 A GB 4121761A GB 4121761 A GB4121761 A GB 4121761A GB 950896 A GB950896 A GB 950896A
Authority
GB
United Kingdom
Prior art keywords
collars
elements
capsule
neutrons
detecting
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
GB4121761A
Inventor
David Campsie Menzies
Robert Brown
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB4121761A priority Critical patent/GB950896A/en
Publication of GB950896A publication Critical patent/GB950896A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T3/00—Measuring neutron radiation
    • G01T3/04—Measuring neutron radiation using calorimetric devices

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

950,896. Detecting neutrons. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 8,1962 [Nov. 17, 1961], No. 41217/61. Heading G6P. A neutron flux monitor comprises two elements which are of similar dimensions and densities but of materials of different neutron sensitivity so as to constitute a detecting element and a reference element, a capsule surrounding the elements to provide a uniform thermal environment for both elements, and a thermocouple for indicating any temperature differential between the two elements. In the drawing two dimensionally identical collars 11, 12 are carried by an alumina rod 13 and mounted in a stainless steel capsule 22 divided into two compartments by a stainless steel disc 14 which acts as a shield to prevent thermal or charged particle radiation passing between the two collars. Collar 11 is of a boron/ aluminium alloy and is heated more by neutrons than by aluminium collar 12, the heating effect of other radiation being substantially the same for both collars. The temperature difference between the two collars is measured by two thermocouples 17,19 connected in series to leads 16 which pass through bores in the rod 13 to bores in the top of the capsule. The capsule is suspended by a wire 27 and may be lowered into a nuclear reactor. The detecting element could contain lithium, cadmium, or nitrogen instead of boron, or, for detecting fast neutrons, could contain beryllium.
GB4121761A 1961-11-17 1961-11-17 Neutron flux monitor Expired GB950896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4121761A GB950896A (en) 1961-11-17 1961-11-17 Neutron flux monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4121761A GB950896A (en) 1961-11-17 1961-11-17 Neutron flux monitor

Publications (1)

Publication Number Publication Date
GB950896A true GB950896A (en) 1964-02-26

Family

ID=10418657

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4121761A Expired GB950896A (en) 1961-11-17 1961-11-17 Neutron flux monitor

Country Status (1)

Country Link
GB (1) GB950896A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266887B (en) * 1964-06-16 1968-04-25 Degussa Device for measuring the neutron flux
US3564246A (en) * 1965-08-05 1971-02-16 Atomic Energy Commission Gamma compensated fission thermocouple
GB2122410A (en) * 1982-06-11 1984-01-11 Kernforschungsanlage Juelich Nuclear reactor having a shutdown device reacting in dependence upon the neutron flux
DE3443720A1 (en) * 1983-12-12 1985-06-20 General Electric Co., Schenectady, N.Y. NEUTRON SENSOR BASED ON THERMOCOUPLE HEATED BY CORE FISSION
CN108398709A (en) * 2017-02-08 2018-08-14 中国辐射防护研究院 A kind of optical fiber radiation probe

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266887B (en) * 1964-06-16 1968-04-25 Degussa Device for measuring the neutron flux
US3444373A (en) * 1964-06-16 1969-05-13 Licentia Gmbh Apparatus and method for constructing apparatus for measurements of neutron flux
US3564246A (en) * 1965-08-05 1971-02-16 Atomic Energy Commission Gamma compensated fission thermocouple
GB2122410A (en) * 1982-06-11 1984-01-11 Kernforschungsanlage Juelich Nuclear reactor having a shutdown device reacting in dependence upon the neutron flux
DE3443720A1 (en) * 1983-12-12 1985-06-20 General Electric Co., Schenectady, N.Y. NEUTRON SENSOR BASED ON THERMOCOUPLE HEATED BY CORE FISSION
US4614635A (en) * 1983-12-12 1986-09-30 General Electric Company Fission-couple neutron sensor
CN108398709A (en) * 2017-02-08 2018-08-14 中国辐射防护研究院 A kind of optical fiber radiation probe

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