GB978209A - Apparatus for measuring the energies of neutrons - Google Patents

Apparatus for measuring the energies of neutrons

Info

Publication number
GB978209A
GB978209A GB4813163A GB4813163A GB978209A GB 978209 A GB978209 A GB 978209A GB 4813163 A GB4813163 A GB 4813163A GB 4813163 A GB4813163 A GB 4813163A GB 978209 A GB978209 A GB 978209A
Authority
GB
United Kingdom
Prior art keywords
neutron
detector
energy
moderator
threshold
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
GB4813163A
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.)
Forschungszentrum Juelich GmbH
Original Assignee
Kernforschungsanlage Juelich GmbH
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 Kernforschungsanlage Juelich GmbH filed Critical Kernforschungsanlage Juelich GmbH
Publication of GB978209A publication Critical patent/GB978209A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
    • H01J47/12—Neutron detector tubes, e.g. BF3 tubes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T3/00—Measuring neutron radiation
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/10—Scattering devices; Absorbing devices; Ionising radiation filters

Landscapes

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

Abstract

978, 209. Detecting neutrons. KERNFORSCHUNGSANLAGE JULICH DES LANDES NORDRHEIN-WESTFALEN-E.V. Dec. 5, 1963 [Dec. 6, 1962], No. 48131/63. Heading G6P. An apparatus for measuring neutron energies comprises a neutron detector surrounded by a moderator, and a removable threshold neutron absorber mounted between the moderator and the detector. The threshold neutron absorber absorbs all neutrons converted by the moderator which have an energy of 0. 4 ev or less. In use, two counts are taken, one with and the other without the threshold neutron absorber fitted; the ratio of the two counts is dependent on the average energy of the neutron flux around the apparatus. Absolute values for the energy may be obtained by calibrating the instrument from a neutron stream of known energy. The detector D is filled with boron trifluoride and is secured to a handle H; it is surrounded by two aluminium jackets G1 G2, which contain a paraffin wax block P coated with a cadmium layer C. The removable threshold neutron absorber A of cadmium fits removably between the detector and the inner jacket.
GB4813163A 1962-12-06 1963-12-05 Apparatus for measuring the energies of neutrons Expired GB978209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK48392A DE1195416B (en) 1962-12-06 1962-12-06 Device for determining the effective energy of fast neutrons

Publications (1)

Publication Number Publication Date
GB978209A true GB978209A (en) 1964-12-16

Family

ID=7224912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4813163A Expired GB978209A (en) 1962-12-06 1963-12-05 Apparatus for measuring the energies of neutrons

Country Status (3)

Country Link
CH (1) CH404816A (en)
DE (1) DE1195416B (en)
GB (1) GB978209A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2374976A (en) * 2001-04-26 2002-10-30 Bnfl Neutron detector units

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2374976A (en) * 2001-04-26 2002-10-30 Bnfl Neutron detector units
GB2374976B (en) * 2001-04-26 2005-06-22 Bnfl Improvements in and relating to neutron detectors

Also Published As

Publication number Publication date
DE1195416B (en) 1965-06-24
CH404816A (en) 1965-12-31

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