Measuring Reactor Neutron Spectra with Threshold Detectors

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Description

The use of threshold detector foils to measure the external neutron spectrum of two reactors is described. The foils employed are Pu236 to measure the total fast flux, U238 for the region above 1.5 Mev, S32 above 2.5 Mev, and Au197 for thermal neutrons. Scintillation counters ae used to determine the activity induce din the detectors. The foil-counting system is calibrated by used a Cockcroft-Walton accelerator as a fast neutron source. The results indicate a fission type spectrum at each reactor.

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17 pages : illustrations

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Grader, Roderick J. September 23, 1960.

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  • Lawrence Radiation Laboratory
    Publisher Info: University of California, Lawrence Radiation Laboratory
    Place of Publication: Livermore, California

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The use of threshold detector foils to measure the external neutron spectrum of two reactors is described. The foils employed are Pu236 to measure the total fast flux, U238 for the region above 1.5 Mev, S32 above 2.5 Mev, and Au197 for thermal neutrons. Scintillation counters ae used to determine the activity induce din the detectors. The foil-counting system is calibrated by used a Cockcroft-Walton accelerator as a fast neutron source. The results indicate a fission type spectrum at each reactor.

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17 pages : illustrations

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Digitized from microopaque cards (1).

Includes bibliographical references (page 9).

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  • OCLC: 935552531
  • SuDoc Number: Y 3.AT 7:22/UCRL-6089
  • Grant Number: W-7405-eng-48
  • Report No.: UCRL-6089
  • Accession or Local Control No: metadc784104
  • Archival Resource Key: ark:/67531/metadc784104

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  • September 23, 1960

Added to The UNT Digital Library

  • March 24, 2021, 8:16 a.m.

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  • June 19, 2024, 5:28 a.m.

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Grader, Roderick J. Measuring Reactor Neutron Spectra with Threshold Detectors, report, September 23, 1960; Livermore, California. (https://digital.library.unt.edu/ark:/67531/metadc784104/: accessed September 10, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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