Role of Ionization in Radiation Annealing

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"The role of ionization in the phenomenon of 'radiation annealing' of graphite has been studied by using a 1-Mev electron beam. Changes in the c-axis of a sample with a Hanford irradiation of 460 mwd/ct were studied. Two thermal anneals of 4 hours each at 350 degrees C proved sufficient to complete the thermal annealing at this temperature. The samples were then irradiated for 7-1/2 hours at a temperature of 340 degrees C. The samples received an irradiation of 47 microampere-hours, equivalent to ionization to an exposure of 200 mwd/ct in a Hanford reactor. No changes were noted as a … continued below

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13 p. : ill., tables

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McClelland, J. D.; Smith, A. W. & Senkovits, E. J. October 1, 1954.

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"The role of ionization in the phenomenon of 'radiation annealing' of graphite has been studied by using a 1-Mev electron beam. Changes in the c-axis of a sample with a Hanford irradiation of 460 mwd/ct were studied. Two thermal anneals of 4 hours each at 350 degrees C proved sufficient to complete the thermal annealing at this temperature. The samples were then irradiated for 7-1/2 hours at a temperature of 340 degrees C. The samples received an irradiation of 47 microampere-hours, equivalent to ionization to an exposure of 200 mwd/ct in a Hanford reactor. No changes were noted as a result of the electron bombardment. It is concluded that the ionization is ot of major importance in radiation annealing.

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13 p. : ill., tables

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Digitized from microopaque cards (1).

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  • OCLC: 893415603
  • SuDoc Number: Y 3.At 7:22/NAA-SR-1025 (Del.)
  • Report No.: NAA-SR-1025 (Del.)
  • Accession or Local Control No: metadc1250155
  • Archival Resource Key: ark:/67531/metadc1250155

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  • October 1, 1954

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  • Aug. 10, 2021, 7:36 a.m.

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  • Sept. 25, 2024, 3:42 a.m.

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McClelland, J. D.; Smith, A. W. & Senkovits, E. J. Role of Ionization in Radiation Annealing, report, October 1, 1954; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1250155/: accessed April 12, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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