Annealing of neutron damage in graphite irradiated and stored at room temperature.

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Annealing of neutron radiation damage in graphite at the same temperature at which it was irradiated is reported. Highly oriented pyrolytic graphite samples were irradiated to fluences in the range 0.44 to 153 x 10/sup 15//cm/sup 2/ at room temperature using three different neutron sources with average energies of 1.5, 5.5, and 15 MeV, respectively. Following these irradiations, the C/sub 44/ elastic constants of the samples were measured several times over periods up to two years during which time sample temperatures never exceeded 30/sup 0/C. The C/sub 44/ constants were observed to slowly decrease toward their unirradiated values with up ... continued below

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Pages: 17

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Gray, W.J. & Thrower, P.A. January 1, 1979.

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Annealing of neutron radiation damage in graphite at the same temperature at which it was irradiated is reported. Highly oriented pyrolytic graphite samples were irradiated to fluences in the range 0.44 to 153 x 10/sup 15//cm/sup 2/ at room temperature using three different neutron sources with average energies of 1.5, 5.5, and 15 MeV, respectively. Following these irradiations, the C/sub 44/ elastic constants of the samples were measured several times over periods up to two years during which time sample temperatures never exceeded 30/sup 0/C. The C/sub 44/ constants were observed to slowly decrease toward their unirradiated values with up to 40% of the irradiation-induced changes eventually annealing out.

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Pages: 17

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Dep. NTIS, PC A02/MF A01.

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  • Report No.: PNL-2676
  • Grant Number: EY-76-C-06-1830
  • DOI: 10.2172/6317409 | External Link
  • Office of Scientific & Technical Information Report Number: 6317409
  • Archival Resource Key: ark:/67531/metadc1211954

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • January 1, 1979

Added to The UNT Digital Library

  • July 5, 2018, 11:11 p.m.

Description Last Updated

  • Aug. 2, 2018, 2:40 p.m.

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Gray, W.J. & Thrower, P.A. Annealing of neutron damage in graphite irradiated and stored at room temperature., report, January 1, 1979; United States. (digital.library.unt.edu/ark:/67531/metadc1211954/: accessed January 19, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.