Radiation damage by $sup 252$Cf fission fragments and alpha particles

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Rates of atom displacement and helium injection in materials exposed to $sup 252$Cf fission fragments and alpha particles were calculated to establish the potential for use of $sup 252$Cf sources for radiation damage studies. Maximum displacement rates of about 10$sup -6$ dpa/sec at the surface of typical targets exposed to a $sup 252$Cf fission fragment source were comparable to those experienced by materials in a fast breeder reactor or in a controlled thermonuclear reactor (CTR) first wall, though much lower than the displacement rates achieved using particle accelerators. Helium was concurrently accumulated at a rate of 3 x 10$sup -4$ ... continued below

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20 p.

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Gould, T. H., Jr. & McDonell, W. R. January 1, 1975.

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  • Savannah River Laboratory
    Publisher Info: Du Pont de Nemours (E.I.) and Co., Aiken, S.C. (USA). Savannah River Lab.
    Place of Publication: Aiken, South Carolina

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Rates of atom displacement and helium injection in materials exposed to $sup 252$Cf fission fragments and alpha particles were calculated to establish the potential for use of $sup 252$Cf sources for radiation damage studies. Maximum displacement rates of about 10$sup -6$ dpa/sec at the surface of typical targets exposed to a $sup 252$Cf fission fragment source were comparable to those experienced by materials in a fast breeder reactor or in a controlled thermonuclear reactor (CTR) first wall, though much lower than the displacement rates achieved using particle accelerators. Helium was concurrently accumulated at a rate of 3 x 10$sup -4$ atom ppM/sec at the target surface, yielding a He/ displacement ratio 10$sup 3$ times that produced in the fast breeder reactor materials, but only about 20 times that produced in the CTR materials. These comparisons suggest that $sup 252$Cf fission fragment sources may find useful applications in studies of effects of high-He content on radiation damage in CTR materials. (auth)

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20 p.

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Dep. NTIS

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  • International conference on radiation effects and tritium technology for fusion reactors, Gatlinburg, Tennessee, USA, 1 Oct 1975

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  • Report No.: DP-MS--75-43
  • Report No.: CONF-751026--18
  • Grant Number: AT(07-2)-1
  • Office of Scientific & Technical Information Report Number: 4182949
  • Archival Resource Key: ark:/67531/metadc863973

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1975

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 12, 2017, 2:59 p.m.

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Gould, T. H., Jr. & McDonell, W. R. Radiation damage by $sup 252$Cf fission fragments and alpha particles, article, January 1, 1975; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc863973/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.