Displacement cascades in diatomic materials

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Description

A new function, the specified-projectile displacement function p/sub ijk/ (E), is introduced to describe displacement cascades in polyatomic materials. This function describes the specific collision events that produce displacements and hence adds new information not previously available. Calculations of p/sub ijk/ (E) for MgO, Al/sub 2/O/sub 3/ and TaO are presented and discussed. Results show that the parameters that have the largest effect on displacement collision events are the PKA energy and the mass ratio of the atom types in the material. It is further shown that the microscopic nature of the displacement events changes over the entire recoil energy ... continued below

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Pages: 5

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Parkin, D.M. & Coulter, C.A. January 1, 1981.

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Description

A new function, the specified-projectile displacement function p/sub ijk/ (E), is introduced to describe displacement cascades in polyatomic materials. This function describes the specific collision events that produce displacements and hence adds new information not previously available. Calculations of p/sub ijk/ (E) for MgO, Al/sub 2/O/sub 3/ and TaO are presented and discussed. Results show that the parameters that have the largest effect on displacement collision events are the PKA energy and the mass ratio of the atom types in the material. It is further shown that the microscopic nature of the displacement events changes over the entire recoil energy range relevant to fusion neutron spectra and that these changes are different in materials whose mass ratio is near one than in those where it is far from one.

Physical Description

Pages: 5

Notes

NTIS, PC A02/MF A01.

Source

  • Fusion reactor materials meeting, Seattle, WA, USA, 9 Aug 1981

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  • Other: DE81028777
  • Report No.: LA-UR-81-2161
  • Report No.: CONF-810831-8
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 6213461
  • Archival Resource Key: ark:/67531/metadc1114317

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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.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 1981

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

Description Last Updated

  • March 23, 2018, 1:31 p.m.

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Parkin, D.M. & Coulter, C.A. Displacement cascades in diatomic materials, article, January 1, 1981; United States. (digital.library.unt.edu/ark:/67531/metadc1114317/: accessed April 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.