Accession Number : AD0675571

Title :   ROENTGENORGRAPHIC EFFECTS IN NEUTRON-IRRADIATED CRYSTALS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Konobeevskii,S. T. ; Butra,F. P.

Report Date : 20 MAR 1968

Pagination or Media Count : 15

Abstract : The paper deals with structural disturbances of a crystal lattice caused by neutron irradiation. Diamond, corundum, silicon, germanium, aluminum, and molybdenum were the objects of investigation. A comparison is made of the increase of lattice constant and the intensity of diffuse scattering in these materials. Special treatment is given to the unusually large expansion of the diamond lattice following irradiation. Neutron irradiation of crystals leads to an increase of lattice constant and causes the appearance of temperature-independent diffuse scattering on x-ray photographs. Annealing leads to a decrease in growth of the parameter and to a gradual attenuation of the effect of diffuse scattering.

Descriptors :   (*CRYSTAL LATTICES, *NEUTRON REACTIONS), X RAY DIFFRACTION, SCATTERING, ANNEALING, DIAMONDS, CORUNDUM, SILICON, GERMANIUM, ALUMINUM, MOLYBDENUM, DAMAGE, RADIATION EFFECTS, USSR

Subject Categories : Radioactiv, Radioactive Wastes & Fission Prod
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE