Radiation damage in magnesium oxide. I. Dose dependence of reactor damage

Autor:	B Henderson, D H Bowen
Rok vydání:	1971
Předmět:	Materials science Magnesium General Engineering General Physics and Astronomy chemistry.chemical_element Crystal growth Condensed Matter Physics Molecular physics symbols.namesake chemistry Vacancy defect Frenkel defect symbols Radiation damage Van der Waals radius Irradiation Saturation (magnetic)
Zdroj:	Journal of Physics C: Solid State Physics. 4:1487-1495
ISSN:	0022-3719
DOI:	10.1088/0022-3719/4/12/005
Popis:	The kinetics of saturation of F+ centre production have been studied in MgO after reactor irradiation. Although both vacancy and interstitial clusters are formed at high neutron dose, saturation does not result from clustering but is more probably caused by spontaneous recombination of vacancies and interstitials when these are separated by less than 18 nearest-neighbour distances. The production of interstitials and vacancies during irradiation results in growth of both the macroscopic and unit-cell dimensions of the crystals. Comparison of these changes suggest that below about 3*1019 nvt Frenkel defects are formed. At the lowest doses (
Databáze:	OpenAIRE
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