The Effect of Radiation 'Memory' in Alkali-Halide Crystals

Autor:	M. V. Korovkin, V. N. Sal’nikov
Rok vydání:	2017
Předmět:	010302 applied physics Materials science genetic structures 010308 nuclear & particles physics Physics::Optics General Physics and Astronomy Halide Electron Dielectric Radiation Alkali metal 01 natural sciences Molecular physics Ionizing radiation Crystal 0103 physical sciences Luminescence
Zdroj:	Russian Physics Journal. 59:1440-1445
ISSN:	1573-9228 1064-8887
Popis:	The exposure of the alkali-halide crystals to ionizing radiation leads to the destruction of their structure, the emergence of radiation defects, and the formation of the electron and hole color centers. Destruction of the color centers upon heating is accompanied by the crystal bleaching, luminescence, and radio-frequency electromagnetic emission (REME). After complete thermal bleaching of the crystal, radiation defects are not completely annealed, as the electrons and holes released from the color centers by heating leave charged and locally uncompensated defects. Clusters of these “pre centers” lead to electric microheterogeneity of the crystal, the formation of a quasi-electret state, and the emergence of micro-discharges accompanied by radio emission. The generation of REME associated with residual defectiveness, is a manifestation of the effect of radiation “memory” in dielectrics.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::20b8e473ffa49f26b569048d8352b371 https://doi.org/10.1007/s11182-017-0928-7 Zobrazit plný text záznamu Plný text ve formátu PDF