Photostimulated low‐temperature recombination luminescence in γ‐irradiated KCl:Eu 2+  crystals | Zendy

Opyrchal H. | Zendy; Nierzewski K. D. | Zendy

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Photostimulated low‐temperature recombination luminescence in γ‐irradiated KCl:Eu 2+ crystals

Author(s) -

Opyrchal H.,

Nierzewski K. D.

Publication year - 1979

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2220950128

Subject(s) - thermoluminescence , luminescence , excited state , irradiation , atmospheric temperature range , ion , recombination , atomic physics , materials science , analytical chemistry (journal) , chemistry , physics , optoelectronics , nuclear physics , biochemistry , organic chemistry , chromatography , meteorology , gene

A strong, few seconds lasting post‐luminescence due to Eu 2+ emission is excited at 15 K by light flashes in KCl:Eu 2+ crystals coloured by γ‐rays at RT. Within the range of 15 to 70 K the intensity of post‐luminescence varies in inverse proportion to the time and does not depend on temperature. Thermoluminescence glow curves photostimulated at 15 K point to the existence of several glow peaks most of which are due to the thermal activation of trapped‐hole centres of H‐ and V k ‐type. The plausible mechanisms responsible both for post‐luminescence and thermoluminescence as well as the role of Eu 2+ ions are discussed.

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