1972 年 33 巻 1 号 p. 151-157
Transient formation of F, H and α centers and self trapped excitons has been investigated in KBr crystals by the irradiation of the pulsed electron beam from a Linac (30MeV, 0.8A, 20ns) and a Febetron 706 (0.6MeV, 7000A, 3ns). The α center concentration is at most 1/25 of the F center. The F and H center pair is concluded to be the primary product. The fast growth times of F and H centers, which are shorter than 3ns, suggest that the lowest triplet and singlet states of the trapped exciton do not have any direct participation in the F center formation.
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