Abstract
E′ centers in quartz irradiated by alpha-rays (He+-beam), neutrons, and those produced by gamma-irradiation after crushing as well as in gamma-irradiated silica glass were investigated using cw/pulsed electron spin resonance. Lineshape of E′ centers produced by alpha-rays was similar to that of centers produced by neutrons but different from that of centers produced by gamma-irradiation in silica glass. E′ centers in crushed quartz were localized in amorphous region presumably around dislocations. The obtained phase relaxation times,T 2, are 6.5±0.4 μs (by neutrons), 7.3±0.2 μs (by crushing and gamma-rays) and 18.5±02. μs (in glass) and are compared with the linewidths and the ratios of homogeneous to inhomogeneous broadening obtained from the microwave power dependence.
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Kohno, H., Yamanaka, C., Ikeya, M. et al. Pulsed and cw-ESR study of E′ and Al hole centers in quartz produced by irradiations and crushing. Appl. Magn. Reson. 9, 481–489 (1995). https://doi.org/10.1007/BF03162356
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DOI: https://doi.org/10.1007/BF03162356