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Table 2 Positron trapping modes for PAL spectra of 80GeSe ₂ -20Ga ₂ Se ₃ glasses before and after thermal annealing

From: 'Cold' crystallization in nanostructurized 80GeSe₂-20Ga₂Se₃ glass

Treatment conditions	Positron trapping modes
Treatment conditions	τ _av , ns	τ _b , ns	κ _d , ns	τ ₂ - τ _b , ns	τ ₂ / τ _b	η
Untreated, 0 h	0.290	0.258	0.91	0.17	1.65	0.19
380°C, 10 h	0.291	0.261	0.84	0.17	1.64	0.18
380°C, 25 h	0.291	0.261	0.82	0.17	1.66	0.18
380°C, 50 h	0.292	0.260	0.92	0.16	1.63	0.19
380°C, 80 h	0.283	0.260	0.96	0.16	1.60	0.20
380°C, 100 h	0.291	0.261	1.03	0.14	1.54	0.21

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