Positron-induced Radiophotoluminescence in Ag-doped Glasses

• DOI: 10.18494/sam3688
• Publication Date: 2022-02-17T22:08:00Z
• Authors: Hirokazu Masai; Yuka Yanagida; Hiroki Kawamoto; Yasuhiro Koguchi; Masanori Koshimizu; Masato Yamawaki
• Keywords: 0103 physical sciences; 01 natural sciences

Positron annihilation spectroscopy (PAS) is used for the quantification of cavities in a matrix.Although PAS sometimes considered nondestructive measurement method, it worth investigating interaction positrons with matrix during PAS.Here, we have demonstrated that defects are generated silver-doped phosphate glasses positron and radiophotoluminescence (RPL) observed after irradiation.There linear correlation between irradiation duration RPL intensity glasses.We high dose even conventional thermal annealing at 360 °C 1 h.The formation Ag 2+ species detectable by electron spin resonance (ESR) was confirmed.From concentration ESR-active 2 + species, expected approximately 0.1% cations were changed 5 days irradiation.