Title :
Hydrogen and its radiation effects in quartz crystals
Author_Institution :
Nat. Phys. Lab., New Delhi, India
Abstract :
Hydrogen trapped at numerous hydroxyl defects in quartz lattice serves to compensate the electron excess defects of trivalent aluminum during irradiation. We have measured near infrared (region 3100-3700 cm -1) absorption in optical samples of quartz at 77 K in as-grown crystals and upon electron irradiation at 77 K before and after 300 K-irradiation. The spectral changes have been utilized to measure the concentration of various Al-related defect centers in quartz
Keywords :
aluminium; electron beam effects; hydrogen; impurity absorption spectra; infrared spectra; quartz; 300 K; 3100 to 3700 cm-1; 77 K; SiO2:Al,H; aluminum defect center; electron irradiation; hydrogen trapping; hydroxyl defect; near infrared absorption; quartz crystal; Aluminum; Crystalline materials; Crystallization; Crystals; Electromagnetic wave absorption; Electron traps; Hydrogen; Impurities; Protons; Radiation effects;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841420
