Photobleaching of radiation induced trapped electrons in neutral and alkaline glasses. Hydrogen atom formation

✍ Scribed by M. Kongshaug; J. Moan; B. Böckmann; H. Høvik

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 405 KB
• Volume: 47
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(77)80012-2

✦ Synopsis

Photomobilization of trapped electrons in 7 M NaCl04-and 9 M NaOH-glass gives rise to trapped hydrogen atoms. This is probably due to the reaction e, + Hz0 -H + OH-. Experiments with an electron scavenger indicate that electrons are not precursors to radiolytically produced hydrogen atoms. It seems that the mobile electrons produceci during pkotobleaching are not slowed down to thermal energy before they react to produce hydrogen atoms, since the yield of the latter species is strongly dependent on the wavelength rji the bleaching light.