ANALYSIS ON UV-IRRADIATED AND AS GROWN SILICA SAMPLE WITH SYNCHROTRON-RADIATION

Authors
ANEDDA A CARBONARO CM CORPINO R RAGA F
Citation
A. Anedda et al., ANALYSIS ON UV-IRRADIATED AND AS GROWN SILICA SAMPLE WITH SYNCHROTRON-RADIATION, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 141(1-4), 1998, pp. 719-725
Citations number
29
Categorie Soggetti
Instument & Instrumentation","Nuclear Sciences & Tecnology","Physics, Atomic, Molecular & Chemical","Physics, Nuclear
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
141
Issue
1-4
Year of publication
1998
Pages
719 - 725
Database
ISI
SICI code
0168-583X(1998)141:1-4<719:AOUAAG>2.0.ZU;2-Y
Abstract
Optical analysis, including absorption spectra, photoluminescence (PL) and photoluminescence excitation (PLE), has been performed on natural silica sample 'as grown' and UV-irradiated with pulsed KrF excimer la ser (5 eV). By synchrotron radiation source we detected the well known alpha and beta emission bands and their excitation spectra at room te mperature (RT) and at 10 K (LT). Comparing measurements on irradiated and not-irradiated samples, bleaching of these bands is clearly shown. We hypothesize the observed bleaching of PL bands could be partially correlated to the generation of E' absorption band in UV-irradiated si lica sample. (C) 1998 Elsevier Science B.V. All rights reserved.