| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8040047 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2015 | 4 Pages |
Abstract
In the present work, photochromism of WO3-P2O5 glass under gamma-ray irradiation was reported. As-prepared glass samples with different WO3 content are all optically transparent in the visible wavelength range thanks to the addition of a small amount of oxidizing couple Sb2O3-NaNO3. The photochromic properties are identified by transmission spectra of the glasses before and after irradiation. The results show that the irradiation induced darkening results from the reduction of W6+ to W5+ or W4+. The existence of WO6 clusters in glasses of high WO3 content is proved by XPS, which is the main reason for the obvious photochromic effects. The WO3-P2O5 glass is a promising candidate in gamma-ray sensitive detector.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
Wei Shen, Stefania Baccaro, Alessia Cemmi, Xiaoqing Xu, Guorong Chen,