Abstract
The isothermal bleaching of γ-irradiated glass was studied at elevated temperatures (280-340 °C) by real-time in situ optical microspectroscopy for the first time. The study was performed on γ-irradiated (0.83 and 1.99 MGy) International Simple Glass (ISG) borosilicate nuclear waste simulant made by Mo-SCI Corporation (Rolla, MO, USA). The current investigation proposes real-time optical transmission methodology for the activation energy assessment of isothermal bleaching of γ-irradiated glass. The method is based on robust quantification of the Urbach energy decay rates and yields similar activation energies for both doses within ∼0.24-0.26 eV.
| Original language | English |
|---|---|
| Pages (from-to) | 515-520 |
| Number of pages | 6 |
| Journal | ACS Physical Chemistry Au |
| Volume | 3 |
| Issue number | 6 |
| State | Published - Jul 26 2023 |
Scopus Subject Areas
- Chemistry (miscellaneous)
- Computer Science Applications
- Physical and Theoretical Chemistry
- Computational Theory and Mathematics
Keywords
- activation energy
- borosilicate glass
- gamma radiation
- in situ spectroscopy
- thermal processing