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The reaction of glass during gamma irradiation in a saturated tuff environment; Part 4, SRL 165, ATM-1c, and ATM-8 glasses at 1E3 R/h and O R/h

Technical Report ·
DOI:https://doi.org/10.2172/137753· OSTI ID:137753

The reaction between tuffaceous groundwater and actinide-doped SRL 165 and PNL 76-68 type glasses in a gamma radiation field has been studied at 90{degree}C for periods up to 278 days. The primary effect of the radiation field was the acidification of the leachate through the production of nitrogen acids. Acidification of the leachate was limited by bicarbonate in the groundwater, for all exposures tested. Nonirradiated experiments were performed to represent the lowest limit of radiation exposure. Both irradiated and nonirradiated experiments were performed with and without a tuff monolith present in the reaction vessel. Neither irradiation nor the presence of tuff had a major effect on the extent of glass reaction as measured by the leachate concentrations of various glass species or analysis of the reacted glass surfaces. This report discusses the results of leaching experiments performed in a gamma radiation field and in the absence of a radiation field. 28 refs., 47 figs., 11 tabs.

Research Organization:
Argonne National Lab., IL (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
137753
Report Number(s):
ANL--90/13; ON: DE90013462
Country of Publication:
United States
Language:
English