TEST RESULTS FROM GAMMA IRRADIATION OF ALUMINUM OXYHYDROXIDES

Fisher, D. ; Westbrook, M. ; Sindelar, R.

Savannah River Site (S.C.)

关键词: Gibbsite;    Aluminium;    Sample Preparation;    Wet Storage;    Irradiation;   

DOI  :  10.2172/1034527
RP-ID  :  SRNL-STI-2011-00602
RP-ID  :  DE-AC09-08SR22470
RP-ID  :  1034527

美国|英语

来源: UNT Digital Library

【 摘 要 】

Hydrated metal oxides or oxyhydroxides boehmite and gibbsite that can form on spent aluminum-clad nuclear fuel assemblies during in-core and post-discharge wet storage were exposed as granular powders to gamma irradiation in a {sup 60}Co irradiator in closed laboratory test vessels with air and with argon as separate cover gases. The results show that boehmite readily evolves hydrogen with exposure up to a dose of 1.8 x 10{sup 8} rad, the maximum tested, in both a full-dried and moist condition of the powder, whereas only a very small measurable quantity of hydrogen was generated from the granular powder of gibbsite. Specific information on the test setup, sample characteristics, sample preparation, irradiation, and gas analysis are described.