IRRADIATION OF THORIUM "W" SLUGS IN MTR A-PIECE POSITIONS
Technical Report
·
OSTI ID:4350179
The recommendations (and supporting calculations) which were presented to the Program Committee in connection with two proposals concerning the irradiation of Th in the MTR are reported. Two columns of Hanford-type slugs can be irradiated in an A-piece for four 24-day cycles in those locations where the maximum unperturbed thermal flux is 2 x 10/sup 14/ and the gamma flux is one watt per gram, providing the cooling-water velocity of 26 ft/sec is maintained. When those A-piece positions are used which are most removed from the active lattice (where the unperturbed thermal flux and gamma flux at the reactor midplane are 0.5 x 10/sup 14/ and 0.2 watt per gram, respectively), with the above mentioned cooling-water velocity, a double column of thorium can be irradiated for any reasonable period as far as operating temperatures and thermal stresses are concerned. However, if it becomes desirable to irradiate these slugs for an indefinite period, other considerations (e.g., the optimum operating time for U/ sup 233/ production and radiation damage to the Th and Al cladding) will dictate the length of the irradiation period. (auth) The exchange of deuterium between HCl and water was studied briefly, using the azeotropic system in a fractionating column. The isotope separation obtained was similar to that obtained by the distillation of water under similar conditions. It has been shown theoretically and practically that the azeotropic system is unfavorable for this chemical exchange. Distillation of the HCl-water azeotrope as a means of separating the isotopes of H/sub 2/ showed no advantage over the distillation of water; a separation factor of the order of l.03 was measured. (auth)
- Research Organization:
- Phillips Petroleum Co. Atomic Energy Div., Idaho Falls, Idaho
- DOE Contract Number:
- AT(10-1)-205
- NSA Number:
- NSA-12-002400
- OSTI ID:
- 4350179
- Report Number(s):
- IDO-16054
- Country of Publication:
- United States
- Language:
- English
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