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Title: FFTF (Fast Flux Test Facility) cobalt test assembly results

Conference ·
OSTI ID:6814653

A cobalt test assembly containing yttrium hydride pins for neutron moderation was irradiated in the Fast Flux Test Facility during Cycle 9A for 137.7 equivalent full power days at a power level of 291 MW. The 36 test pins consisted of a batch of 32 pins containing cobalt metal to produce Co-60, and a set of 4 pins with europium oxide to produce Gd-153, a radioisotope used in detection of the bone disease Osteoporosis. Post-irradiation examination of the cobalt pins determined the Co-60 produced with an accuracy of about 5%. The measured Co-60 spatially distributed concentrations were within 20% of the calculated concentrations. The assembly average Co-60 measured activity was 4% less than the calculated value. The europium oxide pins were gamma scanned for the europium isotopes Eu-152 and Eu-154 to an absolute accuracy of about 10%. The measured europium radioisotope and Gd-153 concentrations were within 20% of calculated values. In conclusion, the hydride assembly performed well and is an excellent vehicle for many Fast Flux Test Facility isotope production applications. The results also demonstrate that the calculational methods developed by the Westinghouse Hanford Company are very accurate. 4 refs., 3 figs., 1 tab.

Research Organization:
Westinghouse Hanford Co., Richland, WA (USA)
DOE Contract Number:
AC06-87RL10930
OSTI ID:
6814653
Report Number(s):
WHC-SA-0292; CONF-880546-36; ON: DE89001113
Resource Relation:
Conference: International conference on nuclear data for science and technology, Mito, Japan, 30 May 1988; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English