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Absorption cross section measurements for /sup 252/Cf spontaneous fission neutrons (LWBR Development Program)

Technical Report ·
OSTI ID:7075786
Absolute absorption cross sections have been measured for /sup 232/Th and /sup 197/Au for /sup 252/Cf spontaneous fission neutrons. Irradiations were performed in an exceptionally low mass source-foil arrangement, providing a ''pure'' spectrum with few corrections. Calibration of the activation detector was achieved by irradiating identical foils in the National Bureau of Standards (NBS) Standard Thermal Flux. A simple ratio technique was also used to obtain an independent estimate of the relative /sup 232/Th to /sup 197/Au integral cross sections, yielding a value in good agreement with that above. This technique was extended to /sup 181/Ta, /sup 98/Mo, and /sup 63/Cu. 5 tables, 3 figures. (NSA 32: 18672)
Research Organization:
Bettis Atomic Power Lab., Pittsburgh, PA (USA)
OSTI ID:
7075786
Report Number(s):
WAPD-TM-1204
Country of Publication:
United States
Language:
English