Integrated Cross Sections forReactions
- 20 July 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 159 (4), 953-954
- https://doi.org/10.1103/physrev.159.953
Abstract
Integrated cross sections for the photoproduction of and from have been measured. A single sample was activated during a 10-minute 137-MeV bremsstrahlung bombardment by the NBS Linac, and rays from the daughter products was measured with a Ge(Li) spectrometer over a two-month period to obtain relative yields. The yield data were used along with the established () integrated cross section and a calculated thick-target bremsstrahlung spectrum to derive integrated cross sections as follows: (168±25), (88±22), (55±16), (66±23), (31±12), (10.7±5.9), (5.7±3.4), (8.0±2.4), (3.8±1.3), (3.4±1.3), (15.3±8.4), and (1.62±.97) MeV mb. Evidence is also presented for an 11.5-h isomeric state in .
Keywords
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