Thermal-Neutron Capture Cross Section and Resonance Integral for 10.7-Year Krypton-85

C. E. Bemis, Jr.; R. E. Druschel; J. Halperin; J. R. Walton

doi:dx.doi.org/10.13182/NSE72-A22423

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Thermal-Neutron Capture Cross Section and Resonance Integral for 10.7-Year Krypton-85

C. E. Bemis, Jr., R. E. Druschel, J. Halperin, J. R. Walton

Nuclear Science and Engineering / Volume 47 / Number 3 / March 1972 / Pages 371-372

Technical Note / dx.doi.org/10.13182/NSE72-A22423

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The thermal-neutron capture cross section and capture resonance integral for 10.7-year ⁸⁵Kr have been determined in carefully monitored experiments using 99.992% isotopically pure ⁸⁵Kr. Values of 1.66 ± 0.20 b and 1.8 ± 1.0 b for the thermal-neutron cross section and resonance integral, respectively, were derived from the increase in ⁸⁶Kr produced during the irradiation and measured mass spectro-metrically. We conclude from our results that the burnup of radioactive ⁸⁵Kr in power reactors as a possible means of disposal is not feasible.