Activation of 115Inm by single pulses of intense bremsstrahlung
作者： C. B. Collins , J. A. Anderson , Y. Paiss , C. D. Eberhard , R. J. Peterson
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摘要: A new technique has been recently described for the absolute calibration of intense sources pulsed radiation in 0.2--1.5 MeV range photon energies. An activation technique, it depended upon storage samples irradiating spectrum form populations nuclei excited to isomeric states with lifetimes seconds hours. Described here is use such a calibrated source resolve severe conflicts previous studies reaction /sup 115/In(..gamma..,..gamma..')/sup 115/In/sup m/ through 1078 keV J/sup ..pi../ = (5/2/sup +/ level; this mode traditionally served as archetype (..gamma..,..gamma..') reactions. We report an integrated cross section (18.7 +- 2.7) x 10/sup -2/ cm/sup 2/ no evidence any importance nonresonant channels excitation.
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