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Inner bremsstrahlung spectrum of /sup 90/Sr and /sup 90/Y in equilibrium

Journal Article · · Phys. Rev. C; (United States)
The shape of the inner bremsstrahlung spectrum accompanying the beta decay of /sup 90/Y was previously reported by Narayana et al. as being very anomalous. We have remeasured this spectrum using a source of /sup 90/Sr in secular equilibrium with /sup 90/Y. The instrumentally distorted spectrum was predicted using the formulas of Ford and Martin in conjunction with a detailed Monte Carlo calculation of the detector response. The spectrometer was low-background, well collimated 7.62 cm by 7.62 cm NaI(Tl) detector, shielded by lead. The geometry was chosen to minimize distortions due to external bremsstrahlung from stopping the ..beta.. particles. The results are in good agreement with the theoretically calculated spectrum, with detour transitions, when the theoretical spectrum is convoluted with the calculated detector response function.
Research Organization:
Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208
OSTI ID:
6616175
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 26:6; ISSN PRVCA
Country of Publication:
United States
Language:
English