Abstract
The resonant scattering of electron bremsstrahlung by an enriched sample of has been studied for photon energies of up to 5 MeV. It provided estimates of the radiative widths for 10 levels. Based on the relative yields at scattering angles of 96° and 126°, unambiguous spin assignments were made to 5 of these levels. Where feasible, the yield measurements were supplemented by self-absorption data and by linear polarization studies. For the strongest excitation in , at 3.436 MeV, the resonance fluorescence experiments led to a assignment and a value meV for the partial width of the ground state transition. The corresponding strength is approximately of the strengths observed for the strongest low-lying transitions in the even-even nuclei. When combined with previous observations for , the result obtained for () indicates that the strengths of the ground state transitions from the lowest states peak at . Yield information on a few levels in and was also obtained.
NUCLEAR REACTIONS bremsstrahlung ; measured and , self-absorption, LP; deduced , , . Enriched target, natural target.
- Received 7 August 1978
DOI:https://doi.org/10.1103/PhysRevC.18.2138
©1978 American Physical Society