Download or read book Resonance Parameters, Capture. Gamma.-rays and Reaction Mechanism in 98 1°°Mo + N written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years the mechanism of the neutron capture reaction has found wide interest due to the detection of ''non-statistical'' effects. Among the most distinct examples for non-statistical effects in resonance neutron capture are the strong p-wave resonances in the Mo isotopes 92Mo and 98Mo. Especially in the case of 98Mo, it has been shown that the large partial radiative widths can be quantitatively explained on the basis of a simple version of the valence model. Like 98Mo, also the neighboring isotope 1°°Mo shows strong p-wave resonances at low neutron energies. Therefore, 1°°Mo provides another interesting test case for the validity of the valence model. Thus neutron resonances in 1°°Mo were studied at the Oak Ridge electron linear accelerator time-of-flight facility. The transmission of two oxide samples (97.4% 1°°Mo) was measured at an 80 m flight path and the neutron capture cross section was measured at 40 m. Resonance analysis yielded parameters of 123 resonances. Capture .gamma.-ray spectra from 11 resolved resonances have been measured with a Ge(Li)-detector at a 10 m flight path. Contrary to the neighboring nuclei, partial radiative widths of strong p-wave resonances are not in agreement with valence model predictions.