SEARCH FOR NON-YRAST STATES IN RUTHENIUM-98 VIA THE (HELIUM-3,2 NEUTRON PHOTON) REACTION
Abstract
A large number of new states have been observed in ('98)Ru via the (('3)He, 2n(gamma)) reaction. Because of the low binding energy and low mass of ('3)He nuclei, the reaction can be used to populate non-yrast states. Excitation functions, angular distributions, linear polarizations, (gamma)-(gamma) coincidences, and (gamma)-(gamma) directional correlations were measured and used to construct a level scheme for ('98)Ru. Several new techniques were developed for data analysis. The simultaneous analysis of angular distributions and linear polarizations has been shown to be a more powerful tool for making angular momentum assignments than either separately. Together with excitation functions, these experiments did a successful job of predicting spins of many new states. Eighteen of the observed thirty-four states have been observed the first time in this investigation. A rotational model calculation treating the Coriolis term exactly and including a simple residual interaction was performed. The model was successful in predicting the energies and transition properties of many states.
Degree
Ph.D.
Subject Area
Nuclear physics
Off-Campus Purdue Users:
To access this dissertation, please log in to our
proxy server.