Selectivity of directional correlations of gamma rays from oriented nuclear states at moderately high spins
Abstract
Calculations are presented for puremultipole cascades from an aligned initial state of moderately high spin. viz., 10. Pairs of detectors at vertices of an octant in space are used, and the question of selecting a particular assignment of spins and multipolarities from all others is investigated. It is found that for representative conditions of degree of alignment of initial state and quality of data, most of the cascades composed of combinations of dipole, quadrupole and octupole transitions can be distinguished from each other, even including in many cases the order of nonbasic transitions. The number of different cascades considered is 49. Also considered are cases simulating ultrahighprecision data in order to illustrate principles, as well as quite lowprecision data. Considered too, are cases of no alignment of initial spin, as well as the other extreme of only m = 0. A concise review of the results of the general theory of directional correlation of gamma rays from oriented initial states is given.
 Publication:

Nuclear Instruments and Methods in Physics Research A
 Pub Date:
 July 1986
 DOI:
 10.1016/01689002(86)904109
 Bibcode:
 1986NIMPA.247..481D