A study of the 90Zr(n,d)89Y reaction.

Abstract

A study has been made of the 90 Zr(n,d) 89 Y reactlion at an

incident neutron energy of 22 MeV. The experimental

aspect of the study was performed at the Van der Graaf

facility at the National Accelerator Centre, using a

particle spectrometer developed by K Bharuth-Ram and

W R McMurray for the study of neutron-induced charged-particle

emissions. The spectrometer, which consists of

a telescope of three multiwire proportional counters and

a curved plastic scintillator, permits the simultaneous

accumulation of data over an angular range of 80°. Solid-angle-

calculations have been performed to correct for the

effect of the geometry of the system on the angular

distribution of the cross-sections. A review has been made

of the shell model of the nucleus, the optical potential model

and the distorted waves method (or DWBA) for the analysis

of direct nuclear reactions. A distorted-waves method

analysis of the reaction is performed with the code DWUCK 4

and the resulting angular distribution of the various

cross-sections are compared with the experimentally obtained

data. ThIs comparison produces spectroscopic factors which

are used to perform some analysis of the nuclear structure

of the 90 Zr nucleus.