Estimation Pre-Equilibrium Particle and Angular Distribution Spectra for the Neutrons Induce Nuclear Reactions on 90Zr Nuclei by using (FKK) Model

Abd Alsatar Khlil Maroof, Et Al

doi:10.17762/turcomat.v12i5.2288

Abstract

Particles pre - equilibrium spectra and angular distribution are calculated by usingFeshbach-Kerman- Koonin (FKK) model with PRECO-2006 code. The angular distribution of the nuclei of nuclear reactions between the nucleus of a target (90Zr) and the tapline of light particles wascalculated by using reactions of the multistep compound (MSC) and of multistep direct (MSD).Isospin, the finite well depth, and shell effects are considered. Byusing [(_40^90)〖Zr〗_50 ] as target material the cross section of [90Zr(n,n)90Zr], [90Zr(n,p)90Y], [90Zr(n,D)89Y], [90Zr(n,T)88Y], [90Zr(n,3He)88Sr] and [90Zr(n,4He)87Sr] reactions were estimated. Values of cross sections estimated are 550, 371, 16.3, 4.55, 0.271 and 2.35 mb/MeV respectively. Also the angular distribution of same nuclear reactions were estimated, and the values of angular distribution are 850, 392, 4.55, 4.55,0.27 and 2.35mb/sr.MeV respectively.

Highlights

Nuclear physics is that part of physics that studies nuclei's construction and interactions[1]
Fig(1.a) represent the [90Zr(n,n)90Zr] nuclear reaction, the results showed for a large range of emission energies, there is a peak of cross section with value (550 mb/MeV) at emission energy (5.5 MeV),this peak is the total contributions of the direct knock component which represent thelargest contribution for cross section while the rest of the contributions as direct nutral,exciton and equilibrium are almost very small close to zero and can be abandoned
Fig(1.c) represent the[90Zr(n,D)89Y]nuclear reaction, the results showed the cross section was calculated by using preco-2006 code at incident neutron energy (25 MeV),the emission spectra have been peaks of cross section at emission energy (7.82 MeV),the clear contributions comes from direct nutral contribution (0.738mb/MeV),exciton primary contribution (13.9mb/MeV), equilibrium primary

Summary

Research Article

Estimation Pre-Equilibrium Particle and Angular Distribution Spectra for the Neutrons. Article History: Received: 11 October 2020; Accepted: 27 December 2020; Published online: 8 February 2021

Introduction

Results and Discussions

Exciton primary sum

Equilibrium secondary