1.
Appl Radiat Isot
; 57(4): 509-15, 2002 Oct.
Artigo
em Inglês
| MEDLINE
| ID: mdl-12362914
RESUMO
The purpose of this research is the investigation of the 90Zr(n,p)90Y reaction as an alternative method to the traditional fission product based on the 90Sr/90Y generator. The fast neutrons necessary to activate 90Zr are generated through (p,xn) reactions during 33 MeV proton irradiation of natural tungsten or other targets. Since 90Y is a pure beta emitter, the gamma-rays from the 90Zr(n,2n)59Zr reaction were used to quantify the neutron flux incident on the 90Zr sample. Using the simulation code MCNPX (Monte Carlo N-Particle System), the angular and energy distributions of neutrons incident on the Zr target were calculated. Based on the MCNPX neutron flux predictions, the 90Y activity was determined.
2.
Health Phys
; 28(3): 205-7, 1975 Mar.
Artigo
em Inglês
| MEDLINE
| ID: mdl-1112720