Proton energy determination using activated yttrium foils and ionization chambers for activity assay

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: M.A. Avila-Rodriguez, J. Rajander, J.-O. Lill, K. Gagnon, J. Schlesinger, J.S. Wilson, S.A. McQuarrie, O. Solin
Publisher: ELSEVIER SCIENCE BV
Publication year: 2009
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Journal acronym: NUCL INSTRUM METH B
Volume number: 267
Issue number: 10
Start page: 1867
End page: 1872
Number of pages: 6
ISSN: 0168-583X


Abstract

Excitation functions of the (89)Y(p,xn) nuclear reactions were measured up to 18 MeV by the conventional activation method using the stacked-foil technique, and the irradiation of single foils. Activity assays of the irradiated foils were performed via ionization chamber and gamma spectroscopy methods. Activity ratios of the activation products were measured in two different facilities and evaluated for use as a practical and simple method for proton energy determinations. Cross section values measured in this work were compared with published data and with theoretical values as determined by the nuclear reaction model code EMPIRE II. In general, there was a good agreement between the experimental and theoretical values of the cross section data. Activity ratios of the isomeric and ground state of (89)Zr measured via ionization chamber were found to be useful for proton energy determinations in the energy range from 7 to 15 MeV. Proton energies above 13 MeV were accurately determined using the (89g)Zr/(88)Zr and (89g)Zr/(88)Y activity ratios measured via gamma spectroscopy. (C) 2009 Elsevier B.V. All rights reserved.


Keywords

Cyclotrons, Ionization chambers, Monitor reactions, Proton energy determination, Yttrium foils

Last updated on 2019-22-09 at 04:45