Chapman Ryan K, Voyles Andrew S, Gharibyan Narek, Bernstein Lee A, Bevins James E
Department of Engineering Physics, Air Force Institute of Technology, WPAFB, OH 45433, USA.
University of California, Berkeley, Berkeley, CA 94720, USA.
Appl Radiat Isot. 2021 May;171:109647. doi: 10.1016/j.apradiso.2021.109647. Epub 2021 Feb 16.
The Gd(p,n)Tb excitation function was measured between 4-18 MeV using stacked-target activation at Lawrence Berkeley National Laboratory's 88-Inch Cyclotron. Nine copper and eight titanium foils served as proton fluence monitor foils, using the Cu(p,x)Zn, Ti(p,x)V, and Ti(p,x)Sc monitor standards, respectively. Variance minimization using an MCNP v.6.2 model reduced the systematic uncertainties in proton energy and fluence. A priori predictions of the Gd(p,n) reaction using ALICE, CoH, EMPIRE, and TALYS, as well as the TENDL database, are compared to the experimentally measured values.
