Target Mass Dependency of Light Mass Fragment Energy Spectra for Intermediate Energy Proton Induced Reactions

Double differential fragment production cross sections were measured for intermediate energy protons using a specially designed Bragg Curve Counter. Target mass dependency of Lithium and Beryllium energy spectra were obtained by fitting of the equation describing a Maxwellian distribution with a Coulomb barrier effect. Two parameters of the equation, s and T, which corresponds to absolute normalization and temperature of the Maxwellian respectively, show clear dependency on target mass.