Prompt gamma rays from fast neutron induced reactions on cerium and chlorine

Abstract Prompt gamma rays of cerium and chlorine were investigated with the FaNGaS (Fast Neutron-induced Gamma-ray Spectrometry) instrument operated at Heinz Maier-Leibnitz Zentrum (MLZ) in Garching. The radiation was emitted from (n,n’), (n,p) (n,α) reactions induced by irradiation a cerium(III) chloride (CeCl 3 ) sample beam fission neutrons. Additionally, polyvinylchloride (PVC, (C 2 H Cl) n irradiated to verify possible interferences between lines chlorine. We identified 87 prompt From these, we assigned 58 (n,n’) reaction (one for 136 Ce, 41 140 Ce 16 142 Ce), 23 (15 35 Cl 8 37 Cl), 5 Cl(n,p) S 1 line Cl(n,α) 32 P reaction. present relative intensities fast-neutron spectrum-averaged partial cross sections aforementioned compare them available literature data. Identification new discussion errors adds important value data found be consistent our results. In addition, counting time 12 h estimate detection limits as mg, respectively.