Realization and performance of a BGO spectrometer for photons of 10–100 MeV

Abstract An anticoincidence, high-efficiency, BGO gamma spectrometer, designed for energies in the range 10–100 MeV, is presented. The detector performances, measured with photons produced in several capture reactions, are reported and compared with the predictions of a Monte Carlo code, and with performances of a NaI spectrometer of very similar design.