Abstract
The performance of germanium detectors and Compton suppression spectrometers is calculated using the Monte Carlo method in the energy range that is of interest for nuclear γ-ray spectroscopy. The calculated properties are: intrinsic peak efficiencies, peak/total and peak/Compton ratios as well as the Compton suppression factor for single γ-rays and high multiplicity γ cascades. The reliability of the calculation is checked by comparison with the observed properties of existing devices. Then, response functions are predicted for new spectrometers. In particular, a new symmetric Compton suppression configuration using three germanium crystals, which is capable of achieving an excellent performance, is proposed. This detector has been constructed and the experimental results are compared with the calculation.
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