Abstract

This paper describes the characteristics of a small (8 mm dia., depletion depth 4 mm) ultra high resolution (fwhm-450 eV at 14 keV and 1.7 keV at 1332 keV) Ge(Li) spectrometer. In particular the following were studied: resolution versus energy, the Fano factor for Ge, the full energy and K X-ray escape efficiency, and the detector linearity. Besides being used to measure singles spectra over the energy region from 6 keV to 2 MeV, the detector was used simultaneously with a high resolution Si(Li) detector to measure coincidences between K α1, K α2 and L X-rays.

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