Spectral Efficiency and Resolution of Si(Li)-Detectors for Photon Energies between 0.3 keV and 5 keV

F. Riehle; E. Tegeler; B. Wende

doi:10.1117/12.964950

1 January 1986 Spectral Efficiency and Resolution of Si(Li)-Detectors for Photon Energies between 0.3 keV and 5 keV

F. Riehle, E. Tegeler, B. Wende

Proceedings Volume 0733, Soft X-Ray Optics and Technology; (1986) https://doi.org/10.1117/12.964950
Event: Soft X-Ray Optics and Technology, 1987, Berlin, Germany

Abstract

The spectral efficiencies of energy dispersive Si(Li) photon counters have been measured using the storage ring BESSY as a radiometric standard source of extremely low photon flux of the order of 1 photon/(s eV). The detectors were irradiated with white synchrotron radia-tion when the storage ring was operated with only about 5 electrons stored. For energy calibration and measurement of the energy resolution X-ray emission lines excited by a 55-Fe source were used. Towards lower photon energies the efficiency is drastically decreased by the building-up of an ice-layer on the permanently cooled detector. By this surface contamination also the energy resolution of the detector is affected. The performance of detector can be recovered by a warming-up procedure.

Citation Download Citation

F. Riehle, E. Tegeler, and B. Wende "Spectral Efficiency and Resolution of Si(Li)-Detectors for Photon Energies between 0.3 keV and 5 keV", Proc. SPIE 0733, Soft X-Ray Optics and Technology, (1 January 1986); https://doi.org/10.1117/12.964950

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