Large Area reach-through avalanche diodes have been studied for use in room temperature X-ray spectroscopy applications. Gains in the range 10-80 have been measured, for diodes of area 12 and 25 mms2. Resolutions down to about 600 eV FWHM have been obtained for 5.9 keV X-rays. Various factors limiting resolution are discussed. The useful energy range is approximately 1.5 - 20 keV.
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Webb et al. (1976) studied this question.
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