Abstract
A calculation has been made of the output pulse amplitude obtained from an idealized lithium-drifted detector-amplifier combination under conditions where an incident charged particle generates a charge distribution in the field-free region of the detector which is a general function of position. An expression is derived for the probability P that a hole initially generated at a given position diffuses out of the field-free region as a function of position, bulk lifetime, and surface recombination velocity. For an amplifier with a ``long'' time constant, one obtains directly from P and the initial charge distribution the maximum amplitude of the output pulse. The output pulse amplitude is evaluated for actual charge distributions generated in the detector by incident charged particles. In principle, from measurements with charged particles and the results presented, the depth of the lithium-diffused region and the magnitude of the surface recombination velocity may be determined.
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