Calculation of bulk charge and electric field profiles in one-open-face coaxial γ-detectors using experimental C-U characteristics

Experimental C-U characteristics of one-open-face coaxial detectors are employed in deriving an analytic expression that describes the distributions of ionized impurity bulk charge e(Na - Nd) and electric field E(r) for arbitrary variations of Na - Nd in the detector volume. As an example, e(Na - Nd) = f(r) and E(r) are calculated for a Ge(Li)-detector whose experimental C-U characteristics is approximated by a power law with exponent two. (author)