Measurement of the temperature dependence of pulse lengths in an n-type   germanium detector
  The temperature dependence of the pulse length was measured for an 18-fold segmented n-type germanium detector in the temperature range of 77-120 K. The interactions of 122 keV photons originating from a Europium-152 source were selected and pulses as observed on the core and segment electrodes were studied. In both cases, the temperature dependence can be well described by a Boltzmann-like ansatz. 
I. Abt, A. Caldwell, J. Liu, B. Majorovits, O. Volynets
nucl-ex hep-ex