Improvement of the energy resolution of CdTe detectors by pulse height   correction from waveform
  Semiconductor detectors made of CdTe crystal have high gamma-ray detection efficiency and are usable at room temperature. However, the energy resolution of CdTe detectors for MeV gamma-rays is rather poor because of the significant hole trapping effect. We have developed a method to improve the energy resolution by correcting the pulse height using the waveform of the signal and achieved 2.0% (FWHM) energy resolution for 662keV gamma-rays. Best energy resolution was achieved at temperatures between -10 degrees C and 0 degrees C. 
T. Kikawa, A. K. Ichikawa, T. Hiraki, T. Nakaya
physics.ins-det hep-ex