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arXiv · 1111.1711

Improvement of the energy resolution of CdTe detectors by pulse height correction from waveform

T. Kikawa·A. K. Ichikawa·T. Hiraki·T. Nakaya
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Abstract

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.

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T. Kikawa, A. K. Ichikawa, T. Hiraki, T. Nakaya. 2011-11-07. Improvement of the energy resolution of CdTe detectors by pulse height correction from waveform. https://arxiv.org/abs/1111.1711

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