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Energy linearity response of CZT detectors to X-rays in the region of the Zn, Cd and Te K-absorption edges: experimental results

✍ Scribed by E.D.C Freitas; João M Cardoso; L.M.P Fernandes; J.A.M Lopes; J.F.C.A Veloso; J.M.F dos Santos

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 128 KB
Volume: 515
Category: Article
ISSN: 0168-9002
DOI: 10.1016/j.nima.2003.06.005

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✦ Synopsis

The response of a cadmium zinc telluride (CZT) detector to X-rays with energies around the Zn, Cd and Te Kabsorption edges was investigated. The energy non-linearity in the detector response at the K-edges is less than 0.1%, within the experimental errors. No abrupt variation in both the w-value and the detector energy resolution was observed at the K-edges, a behaviour consistent with the absence of intrinsic non-linearity effects in CZT. Within the accuracy of our measurements, we conclude that there are no non-linearity effects in CZT semiconductors at the Zn, Cd and Te K-edges.

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