Dosimetric characterization of CdZnTe radiation detectors under electron-beam irradiation

Chansun Park, Jiwon Seo, Sangsu Kim, Hyojung Kim, Jung-Yeol Yeom and Shinhaeng Cho

PLOS ONE, 2026, vol. 21, issue 6, 1-13

Abstract: With the growing complexity of modern radiotherapy, the demand for dosimeters capable of delivering real-time, high-resolution, and reliable measurements has grown significantly. Although cadmium–zinc–tellurite (CZT) detectors have emerged as potential solutions to this growing demand, the lack of comprehensive characterization data for these detectors deters their application in clinical electron-beam dosimetry, especially for high-precision tasks such as small-field and point-dose dosimetry. In this study, we systematically characterized CZT detectors, emphasizing the performance trade-offs associated with detector thickness for therapeutic electron-beam dosimetry. The performance of two CZT detectors (6 × 6 mm²), with thicknesses of 5 and 8 mm, was evaluated using a clinical linear accelerator (LINAC) over an electron energy range of 6–18 MeV. Both detectors demonstrated stable baseline performance, including proportional dose linearity (R² > 0.997), dose-rate independence, and excellent long-term stability (

Date: 2026
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0349698

DOI: 10.1371/journal.pone.0349698

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