Characterization of spectrometric photon-counting X-ray detectors at different pitches
| Autor: | P. Radisson, P. Ouvrier-Buffet, V. Moulin, M. Jurdit, Loick Verger, A. Brambilla |
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| Přispěvatelé: | Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), MULTIX SA, C/O Thales Electron Devices SA |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
030103 biophysics Photon Materials science 010308 nuclear & particles physics business.industry [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging Detector X-ray detector 01 natural sciences Photon counting Characterization (materials science) Charge sharing 03 medical and health sciences Optics 0103 physical sciences Interposer Spectral resolution business Instrumentation Mathematical Physics |
| Zdroj: | Journal of Instrumentation Journal of Instrumentation, 2017, 12 (09), pp.T09008-T09008. ⟨10.1088/1748-0221/12/09/T09008⟩ Journal of Instrumentation, IOP Publishing, 2017, 12 (09), pp.T09008-T09008. ⟨10.1088/1748-0221/12/09/T09008⟩ |
| ISSN: | 1748-0221 |
| Popis: | International audience; There is growing interest in energy-sensitive photon-counting detectors based on high flux X-ray imaging. Their potential applications include medical imaging, non-destructive testing and security. Innovative detectors of this type will need to count individual photons and sort them into selected energy bins, at several million counts per second and per mm2. Cd(Zn)Te detector grade materials with a thickness of 1.5 to 3 mm and pitches from 800 μm down to 200 μm were assembled onto interposer boards. These devices were tested using in-house-developed full-digital fast readout electronics. The 16-channel demonstrators, with 256 energy bins, were experimentally characterized by determining spectral resolution, count rate, and charge sharing, which becomes challenging at low pitch. Charge sharing correction was found to efficiently correct X-ray spectra up to 40 × 106 incident photons.s−1.mm−2. |
| Databáze: | OpenAIRE |
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