An energy-resolving photon-counting X-ray detector for computed tomography combining silicon-photomultiplier arrays and scintillation crystals
Abstract X-ray photon-counting computed tomography (PCCT) has garnered considerable interest owing to its low-dose administration, high-quality imaging, and material decomposition characteristics. Current commercial PCCT systems employ compound semiconductor photon-counting X-ray detectors, which of...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Communications Engineering |
| Online Access: | https://doi.org/10.1038/s44172-024-00313-1 |
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| author | Kenji Shimazoe Donghwan Kim Moh Hamdan Yosuke Kobayashi Kei Kamada Masao Yoshino Yasuhiro Shoji Kyohei Sakamoto Fabio Acerbi Alberto Gola |
| author_facet | Kenji Shimazoe Donghwan Kim Moh Hamdan Yosuke Kobayashi Kei Kamada Masao Yoshino Yasuhiro Shoji Kyohei Sakamoto Fabio Acerbi Alberto Gola |
| author_sort | Kenji Shimazoe |
| collection | DOAJ |
| description | Abstract X-ray photon-counting computed tomography (PCCT) has garnered considerable interest owing to its low-dose administration, high-quality imaging, and material decomposition characteristics. Current commercial PCCT systems employ compound semiconductor photon-counting X-ray detectors, which offer good energy resolution. However, the choice of materials is limited, and cadmium telluride or cadmium zinc telluride is mostly used. Although indirect radiation detectors can be used as alternatives to compound semiconductor detectors, implementing fine-pitch segmentation in such detectors is challenging. Here we designed an indirect fine-pitch X-ray photon-counting detector by combining miniaturized silicon photomultiplier arrays and fast scintillation crystals, with a pixel size of 250 µm, for future indirect PCCT. The fabricated array detector has the potential to discriminate photon energies with a 27% resolution at 122 keV, 296 µm spatial resolution, and charge-sharing inhibition ability. |
| format | Article |
| id | doaj-art-a23b1681f71f4a68b64d52c8365ba97f |
| institution | OA Journals |
| issn | 2731-3395 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Engineering |
| spelling | doaj-art-a23b1681f71f4a68b64d52c8365ba97f2025-08-20T02:08:24ZengNature PortfolioCommunications Engineering2731-33952024-11-01311910.1038/s44172-024-00313-1An energy-resolving photon-counting X-ray detector for computed tomography combining silicon-photomultiplier arrays and scintillation crystalsKenji Shimazoe0Donghwan Kim1Moh Hamdan2Yosuke Kobayashi3Kei Kamada4Masao Yoshino5Yasuhiro Shoji6Kyohei Sakamoto7Fabio Acerbi8Alberto Gola9Department of Nuclear Engineering and Management, School of Engineering, The University of TokyoDepartment of Nuclear Engineering and Management, School of Engineering, The University of TokyoDepartment of Nuclear Engineering and Management, School of Engineering, The University of TokyoDepartment of Nuclear Engineering and Management, School of Engineering, The University of TokyoTohoku UniversityTohoku UniversityTohoku UniversityDiatrend CorporationFondazione Bruno Kessler (FBK), center for sensors and devices (SD)Fondazione Bruno Kessler (FBK), center for sensors and devices (SD)Abstract X-ray photon-counting computed tomography (PCCT) has garnered considerable interest owing to its low-dose administration, high-quality imaging, and material decomposition characteristics. Current commercial PCCT systems employ compound semiconductor photon-counting X-ray detectors, which offer good energy resolution. However, the choice of materials is limited, and cadmium telluride or cadmium zinc telluride is mostly used. Although indirect radiation detectors can be used as alternatives to compound semiconductor detectors, implementing fine-pitch segmentation in such detectors is challenging. Here we designed an indirect fine-pitch X-ray photon-counting detector by combining miniaturized silicon photomultiplier arrays and fast scintillation crystals, with a pixel size of 250 µm, for future indirect PCCT. The fabricated array detector has the potential to discriminate photon energies with a 27% resolution at 122 keV, 296 µm spatial resolution, and charge-sharing inhibition ability.https://doi.org/10.1038/s44172-024-00313-1 |
| spellingShingle | Kenji Shimazoe Donghwan Kim Moh Hamdan Yosuke Kobayashi Kei Kamada Masao Yoshino Yasuhiro Shoji Kyohei Sakamoto Fabio Acerbi Alberto Gola An energy-resolving photon-counting X-ray detector for computed tomography combining silicon-photomultiplier arrays and scintillation crystals Communications Engineering |
| title | An energy-resolving photon-counting X-ray detector for computed tomography combining silicon-photomultiplier arrays and scintillation crystals |
| title_full | An energy-resolving photon-counting X-ray detector for computed tomography combining silicon-photomultiplier arrays and scintillation crystals |
| title_fullStr | An energy-resolving photon-counting X-ray detector for computed tomography combining silicon-photomultiplier arrays and scintillation crystals |
| title_full_unstemmed | An energy-resolving photon-counting X-ray detector for computed tomography combining silicon-photomultiplier arrays and scintillation crystals |
| title_short | An energy-resolving photon-counting X-ray detector for computed tomography combining silicon-photomultiplier arrays and scintillation crystals |
| title_sort | energy resolving photon counting x ray detector for computed tomography combining silicon photomultiplier arrays and scintillation crystals |
| url | https://doi.org/10.1038/s44172-024-00313-1 |
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