| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-11-09 |
| タイトル |
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タイトル |
Development of diode-based row–column multiplexing boards with the TOFPET2 ASIC for clinical TOF-PET systems |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Hangyu Kang
Yoshida Eiji
Akamatsu Go
Yamaya Taiga
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Objective: A multiplexing technique is essential to reduce the cost and signal processing complexity of clinical time-of-flight positron emission tomography (TOF-PET). One critical issue in multiplexing is the degradation of coincidence timing resolution (CTR). In this study, we developed diode-based row-column summing multiplexing boards that can minimize the CTR degradation.Methods: We used fast-LGSO crystals (3.1×3.1×20 mm3) and an 8×8 silicon photomultiplier (SiPM) array. The SiPM signals were multiplexed by using row-column summing multiplexing circuits. For data acquisition, a TOFPET2 ASIC evaluation kit was used. The effects of multiplexing on the detector performance were evaluated with three different diode models and a resistor.Main Results: The CTR was degraded by 8.0% and 19.4% with the diode-based and resistor-based multiplexing, respectively. We achieved an average CTR of 326±8 ps with the expanded multiplexing boards employing an optimal diode model in terms of CTR and cost.Significance: The developed diode-based multiplexing boards will offer a cost-effective solution for clinical TOF-PET development. |
| 書誌情報 |
Physics in Medicine and Biology
巻 70,
号 22,
発行日 2025-11
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| 出版者 |
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出版者 |
IOP |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0031-9155 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1088/1361-6560/ae1789 |
