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Comparison of PET sensitivity with various scintillation crystals
https://repo.qst.go.jp/records/76864
https://repo.qst.go.jp/records/76864424c2f6d-1df9-4fcf-a345-8fba4b173700
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-09-19 | |||||
| タイトル | ||||||
| タイトル | Comparison of PET sensitivity with various scintillation crystals | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Kang, Hangyu
× Kang, Hangyu× Nishikido, Fumihiko× Tashima, Hideaki× Yamaya, Taiga× Kang, Hangyu× Nishikido, Fumihiko× Tashima, Hideaki× Yamaya, Taiga |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Positron emission tomography (PET) has been evolved with the development of new scintillation crystals such as LYSO and GAGG. The performance of a PET scanner is mainly determined by the characteristics of a scintillation crystal. The aim of this study is to compare the PET sensitivity with various scintillation crystals. In this study, a SIEMENS small animal Inveon PET (inner diameter= 161 mm, axial length= 127 mm) was modeled by using GATE Monte Carlo software (Fig.1). The Inveon PET scanner consists of 4 rings each of which has 16 detectors/ring. The PET detector block consists of 20×20 crystal array each of which has a dimension of 1.5×1.5×10 mm3. An F-18 point source with 1 MBq was placed at the center of the PET FOV and the simulation was performed for 1 s. The simulation was performed with various crystals such as BGO (Zeff=71, ρ=7.13 g/cm3), LSO (Zeff=65, ρ=7.4 g/cm3), LYSO (Zeff=61, ρ=7.20 g/cm3), GSO (Zeff=57, ρ=6.7 g/cm3), GAGG (Zeff=53, ρ=6.63 g/cm3), CsI (Zeff=54, ρ=4.51 g/cm3), and NaI (Zeff=50, ρ=3.67 g/cm3), respectively. The simulated sensitivities of BGO, LSO, LYSO, GAGG, and GSO were 12.44, 9.75, 8.61, 6.15, and 6.03%, respectively (Fig. 1(a)). The BGO resulted in a highest sensitivity and photo-fraction (Fig. 1(b)). The sensitivity of GAGG was 52% lower than that of BGO crystal. In future, the simulation results will be validated by experimental measurements. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 15th Int. SCINT 2019 | |||||
| 発表年月日 | ||||||
| 日付 | 2019-10-01 | |||||
| 日付タイプ | Issued | |||||
