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Low-Dimensional Semiconducting Materials in Developing Ultra-Fast Scintillators
https://repo.qst.go.jp/records/68351
https://repo.qst.go.jp/records/68351c5df37f0-e763-46c0-b9c8-5df1ed1188ac
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2006-05-29 | |||||
| タイトル | ||||||
| タイトル | Low-Dimensional Semiconducting Materials in Developing Ultra-Fast Scintillators | |||||
| 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 |
Shibuya, Kengo
× Shibuya, Kengo× Inadama, Naoko× Yoshida, Eiji× Yamaya, Taiga× Murayama, Hideo× et.al× 澁谷 憲悟× 稲玉 直子× 吉田 英治× 山谷 泰賀× 村山 秀雄 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | An idea for developing scintillators having both a large light output and a quick response is presented. Usually, some direct-gap semiconductors exhibit sub-nanosecond decaying ultra-fast scintillation components only at a very low temperature. The authors found that the thermal quenching could be effectively prevented by a construction of a low-dimensional quantum confinement system, and practical light outputs were obtained even at room temperature. A comparative study in scintillation properties of two- and three-dimensional semiconducting materials having similar compositions was demonstrated in order to discuss physical effects of the quantum confinement systems. The authors believe that this achievement will play an important role when developing a time-of-flight (TOF)-PET. A crystals of (C6H13NH3)2PbI4 having a multiple quantum well structure exhibited three decay components of 390 ps, 3.8 ns and 16 ns with the ratios of 28%, 29% and 43%, respectively. And the total light output was 11% of that of NaI:Tl at 300K. |
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| 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 | The 4th Japan-Korea Joint Meeting on Medical Physics and The 5th Asia-Oceania Congress of Medical Physics | |||||
| 発表年月日 | ||||||
| 日付 | 2005-10-01 | |||||
| 日付タイプ | Issued | |||||
