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Remote Sensing of Nuclear Radiation Leakage by a Direction Finding Detector
https://repo.qst.go.jp/records/61677
https://repo.qst.go.jp/records/6167723d0aeda-c23d-4001-bb7f-078386bd3e72
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2006-07-18 | |||||
| タイトル | ||||||
| タイトル | Remote Sensing of Nuclear Radiation Leakage by a Direction Finding Detector | |||||
| 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 |
Shirakawa, Yoshiyuki
× Shirakawa, Yoshiyuki× et.al× 白川 芳幸 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A monitoring post is the equipment useful for watch of leakage of radiation or radioactive substance from a nuclear facility. This device regularly offers the data of radiation dose rate (Sv/h, Gy/h) and counting rate (cpm, cps). However, only these data are not satisfactory for early discovery of a nuclear accident or an adequate interpretation of abnormal data of dose rate or counting rate around the monitoring post. Then, a direction finding gamma ray detector, which can identify the incident direction of gamma rays, has been developed. This detector is composed of three kinds of scintillators, i.e. NaI(Tl), CsI(Tl), and BGO with a photomultiplier tube. The measurement principle is based on the relative change of photoelectric peak counts made by each scintillator depending on the incident direction. This principle in the middle energy range has already been proven by the experiment using Cs(662keV). Then, here the characteristics of the directional sensitivity of low energy range (ex.I, 364keV) and high energy range (ex. Co, 1250keV) have been evaluated by using Electron Gamma Shower Program (EGS4). As a result, this detector has been confirmed to measure the incident direction in a wide energy range. The commercialization development is now advanced as a new monitoring post. | |||||
| 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 | IEEE主催産業エレクトロニクスに関する国際会議 | |||||
| 発表年月日 | ||||||
| 日付 | 2006-07-13 | |||||
| 日付タイプ | Issued | |||||
