WEKO3
アイテム
High-energetic neutron spectrometer onboard aircraft and spacecraft
https://repo.qst.go.jp/records/60400
https://repo.qst.go.jp/records/60400c92bdbaf-3d9e-438e-8651-339dc2e059e3
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2004-06-03 | |||||
| タイトル | ||||||
| タイトル | High-energetic neutron spectrometer onboard aircraft and spacecraft | |||||
| 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 |
Takada, Masashi
× Takada, Masashi× 高田 真志 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In an aircraft and a space station, neutrons, gammas and protons contribute to an exposure dose mainly and a dose equivalent from neutron accounts for half in an aircrafts and over 10% in a space station. Neutron dosimetry is very important for aircrews and astronauts, but neutron date have never been acquired satisfactorily yet, because of its difficulty. We have developed neutron detector to be able to measure neutron spectrum from a few MeV to above 100 MeV on board these crafts for radiation protection. This detector is requested to be safe and compact. This detector consists on the liquid scintillator covered by the slow plastic scintillator. This liquid scintillator keeps high safety and has never attacked the plastic scintillator chemically for over 5 years. Short photomultiplier was developed to be on board crafts. Data acquisition system of pulse shape with fast ADC has been developed. The neutron detection system will be operated with a battery. Experiments for particle discrimination were done at NIRS-cyclotron and HIMAC. This detector can distinguish neutron events from gamma and proton events by using different pulse shapes. Especially, tail component of proton pulse shape produced by the slow plastic scintillator is different from that of neutron. New technique to discriminate neutron pulse shape from proton and gamma has been done by using fitting particle pulse shape. By using this neutron detector and multi-spherical neutron detector, neutron spectra from thermal to over 100 MeV can be measured on board crafts, and this acquired spectra are necessary for radiation protection. |
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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 | 11th International Congress of the International Radiation Protection Association | |||||
| 発表年月日 | ||||||
| 日付 | 2004-05-28 | |||||
| 日付タイプ | Issued | |||||
