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The Thermoluminescence Efficiency of Alumina-Based Ceramic Plate Dosimeter to Carbon-Ion Beams
https://repo.qst.go.jp/records/71749
https://repo.qst.go.jp/records/71749bafcec56-73ce-40c5-b521-38bd785b5c3f
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-06-30 | |||||
| タイトル | ||||||
| タイトル | The Thermoluminescence Efficiency of Alumina-Based Ceramic Plate Dosimeter to Carbon-Ion Beams | |||||
| 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 |
Koba, Yusuke
× Koba, Yusuke× al., et× 古場 裕介 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Purpose: The verifications of the irradiation field or dose distribution in the carbon-ion radiotherapy require the measurements with high spatial resolution, because these distributions are precipitous and complex. The ceramic TLD we investigated was very easy to deal and low-cost device, and with high spatial resolution. In order to use this ceramic TLD in the carbon-ion radiotherapy as the verification tools, we investigated the thermoluminescence efficiency of the ceramic TLD to carbon-ion beams. Methods: In this study, we used the alumina-based ceramic plate containing silicon dioxide and magnesium oxide as TLD. Experiments of carbon-ion-beam irradiation were performed at the Heavy-Ion Medical Accelerator in Chiba (HIMAC) in the National Institute of Radiological Sciences (NIRS). The thermoluminescence of the ceramic TLD was captured using a plate heater and charge coupled device. Results: The thermoluminescence images of the ceramic TLD irradiated by carbon-ion beams were clearly and it showed applicability to the verification of the irradiation fields. The thermoluminescence efficiency was calculated by comparison with output of the ionization chamber. The thermoluminescence efficiency decreased gradually as Bragg peak neared. Conclusion: In this study, we investigated the thermoluminescence responses of the ceramic TLD to carbon-ion beams using HIMAC in NIRS. This detector showed clear thermoluminescence images of carbon-ion irradiation field. But thermoluminescence efficiencies of the ceramic TLD to carbon-ion beams weren't constant in all range, and these were dependent on LET. The LET dependence of the ceramic TLD must be investigated further. And the correction method for thermoluminescence efficiency must be established in order to measure the dose distribution in the carbon-ion radiotherapy |
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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 7th Korea-Japan Joint Meeting on Medical Physics | |||||
| 発表年月日 | ||||||
| 日付 | 2014-09-25 | |||||
| 日付タイプ | Issued | |||||
