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Radiation hardness of organic photodiode detectors for carbon beam irradiation
https://repo.qst.go.jp/records/73060
https://repo.qst.go.jp/records/73060865e2858-524a-4352-8a66-e8eba489bd76
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-11-27 | |||||
| タイトル | ||||||
| タイトル | Radiation hardness of organic photodiode detectors for carbon beam irradiation | |||||
| 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 |
Nishikido, Fumihiko
× Nishikido, Fumihiko× Takada, Eiji× Shikida, Gen× Nitta, Munetaka× Takyu, Sodai× Yamaya, Taiga× 錦戸 文彦× 高田 英治× 鋪田 嚴× 新田 宗孝× 田久 創大× 山谷 泰賀 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Recently, many groups have been developing organic devices such as photodiodes, electroluminescence cells, photovoltaic cells, and transistors as various detection devices. These organic devices are thin, flexible, printable and inexpensive to manufacture. If they can be used in radiation measurements, it is expected that many innovative radiation detectors can be fabricated because of these desirable characteristics. Especially interesting are organic photodiodes (OPDs) that work like conventional Si semiconductor photodiodes. Based on these points, the OPDs are suitable for application as carbon therapy dosimeters. Therefore, we are investigating the OPDs as radiation detectors for heavy ion beam irradiation. In this presentation, we evaluate the radiation hardness of the OPD detectors to the carbon beam irradiation and report our results. \nThe OPD detector structure consisted of layers of IZO/ PEDOT: PSS / PCBM: P3HT / Al. The OPDs were fabricated on 10 mm × 10 mm black ABS boards by spin coating; fabrication was done 3 days before an experiment. Various sizes of the OPD were used in the experiment. We performed the experiment in the PH2 course of the HIMAC at NIRS. The energy of the 12C beam was 290 MeV/u which is typically used in actual carbon therapy. The OPDs were irradiated by the 12C beam that passed through an ion chamber to monitor the number of irradiated particles. The beam intensity was 1.8×109 particles per second. The diameter of the 12C beam was 1 cm. The induced charges of the OPDs by the carbon beam irradiation and dark current components were measured in the experiment. Experimental results showed that the performance degradations of the OPDs by carbon beam irradiation were negligible for irradiation times in this experiment. Finally, we concluded that the radiation hardness of the OPD detector is sufficient for application as dosimeters for carbon beams. |
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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 | IEEE NSS-MIC2018 | |||||
| 発表年月日 | ||||||
| 日付 | 2018-11-14 | |||||
| 日付タイプ | Issued | |||||
