Development and application of infrared light-emitting scintillator for alpha-particle detector to control irradiation and position

2014 Fiscal Year Final Research Report

• Project/Area Number: 25600131
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: General applied physics
• Research Institution: Kyoto University
• Principal Investigator: TOSAKI Mitsuo 京都大学, 放射性同位元素総合センター, 准教授 (70207570)
• Co-Investigator(Kenkyū-buntansha): TSUNOYAMA Yuichi 京都大学, 放射性同位元素総合センター, 助教 (90314260) ; FUJITA Koji 京都大学, 工学研究科, 准教授 (50314240)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 赤外線発光シンチレーター / マイクロα線源 / Po-210 / 細胞照射 / シングルイオン照射制御 / XY-ステージ / パルスモータ制御

Outline of Final Research Achievements

The purpose of this work is that development and application of an infrared light-emitting scintillator by alpha particles for biologists to study a response to the irradiation of a cell with a conventional device used in bio-lab as a target. This new method enables the biologist to do an in situ experiment on the radiation influence for the cell.
We have developed the device with a micro alpha-source (Po-210) on XY-stage controlled by stepping motors that can set the irradiation at a position desired by the user. The number and the position of irradiated alpha particles have been controlled by using devices of the silicon detector and the infrared PSD. The source position which are controlled by the XY-stage PC, and the detecting single of alpha particles have been successfully developed in the individual components for the final system.

Free Research Field

原子核、原子物理、放射線計測