Study of the phoswich type scintillation fiber detector

• Project/Area Number: 22860082
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Nuclear engineering
• Research Institution: National Institute of Radiological Sciences
• Principal Investigator: KOBA Yusuke 独立行政法人放射線医学総合研究所, 重粒子医科学センター, 研究員 (10583073)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,042,000 (Direct Cost: ¥2,340,000、Indirect Cost: ¥702,000); Fiscal Year 2011: ¥1,456,000 (Direct Cost: ¥1,120,000、Indirect Cost: ¥336,000); Fiscal Year 2010: ¥1,586,000 (Direct Cost: ¥1,220,000、Indirect Cost: ¥366,000)
• Keywords: フォスウィッチ型検出器 / 小型検出器 / フォスウィッチ検出器 / オプティクスファイバ / オプティカルファイバ

Research Abstract

We developed the small phoswich type detector for the measurements of the radiation quality in the heavy ion radiothrapy. The detection part of this detecor consists of the hollow type CaF2 crystal and liquid organic scintillator. And we lead out the scintillation using the optical fiber. This study has shown that this type detector is possible to identify charged particles and secondary gamma rays by the result of the experiment using accelerator. And it has shown that higher energy resolution of this detector is required for the measurement of the precise radiation quality.