High radiation tolerant detector development enabled by the combination of polycrystalline diamond and diamond FET

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13492
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: Nishiguchi Hajime 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (10534810)
• Research Collaborator: HASHIMOTO YOSHINORI 高エネルギー加速器研究機構, 加速器研究施設, 先任技師 (10391749) ; FUJII YUKI 高エネルギー加速器研究機構, 素粒子原子核研究所, 博士研究員 (50775004)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 放射線検出器 / ダイヤモンド検出器 / 半導体検出器 / ビームモニタ / 大強度加速器 / ミューオン

Outline of Final Research Achievements

Thanks to the very high power accelerator such as the MEGA-WATT-class proton machine, prismatic results are expected for the recent high-energy/nuclear experiments. On the other hand, the radiation hardness of particle/radiation detectors is becoming a very important and urgent issue. The diamond-base semiconductor detector has gotten many attentions due to its strong radiation tolerance.
In this research, we aim to operate a diamond detector specialized in only radiation counting, while sacrificing the accuracy of energy measurement, by using an inexpensive polycrystalline diamond instead of mono-crystal diamond which is difficult to manufacture and very expensive. By this idea, we succeeded in developing a new type of beam monitor in a high intensity proton accelerator.

Free Research Field

素粒子実験