Development of the beam background monitor for the Belle II experiment

2016 Fiscal Year Final Research Report

• Project/Area Number: 26800155
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: NAKAMURA Katsuro 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, 助教 (60714425)
• Research Collaborator: Vitale Livio University of Trieste and INFN Trieste
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: ダイヤモンド検出器 / バックグラウンド計測

Outline of Final Research Achievements

We studied a beam background monitor for the Belle II experiment. For the background monitor, we developed the diamond detector with a high charge-correction-efficiency. Radioactive source measurement and I-V curve measurement were conducted to determine the suitable specification of the diamond detector. And, using the FLUKA simulation output, we succeeded to calibrate between the measured current and the irradiated dose. With commissioning beams of SuperKEKB, we estimated the performance of the developed diamond detectors. As a result, we confirmed excellent performance of the detector, and feasibility to use them as the Belle II background monitoring system.

Free Research Field

素粒子実験用シリコン崩壊点検出器