Research of broadband data link electronics with tolerance to strong radiation and magnetic environment

2015 Fiscal Year Final Research Report

• Project/Area Number: 23740220
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo (2012-2015); High Energy Accelerator Research Organization (2011)
• Principal Investigator: Higuchi Takeo 東京大学, カブリ数物連携宇宙研究機構, 特任准教授 (40353370)
• Research Collaborator: NAKAO Mikihiko 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 (80290857)
• Project Period (FY): 2011-04-28 – 2016-03-31
• Keywords: 放射線耐性 / データ収集系 / ビーム試験実験

Outline of Final Research Achievements

We searched for electronics parts that can be operable in a severe radiation and magnetic environment of a data acquisition electronics for high energy physics experiments.
We took Belle II experiment as the reference of our study. We bombarded background gamma rays and neutrons of the 10-year equivalent Belle II operation to several products of FPGAs, optical transceivers, regulators, etc. We identified some robust parts quantitatively for the long Belle II operation and published the results in a journal. We also identified a standard-design electronics will operate normally in a strong (~1T) magnetic field.
We extended our research to a radiation-tolerant detector rather than the electronics. We irradiated 50-year equivalent gamma rays to a vertex detector. We found sensor position distortion in the detector from the irradiation was negligible. We also found the mechanical strength of a thermal insulator and the peel strength of standard glue were not degraded by it.

Free Research Field

素粒子物理学実験