| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| 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.
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