| Budget Amount *help |
¥70,070,000 (Direct Cost: ¥53,900,000、Indirect Cost: ¥16,170,000)
Fiscal Year 2017: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2016: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
Fiscal Year 2015: ¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2014: ¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2013: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
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| Outline of Final Research Achievements |
We developed the cost effective and low noise ASIC in LAr temperature for the charge readout. The good purity (<0.3ppb) was kept during 3 months with our developed purification system, and the monitor using the ultra-violet scintillation light was also developed. The high voltage system with Cockcroft-Walton gave >30 kV. The FEM and cosmic ray data provided further understandings of this HV system. These R&D were also verified by the 70tons detector of the CERN WA105.
For the charged particle test-beam, we joined the LArIAT (LArTPC In A Test-beam). We accumulated the 1800000 events for pi/K/mu/p/e in the 1 ton LArTPC during 2015-2017. The data is used to understand the feasibility of the future experiments with large LArTPCs as well as the current LArTPC experiments' systematic uncertainties.
With these results, we can consider 100 tons LArTPC experiments in Japan. Our developed ASIC, the software and simulation tools in the LArIAT can be used for other experiments.
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