| Budget Amount *help |
¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
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| Outline of Final Research Achievements |
A Hybrid Photo-Detector (HPD) has a great potential to improve various physics sensitivities of Hyper-Kamiokande, which is a next generation large water Cherenkov detector. In order to demonstrate the performance for a long period, its usability was evaluated in a 200 ton water Cherenkov detector. At first, the 20 cm HPD was developed and eight of them were tested into the 200 ton water tank for two years. With a successful development of the preamplifier, the largest 50 cm aperture HPD was completed to detect a single photo-electron with high resolutions.
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