| Project/Area Number |
23654094
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
AKUTSU Tomotada 国立天文台, 光赤外研究部, 助教 (40564274)
TORII Yasuo 国立天文台, 光赤外研究部, 研究技師 (50227675)
TANAKA Nobuyuki 国立天文台, 光赤外研究部, 主任技術員 (60413978)
SATO Shuichi 法政大学, 理工学部, 准教授 (30425409)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 相対論 / 重力（実験） / 重力波 / レーザー干渉計 / 自由落下 |
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| Research Abstract |
We developed a prototype of a repetitive microgravity interferometer for the third-generation gravitational wave detectors. A repetitive microgravity interferometer is a low-frequency gravitational wave detector with repetitively free-falling mirrors whose distance is measured using a laser interferometer. We developed a clamp-release system that is necessary for realization of free fall. We invented a new data analysis method using a matched filter and verified its effectiveness. We also built a prototype detector where two metal spheres repetitively free-fall with a linear motor and the distance of the spheres is measured with a shadow sensor. We operated it, took data, and analyzed the data.
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