| Project/Area Number |
25610064
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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 | High Energy Accelerator Research Organization |
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Principal Investigator |
Tajima Osamu 大学共同利用機関法人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 (80391704)
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| Co-Investigator(Renkei-kenkyūsha) |
Kawai Masanori 大学共同利用機関法人 高エネルギー加速器研究機構, 素粒子原子核研究所, 技師 (50391735)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 宇宙マイクロ波背景放射 / CMB / 極低温 / ミリ波 / 電波測定装置 / 電波観測 / 超伝導検出器 / 断熱 / 冷凍機 / 口径 |
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| Outline of Final Research Achievements |
In a field of a high-sensitive radio sensing, e.g. observation of the cosmic microwave background radiation, our main approach for improving the sensitivity of the system is a combination low-temperature detectors (i.e., low noise) and a large aperture (i.e., high photon statistics). A big difficulty of this approach is that the large aperture induces extra thermal radiations, i.e. infra-red radiations, into the low-temperature detectors. We invented a technology to solve this difficulty: Radio-transparent multi-layer insulation, named RT-MLI. The RT-MLI is transparent for the radio, however, it effectively reflects the infra-red radiations. We proofed this technology based on the laboratory tests. We also developed various applications, e.g. prevention of dew condensation in a meteorological atmospheric monitor.
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