2013 Fiscal Year Final Research Report
Development of a real-time solar neutrino measurement device using superconducting detectors
| Project/Area Number |
24654068
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Okayama University |
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Principal Investigator |
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| Research Collaborator |
KIBAYASHI Atsuko 岡山大学, 大学院自然科学研究科, 研究員
YAMADA Yousuke 岡山大学, 大学院自然科学研究科, 修士課程学生(M2)
YUASA Taiki 岡山大学, 大学院自然科学研究科, 修士学生(M2)
YAMAMORI Hirotake 独立行政法人産業技術総合研究所, ナノエレクトロニクス研究部門, 主任研究員 (00358293)
KOHJIRO Satoshi 独立行政法人産業技術総合研究所, ナノエレクトロニクス研究部門, 研究グループ長 (60356962)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 超伝導検出器 / 太陽ニュートリノ / インジウム / 力学的インダクタンス |
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| Research Abstract |
We have developed a Kinetic Inductance Detector (KID) for the real-time measurements of solar neutrinos. The solar neutrinos can be detected using In-115; when a neutrino interacts with In-115, it creates an excited Sn-115 which subsequently decays by emitting two gamma rays (116keV and 497keV) with a half-life of 3.26 micro seconds. The detection of the two gamma rays enable us to unambiguously distinguish the signal and any backgrounds, hence the real-time detection is possible. We have fabricated Nb/Al KIDs with the In target and estimated the sensitivity by measuring a temperature dependence of the KID. We have found our detector has a sufficient sensitivity to detect the solar neutrinos.
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