2022 Fiscal Year Final Research Report
Correlation Polarimeter Camera with Superconducting Circuits for Radio Adaptive Optics
Project/Area Number |
19K03920
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 16010:Astronomy-related
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Research Institution | National Astronomical Observatory of Japan |
Principal Investigator |
Nagai Makoto 国立天文台, 先端技術センター, 特任研究員 (50522877)
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Project Period (FY) |
2019-04-01 – 2023-03-31
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Keywords | 電波望遠鏡 / 超伝導検出器 / 偏波カメラ / 鏡面測定法 / コプレーナ導波路 / 結合器 / 平面アンテナ |
Outline of Final Research Achievements |
Throughout the research period, all the necessary components of the correlation polarimeter were studied individually, and the basic design of the pixel for the correlation polarimeter was completed. New components such as a plane antenna for both linear polarizations with an anti-phase combiner, a delay circuit for the correlation polarimeter, and a high-pass filter connecting the delay circuit and the MKID resonator have all obtained the necessary characteristics through electromagnetic field simulations. The obtained designs were presented in an international conference and a peer-reviewed paper. Although it was not possible to fabricate a prototype polarimeter, we have identified the components for which feedback to the design is desired. We are about to start the fabrication of test components and prototyping of the correlation polarimeter.
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Free Research Field |
電波天文学
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Academic Significance and Societal Importance of the Research Achievements |
ミリ波・サブミリ波帯の電磁波の波面を画像として撮影できるカメラが実現すれば、電波望遠鏡の受信機ビームや光学素子の特性を測定して評価することが、従来よりもずっと高速にできるようになる。これによって、学術的には電波望遠鏡の高性能化・高機能化が見込め、次世代電波望遠鏡の実現を技術的に後押しする。また社会的にも、この波長帯の電磁波のさまざまな応用の可能性を押し拡げられると期待できる。
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