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2011 Fiscal Year Final Research Report

Development of Laboratory Calibration System for CMB Polarization Detectors, and Search for CMB Polarization Components Originated from Primordial Gravitational Waves.

Research Project

  • PDF
Project/Area Number 21740205
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

HASEGAWA Masaya  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, 助教 (60435617)

Project Period (FY) 2009 – 2011
Keywords宇宙背景放射 / インフレーション / 原始重力波 / 偏光 / 検出器較正
Research Abstract

The main goals of this study are development of laboratory calibration system for Cosmic Microwave Background(CMB) polarization detectors, and search for the CMB polarization pattern originated from the primordial gravitational waves(B-modes) by QUIET experiment.
We successfully developed a novel calibration system with cryogenically-cooled loads, which provides in the laboratory a load condition similar to the actual observation, and we showed this system can generate polarized signals whose amplitude and angle are well controlled. We search for the B-modes with QUIET 43GHz data, and set an upper limit on the amplitude of r<2.2 at 95% C. L. This is one of the stringent limit to date.

  • Research Products

    (13 results)

All 2012 2011 2010 2009 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (8 results) Remarks (2 results)

  • [Journal Article] Ethernet-Based DAQ system for QUIET-II Detectors2012

    • Author(s)
      M. Nagai, K. Ichidoshiro, T. Higuchi, M. Ikeno, M. Hasegawa, M. Hazumi, O. Tajima, M. Tanaka, T. Uchida
    • Journal Title

      Journal of Low Temperature Physics

      Volume: 169 Pages: 689-691

    • Peer Reviewed
  • [Journal Article] Calibration System with Cryogenically-Cooled Loads for CMB Polarization Detectors2011

    • Author(s)
      M. Hasegawa, O. Tajima, Y. Chinone, M. Hazumi, K. Ishidoshiro, M. Nagai
    • Journal Title

      Rev. Sci. Instrum

      Volume: 82 Pages: 054501

    • Peer Reviewed
  • [Journal Article] First Season QUIET Observations : Measurements of CMB Polarization Power Spectra at 43 GHz in the Multipole Range 25<=ell<=4752011

    • Author(s)
      QUIET Collaboration : C. Bischoff, A. Brizius, I. Buder, Y. Chinone, K. Cleary, R. N. Dumoulin, A. Kusaka, R. Monsalve, S. K. Nass, L. B. Newburgh, R. Reeves, K. M. Smith, I. K. Wehus, J. A. Zuntz, J. T. L. Zwart, L. Bronfman, R. Bustos, S. E. Church, C. Dickinson, H. K. Eriksen, P. G. Ferreira, T. Gaier, J. O. Gundersen, M. Hasegawa, M. Hazumi, K. M. Huffenberger, M. E. Jones, P. Kangaslahti, D. J. Kapner, C. R. Lawrence, M. Limon, J. May, J. J. McMahon, A. D. Miller, H. Nguyen, G. W. Nixon, T. J. Pearson, L. Piccirillo, S. J. E. Radford, A. C. S. Readhead, J. L. Richards, D. Samtleben, M. Seiffert, M. C. Shepherd, S. T. Staggs, O. Tajima, K. L. Thompson, K. Vanderlinde, R. Williamson, B. Windtein
    • Journal Title

      The Astrophysics Journal

      Volume: 741 Pages: 111

    • Peer Reviewed
  • [Presentation] Calibration System with Cryogenically-Cooled Loads for CMB Polarization detectors2011

    • Author(s)
      長谷川雅也
    • Organizer
      14^<th> International Workshop on Low Temperature Detectors
    • Place of Presentation
      ハイデルベルク(ドイツ)
    • Year and Date
      20110801-05
  • [Presentation] Calibration System with Cryogenically-Cooled Loads for QUIET-II Detectors2011

    • Author(s)
      長谷川雅也
    • Organizer
      Technology and Instrumentation in Particle Physics in 2011
    • Place of Presentation
      シカゴ(米国)
    • Year and Date
      20110609-14
  • [Presentation] QUIET実験: Null復調データを用いたWバンドデータ解析の現状2011

    • Author(s)
      長谷川雅也
    • Organizer
      日本天文学会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2011-09-22
  • [Presentation] QUIET Phase-IIに向けた偏光検出器開発の現状2011

    • Author(s)
      長谷川雅也
    • Organizer
      日本物理学会
    • Place of Presentation
      新潟大学(震災のため、講演予稿集を持って発表となす。)
    • Year and Date
      2011-03-25
  • [Presentation] QUIET実験の初期観測結果(4)-データ解析:時系列データの処理とマップ作成-2011

    • Author(s)
      長谷川雅也
    • Organizer
      日本天文学会
    • Place of Presentation
      筑波大学(震災のため、講演予稿集を持って発表となす。)
    • Year and Date
      2011-03-18
  • [Presentation] QUIET-IIに向けた偏光検出器テストシステムの開発2010

    • Author(s)
      長谷川雅也
    • Organizer
      日本物理学会
    • Place of Presentation
      九州工業大学
    • Year and Date
      2010-09-13
  • [Presentation] QUIET実験における2008年-2009年のCMB偏光観測2010

    • Author(s)
      長谷川雅也
    • Organizer
      日本物理学会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-20
  • [Presentation] QUIET実験Wバンド観測の現状報告2009

    • Author(s)
      長谷川雅也
    • Organizer
      日本物理学会
    • Place of Presentation
      甲南大学
    • Year and Date
      2009-09-13
  • [Remarks]

    • URL

      http://cmb.kek.jp

  • [Remarks]

    • URL

      http://cbr.kek.jp

URL: 

Published: 2013-07-31  

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