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Research and Development of Superconduting Tunnel Junctions for X-ray Astronomy

Research Project

Project/Area Number 08554002
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Astronomy
Research InstitutionRIKEN (The Institute of Physical and Chemical Research)

Principal Investigator

SHIMIZU Hirohiko  RIKEN, Advanced Computing Center, Researcher, 情報基盤研究部・イメージ情報技術開発室, 研究員 (50249900)

Co-Investigator(Kenkyū-buntansha) OKU Takayuki  RIKEN, Advanced Computing Center, Postdoctoral Researcher, 情報基盤研究部・イメージ情報技術開発室, 基礎科学特別研究員 (10301748)
OTANI Chiko  RIKEN, Advanced Computing Center, Contract Researcher, 研究基盤ツール開発推進グループ, 研究協力員(研究員) (50281663)
SATO Hiromi  RIKEN, Advanced Computing Center, Postdoctoral Researcher, 情報基盤研究部・イメージ情報技術開発室, 基礎科学特別研究員 (20300874)
KAWAI Kazuhiko  RIKEN, Advanced Computing Center, Contract Researcher, 研究基盤ツール開発推進グループ, 研究協力員(研究員) (00312265)
IKEDA Tokihiro  RIKEN, Advanced Computing Center, Postdoctoral Researcher, 情報基盤研究部・イメージ情報技術開発室, 基礎科学特別研究員 (80301745)
高田 進  埼玉大学, 工学部, 教授 (80282424)
前畑 京介  九州大学, 工学部, 助教授 (30190317)
石橋 健二  九州大学, 工学部, 教授 (00159766)
加藤 博  理化学研究所, 宇宙放射線研究室, 専任技師(研究職)
松岡 勝  理化学研究所, 宇宙放射線研究室, 主任研究員 (30013668)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥12,400,000 (Direct Cost: ¥12,400,000)
Fiscal Year 1998: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1997: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1996: ¥8,200,000 (Direct Cost: ¥8,200,000)
KeywordsSuperconduting Tunnel Junction / X-ray Detector / Cryogenic Detector
Research Abstract

The superconduting tunnel junction is a low temperature detector which can be operated at relatively higher temperatures below IK. It is a candidate of general purpose radiation detector of the next generation. In this project, the fabrication technique of the superconduting tunnel junctions with a good quality and reproducibility is studied together with the development of readout circuits which transmit electric signals from the junctions located at low temperatures to data acquisition system at room temperature.
The superconduting tunnel junctions for X-ray detection have been developed using a special processing line of RIKEN. The layer structure of the junctions was a pentalayer of Nb/Al/AlOx/Al/Nb deposited on an aluminum-oxide buffer layer on silicon and sapphire substrates. The leak current across the tunnel barrier was suppressed by improving the technique to oxidize the side of the junction under oxygen plasma. Consequently, the leak current was successfully suppressed more than one order of magnitude with a good reproducibility. The response of the junction to 5.9 keV X-rays was measured for various dimensions of junctions of 20μm×20μm, 100μm×100μm, 200μm×200μm, 500μm×500μm. X-ray signals were observed in all cases and the best energy resolution reached 41 eV. The readout electronics was also improved using semiconductor electronics and superconducting electronics. The techniques to realize superconducting X-ray detection system were studied and developed in this project.

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (32 results)

All Other

All Publications (32 results)

  • [Publications] W. Ootani, T. Ikeda, H. Kato, K. Kawai, H. Miyasaka, T. Oku, C. Otani, H. Sato, H. M. Shimizu, Y. Takizawa, H. Watanabe他4名: "Development of X-ray Detectors Based on Nb/Al/AlOx/Al/Nb Superconducting Tunnel Junctions"Nuclear Instruments & Methods in Physics Research Section A. (出版中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T .Oku, C. Ikeda, H. Kato, K. Kawai, H. Miyasaka, W. Ootani, C. Otani, H. Sato, H. M, Shimizu, Y. Takizawa, H. Watanabe他4名: "High Resolution X-ray Detectors Based on Superconducting Tunnel Junctions with SQUID Readout"Nuclear Instruments & Methods in Physics Research Section A. (出版中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H. Sato, T. Ikeda, H. Kato, K. Kawai, H. Miyasaka, T. Oku, W. Ootani, C. Otani, H. M, Shimizu, Y. Takizawa, H. Watanabe他4名: "Development of Superconducting Tunnel Junctions with Al Trapping Layers for X-ray Detectors"Proceeding of 4th European Conference on Applied Superconductivity. (出版中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Ikeda,H. Kato,K. Kawai, H. Miyasaka, T. Oku, W. Ootani, C. Otani, H. Sato, H. M, Shimizu, Y. Takizawa, H. Watanabe他4名: "A Compact High-Resolution X-ray Detector System Using STJ and a SQUID Amplifier"Proceeding of 4th European Conference on Applied Superconductivity. (出版中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] C. Otani, T. Ikeda, H. Kato, K. Kawai, H. Miyasaka, T. Oku, W. Ootani, H. Sato, H. M, Shimizu, Y. Takizawa, H. Watanabe他4名: "Properties of Substrate Phonon Events in Superconducting Tunnel Junctions Induced by X-ray Absorption"Japanese Journal of Applied Physics. (出版中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H. Sato, T. Ikeda, H. Kato, K. Kawai, H. Miyasaka, T. Oku, W. Ootani, C. Otani, H. M, Shimizu, Y. Takizawa, H. Watanabe他4名: "Development of Superconducting Tunnel Junctions with an Aluminium-Oxide Insulation Layer for X-ray Detection"IEEE Transaction on Applied Superconductivity. 9. 4475-4478 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Kishimoto, M,Ukibe, K.Maehata, M.Katagiri, K.Ishibashi, H.M.Shimizu, M.Nakazawa, M.Kurakado and T.Nakashima: "Characteristics of Nb/Al-AIOx/Al/Nb Tunnel Junction for X-rays of 5 to 15 keV"Czech. J. Phys.. 46 suppl. Pt.S2. 661 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.M.Shimizu, T.Ebisuzaki, H.Kato, T.Ikeda, K.Kawai, M.Matsuoka, H.Miyasaka, T.Oku, C.Otani, H.Sato and H.Watanabe: "Superconduting Tunnel Junctions as General Purpose Detectors"Jpn. J. Appl. Phys.. Suppl.37-2. 61 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.M.Shimizu, H.Sato, T.Oku, C.Otani, T.Ikeda, H.Kato, H.Watanabe, K.Kawai, H.Akoh, H.Nakagawa and M.Aoyagi: "Superconducting Radiation Detector"RIKEN Review. 18. 3 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Sato, T.Ikeda, H.Kato, K.Kawai, H.Miyasaka, T.Oku, W.Ootani, C.Otani, H.M.Shimizu, H.Watanabe, H.Nakagawa, H.Akoh, M.Aoyagi, T.Taino, K.Inaba and Y.Kino: "Development of Superconduting Tunnel Junctions with an Aluminum-Oxide Insulation Layer for X-ray Detection"IEEE Trans. Appl. Supercond. 9. 4475 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Ikeda, H.Kato, K.Kawai, H.Miyasaka, T.Oku, W.Ootani, C.Otani, H.Sato, H.M.Shimizu, H.Watanabe, H.Nakagawa, H.Akoh, M.Aoyagi and T.Taino: "Development of Compact System for High-resolution X-ray Detection with a SQUID Amplifier"IEEE Trans. Appl. Supercond. 9. 4475 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Watanabe, C.Otani, T.Ikeda, H.Kato, K.Kawai, H.Miyasaka, T.Oku;W.Ootani, H.Sato, H.M.Shimizu, H.Akoh, M.Aoyagi and H.Nakagawa: "Development of 4K GaAs Charge-Sensitive Preamplifier for the Readout of STJ X-ray Signals"RIKEN-STJ-004. (unpublished).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] W.Ootani, T.Ikeda, H.Kato, K.Kawai, H.Miyasaka, T.Oku, C.Otani, H.Sato, H.M.Shimizu, H.Watanabe, H.Nakagawa, H.Akoh, M.Aoyagi and T.Taino: "Development of X-ray Detectors based on Nb/Al/AlOx/Al/Nb Superconduting Tunnel Junctions"Nucl. Instrum. Methods A. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Oku, T.Ikeda, H.Kato, K.Kawai, H.Miyasaka, W.Ootani, C.Otani, H.Sato, H.M.Shimizu, H.Watanabe, H,Nakagawa, H.Akoh, M.Aoyagi and T.Taino: "High Resolution X-ray Detectors based on Superconduting Tunnel Junctions with SQUID Readout"Nucl. Instrum. Methods A. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Sato, T.Ikeda, H.Kato, K.Kawai, H.Miyasaka, T.Oku, W.Ootani, C.Otani, H.M.Shimizu, H.Watanabe, H.Nakagawa, H.Akoh, M.Aoyagi and T.Taino: "Development of Superconduting Tunnel Junctions with Al Trapping Layer for X-ray Detectors"Proc. European Conf. On Applied Superconductivity. Sep. 14- 17, 1999, Barcelona, Spain. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] T.Ikeda, H.Kato, K.Kawai, H.Miyasaka. T.Oku, W.Ootani, C.Otani, H.Sato, H.M.Shimizu, H.Watanabe, H,Nakagawa, H.Akoh, M.Aoyagi and T.Taino: "A Compact High-resolution X-ray Detector System using STJ and a SQUID Amplifier"Proc. European Conf. On Applied Supercondutivity. Sep. 14- 17, 1999, Barcelona, Spain. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] C.Otam, T.Ikeda, H.Kato, K.Kawal, H.Miyasaka, T.Oku, W.Ootam, H.Sato, H.M.Shimizu, H.Watanabe, H.Nakagawa, H.Akoh, M.Aoyagi and T.Taino: "Properties of Substrate Phonon Events in Superconduting Tunnel Junctions Induced by X-ray Absorption"Jpn. J. Appl. Phys.. Vol.39 No.4A (in press). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Sato, T.Ikeda. H.Kato, K.Kawai, H.Miyasaka, T.Oku, W.Ootani, C.Otani, H.M.Shimizu, H.Watanabe. H,Nakagawa, H.Akoh. M.Aoyagi and T.Taino: "New Fabrication Technique of Nb/Al/AlOx/Al/Nb Superconduting Tunnel Junctions as an X-ray Detector"Jpn. J. Appl. Phys.. (in press). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.M.Shimizu et al.: "Superconducting Tunnel Junctions General Purpose Detecrors" Jpn.J.Appl.Phys.37 Suppl.37-2. 61-65 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.M.Shimizu et al.: "Superconducting Radiation Detector" RIKEN review. 18. 3-4 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Sato et al.: "Development of Superconducting Tunnel Junctions with an Aluminum-Oxide Insulation Layer for X-ray Detection" IEEE Trans.Appl.Supercond.(accepted). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Maehata et al.: "Charateristics of Large Nb-based Tunnel Junctions for X-ray Detection" IEEE Trans.Appl.Supercond.7.

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Watanabe et al.: "Development of 4K GaAs Charge-Sensitive Preamplifier for the Reabout of STJ X-ray Signals" IEEE Trans.Appl.Supercond.(accepted). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Ikeda et al.: "Development of Compact System for High-resolution X-ray Detection with a SQUID Amplifier" IEEE Trans.Appl.Supercond.(accepted). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Kishimoto et al.: "Characterization of Nb/Al-AlOx/Al/Nb Tunnel Junction for X-rays of 5 to 15 keV" Czech.J.Phys.46 suppl.pt.S2. 661-662 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Keisuke Maehata et al.: "Detection of Synchrotron Radiation by Nb-Based Superconducting Tunnel Junction" Jpn.J.Appl.Phys.35. L178-L181 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 清水裕彦他: "次世代の放射線スペクトロスコピー" J.At.Energy Soc.Japan. 38,No.9. 18-23 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Maehata et al.: "Charateristics of Large Nb-based Tunnel Junctions for X-ray Detection" IEEE Trans.Appl.Supercond.7. 3371-3374 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Ishibashi et al.: "Empirical Characteristics of Tunnel Junctions for X-ray Detection" IEEE Trans.Appl.Supercond.7. 3375-3378 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 前畑京介 他: "Characteristics of Large Nb-based Tunnel Junctions for X-ray Detection" IEEE trans. Applied Superconduct.7. (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 石橋健二 他: "Empirical Characteristics of Tunnel Junctions for X-ray Detection" IEEE trans. Applied Superconduct.7. (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 清水裕彦 他: "次世代の放射線スペクトロスコピー" J.At.Energy Soc. Japan. 38 No9. 18-23 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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