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Research of Superconduting Tunnel Junctions for Visible Photon and Molecular Beam

Research Project

Project/Area Number 09490038
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 広領域
Research InstitutionRIKEN (The Institute of Physical and Chemical Research)

Principal Investigator

SHIMIZU Hirohiko  RIKEN, Advanced Computing Center, Division Head, 情報基盤研究部イメージ情報技術開発室, 室長(研究職) (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, 情報基盤研究部イメージ情報技術開発室, 研究協力員(研究職) (50281663)
SATO Hiromi  RIKEN, Advanced Computing Center, Contract Researcher, 情報基盤研究部イメージ情報技術開発室, 研究協力員(研究職) (20300874)
KAWAI Kazuhiko  RIKEN, Advanced Computing Center, Contract Researcher, 情報基盤研究部イメージ情報技術開発室, 研究協力員(研究職) (00312265)
IKEDA Tokihiro  RIKEN, Advanced Computing Center, Postdoctoral Researcher, 原子物理研究室, 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, 先任技師(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) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥12,100,000 (Direct Cost: ¥12,100,000)
Fiscal Year 1999: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1998: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1997: ¥7,900,000 (Direct Cost: ¥7,900,000)
KeywordsSuperconducting Tunnel Junction / Visble Photon Detector / Molecular Beam Detector / Crvogenic Detector / 光検出器 / 磁場勾配 / 冷中性子 / 中性子ビーム制御
Research Abstract

The superconduting tunnel junction is a low temperature detector which can be operated at relatively higher temperatures below 1K.It is a candidate of general purpose radiation detector of the next generation. In this project, the fabrication technique of the superconduting tunnel junctions for the detection of visible photons and molecular beam.
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 junctions without the top SiO2 layer was developed to extend the sensitive energy to lower energies. We have experimentally shown the junctions can measure the photon energy down to about 50 eV.The techniques to realize superconducting detector for low energy quanta such as visible photon and molecular beam were studied and developed in this project.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 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
      1999 Final Research Report Summary
  • [Publications] T.Oku,T.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
      1999 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"Proceedings 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
      1999 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"Proceedings 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
      1999 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
      1999 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 Superconduting Tunnel Junctions with an Aluminum-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
      1999 Final Research Report Summary
  • [Publications] H.Sato, T.Ikeda, H.Kato, K.Kawai, H.Miyasaki, T.Oku, W.Ootani, C.Otani, H.M.Shimizu and H.Watanabe: "Development of Superconducting Tunnel Junctions with an Aluminum-Oxide Insulation Layer for X-ray Detectors"IEEE Trans.Appl.Supercond. 9. 4475-4478 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T.Ikeda, H.Kato, K.Kawai, H.Miyasaka, T.Oku, W.Ootani, C.Otani, H.Sato, H.M.Shimizu and H.Watanabe: "Development of a Compact System for High-resolution X-ray Detection using a SQUID Amplifier"IEEE Trans.Appl.Supercond. 9. 3858-3861 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T.Oku, T.Ikeda, H.Kato, K.Kawai, H.Miyasaka, W.Ootani, C.Otani, H.Sato, H.M.Shimizu, Y.Takizawa, H.Watanabe, H.Nakagawa, H.Akoh, M.Aoyagi, T.Taino: "High-resolution X-ray Detectors based on Superconducting Tunnel Junction with SQUID Readout"Nucl.Instrum.Methods Phys Res. A444. 136-139 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] W.Ootani, T.Ikeda, H.Kato, K.Kawai, H.Miyasaka, T.Oku, C.Otani, H.Sato, H.M.Shimizu, Y.Takizawa, H.Watanabe, H.Nakagawa, H.Akoh, M.Aoyagi, T.Taino: "Development of X-ray Detectors based on Nb/Al/AlOx/Al/Nb Superconducting Tunnel Junctions"Nucl.Instrum.Methods Phys Res.. A444. 249-252 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Sato, Y.Takizawa, W.Ootani, T.Ikeda, T.Oku, C.Otani, H.Watanabe, K.Kawai, H.Kato, H.M.Shimizu, H.Nakagawa, H.Akoh, M.Aoyagi and T.Taino: "Improved Fabrication Method for Nb/Al/AlOx/Al/Nb Superconduting Tunnel Junctions as X-ray Detectors"Jpn.J.Appl.Phys.. 39. 5090-5094 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 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.Nakagawa, H.Akoh, M.Aoyagi and T.Taino: "Properties of Substrate Phonon Events in Superconducting Tunnel Junctions Induced by X-ray Absorption"Jpn.J.Appl.Phys.. 39. 1710-1718 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Sato, T.Ikeda, K.Kawai, H.Miyasaka, T.Oku, W.Ootani, C.Otani, H.M.Shimizu, Y.Takizawa, H.Watanabe, K.Morimoto and F.Tokanai: "Detection of Heavy Ions by a Superconducting Tunnel Junction"Nucl.Instrum.Methods Phys.Res.. A459. 206-210 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.M.Shimizu, T.Ikeda, H.Kato, K.Kawai, H.Miyasaka, T.Oku, W.Ootani, C.Otani, H.Sato, Y.Takizawa, H.Watanabe: "Development of Superconducting Tunnel Junctions for the Detection of X-rays and Heavy Ions"IEICE Trans.Electron.. E84-C. 35-42 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T.Ikeda, H.Kato, H.Sato, K.Kawai, H.Miyasaka, T.Oku, W.Ootani, C.Otani, H.M.Shimizu, Y.Takizawa, H.Watanabe, H.Nakagawa, H.Akoh, M.Aoyagi, T.Taino: "A High-resolution X-ray Detection System using STJ and SQUID Amplifier"IEEE Trans.Appl.Supercond.. (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 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, H.Nakagawa, H.Akoh M.Aoyagi, T.Taino: "Spectral Features of Substrate Phonon Events Obtained with Superconduting Tunnel Junctions by Illuminating with X-rays"IEEE Trans.Appl.Supercond. (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H.Sato, T.Ikeda, K.Kawai, H.Miyasaka, T.Oku, W.Ootani, C.Otani, H.M.Shimizu, Y.Takizawa, H.Watanabe, K.Morimoto, F.Tokanai, H.Akoh, H.Nakagawa, M.Aoyagi and T.Taino: "Detection of Heavy Ions using Nb-based Superconducting Tunnel Junction"IEEE Trans.Appl.Supercond. (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y.Takizawa, T.Ikeda, T.Oku, C.Otani, K.Kawai, H.Sato, H.M.Shimizu, H.Miyasaka, H.Watanabe, W.Ootani, H.Akoh, H.Nakagawa, M.Aoyagi and T.Taino: "Development of Superconduting Tunnel Junctions for Ultra Soft X-ray Detectors"IEEE Trans.Appl.Supercond. (in press). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [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/A1/A1O_x/A1/Nb Superconducting Tunnel Junctions"Nuclear Instruments & Methods in Physics Research Section A. (出版中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Oku,T.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)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Sato,T.Ikeda,H.Kato,K.Kawai,H.Miyasaka,T.Oku,W.Ootani,C.Otani,H.M.Shimizu,Y.Takizawa,W.Watanabe他4名: "Development of Superconducting Tunnel Junctions with Al Trapping Layers for X-ray Detectors"Proceedings of 4th European Conference on Applied Superconductivity. (出版中). (2000)

    • Related Report
      1999 Annual Research Report
  • [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"Proceedings of 4th European Conference on Applied Superconductivity. (出版中). (2000)

    • Related Report
      1999 Annual Research Report
  • [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)

    • Related Report
      1999 Annual Research Report
  • [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 Aluminum-Oxide Insulation Layer for X-ray Detection"IEEE Transaction on Applied Superconductivity. 9. 4475-4478 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.M.Shimizu et al.: "Superconducting Tunnel Junctions as General Purpose Detecrors" Jpn.J.Appl.Phys.37Suppl.37-2. (1998)

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

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Published: 1997-04-01   Modified: 2016-04-21  

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