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R&D of ultra high sensitive ^<26>Al direct detection system with an electrostatic tandem accelerator

Research Project

Project/Area Number 14350038
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied physics, general
Research InstitutionUniversity of Tsukuba

Principal Investigator

NAGASHIMA Yasuo  University of Tsukuba, Graduates school of human sciences, Professor, 大学院・人間総合科学研究科, 教授 (60091914)

Co-Investigator(Kenkyū-buntansha) AOKI Takayoshi  University of Tsukuba, Graduates school of pure and applied sciences, Associate Professor, 大学院・数理物質科学研究科, 助教授 (30114028)
SASA Kinukazu  University of Tsukuba, Graduates school of pure and applied sciences, Assistant Professor, 大学院・数理物質科学研究科, 講師 (20312796)
関 李紀  筑波大学, 化学系, 教授 (70015775)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥11,900,000 (Direct Cost: ¥11,900,000)
Fiscal Year 2004: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2003: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2002: ¥8,200,000 (Direct Cost: ¥8,200,000)
KeywordsAMS / Accelerator Mass Spectrometry / ^<26>Al / Environment / Tandem Electrostatic Accelerator / Tracer / Long lived RI / Cosmic ray origin RI / 塩素36 / アルミニウム-26 / 塩素-36
Research Abstract

A ^<26>Al ultra high-sensitive accelerator mass spectrometry system, ^<26>Al-AMS, has been developed successfully on a 12UD tandem accelerator at the University of Tsukuba. A newly developed ^<26>MgO-molecular pilot beam and ^<26>Al^<13+> full stripped detection method allowed us to realize the AMS system without any modifications in the accelerator. The performances of the ^<26>Al-AMS are listed up on the followings.
1)Method ^<26>AlO^-beam and ^<26>MgO^-molecular pilot beam method
2)Sample Form Al_2O_3
3)Pilot Material ^<26>MgO_2
4)^<27>AlO^-ion current 〜1.5μA
5)^<26>MgO^-ion current 〜5nA
6)Acceleration Voltage 10MV
7)Pilot Particle ^<26>Mg^<7+>
8)Sensitivity <2×10-15(^<26>Al/^<27>Al)
9)Accuracy 〜3%
The ultra high sensitivity is achieved fortunately, but the accuracy is not sufficient and the improvement of it is strongly requested. Though the total performance of the system is not perfect at this moment, The ^<26>Al^-AMS services are commenced for the users who are planning the ^<26>Al measurements.

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (21 results)

All 2004 Other

All Journal Article (13 results) Publications (8 results)

  • [Journal Article] AMS Activites in Japan and Outcomes2004

    • Author(s)
      Yasuo Nagashima
    • Journal Title

      Journal of Chinese Mass Spectrometry No.25

      Pages: 207-209

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Chlorine-36 in granite samples from the Hiroshima A-bomb site2004

    • Author(s)
      Yasuo Nagashima
    • Journal Title

      Nuclear Instruments and Methods, B B223-224

      Pages: 782-787

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] 36Cl measurements of Hiroshima A-bombed granites2004

    • Author(s)
      Yasuo Nagashima
    • Journal Title

      Proceedings of the workshop on "New Radiation Dosimetry System DSO2 for the Atomic Bombing in Hiroshima" KURRI-KR114

      Pages: 31-35

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The status of Tsukuba AMS system2004

    • Author(s)
      Yasuo Nagashima
    • Journal Title

      Proceeding of the 17^<th> conference on tandem accelerator and the related technologies No.1

      Pages: 56-59

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The status of Tsukuba tandem accelerator2004

    • Author(s)
      K.Sasa
    • Journal Title

      Proceeding of the 17^<th> conference on tandem accelerator and the related technologies No.1

      Pages: 42-45

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] AMS Activities in Japan and Outcomes2004

    • Author(s)
      Yasuo Nagashima
    • Journal Title

      Journal of Chinese Mass Spectrometry No.25

      Pages: 207-209

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 36Cl measurements of Hiroshima A-bombed granites2004

    • Author(s)
      Yasuo Nagashima
    • Journal Title

      Proceedings of the workshop on"New Radiation Dosimetry System DS02 for the Atomic Bombing in Hiroshima" KURRI-KR114

      Pages: 31-35

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The status of Tsukuba AMS system2004

    • Author(s)
      Yasuo Nagashima
    • Journal Title

      Proceeding of the 17^<th> conference on tandem accelerator and the technologies No.1

      Pages: 56-59

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] The status of Tsukuba tandem accelerator2004

    • Author(s)
      Kimikazu Sasa
    • Journal Title

      Proceeding of the 17^<th> conference on tandem accelerator and the related technologies No.1

      Pages: 42-45

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] AMS Activites in Japan and Outcomes2004

    • Author(s)
      Yasuo Nagashima
    • Journal Title

      Journal of Chinese Mass Spectrometry Society No.25

      Pages: 207-209

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 36Cl measurements of Hiroshima A-bombed granites2004

    • Author(s)
      Yasuo Nagashima
    • Journal Title

      Proceedings of the workshop on "New Radiation Dosimetry System DS02 for the Atomic Bombing in Hiroshima" KURRI-KR-114

      Pages: 31-35

    • Related Report
      2004 Annual Research Report
  • [Journal Article] The status of Tsukuba 26Al-AMS2004

    • Author(s)
      Yasuo Nagashima
    • Journal Title

      Proceedings of the 17^<th> conference on tandem accelerators and the related technologies No.1

      Pages: 56-59

    • Related Report
      2004 Annual Research Report
  • [Journal Article] The status of Tsukuba tandem accelerator2004

    • Author(s)
      K.Sasa
    • Journal Title

      Proceedings of the 17^<th> conference on tandem accelerators and the related technologies No.1

      Pages: 56-59

    • Related Report
      2004 Annual Research Report
  • [Publications] Riki Seki: "Determination of 36Cl in environmental samples collected in the JCO by AMS"Journal of Radioanalytical and Nuclear Chemistry. 255-2. 245-247 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Yasuo Nagashima: "Chlorine-36 in granite samples from the Hiroshima A-bomb site"Nuclear Instruments and Methods, B. (In Print).

    • Related Report
      2003 Annual Research Report
  • [Publications] Y.Nagashima: "Status of Tsukuba AMS system"UTTAC. 71. 94-96 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Bessho: "Measurement of 36Cl induced in shielding concrete of various accelerator facilities using AMS"UTTAC. 71. 99-100 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takeshi Matsuhiro: "^<36>Cl AMS Measurements of Hiroshima A-Bombed Granites"Proceedings of the Third Workshop on Environmental Radioactivity. 200-2. 69-73 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Riki Seki: "Determination of 36Cl in enviromental samples collected in the JCO by AMS"Journal of Radioanalytical and Nuclear Chemistry. 255-2. 245-247 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yasuo Nagashima: "36Cl measurements"Proceedings of Joint Meeting of U.S.-Japan Dosimetry Working Group. 110-1. 1-10 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yasuo Nagashima: "Chlorine-36 in granite samples from the Hiroshima A-bomb site"Nuclear Instruments and Methods, B. (in Print).

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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