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INSTRUMENTAL DEVELOPMENT OF ULTRA-HIGH PERFORMANCE NOx ANALYZER USING LASER INDUCED FLUORESCENCE TECHNIQUE

Research Project

Project/Area Number 09558066
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Environmental dynamic analysis
Research InstitutionTHE UNIVERSITY OF TOKYO

Principal Investigator

KAJII Yoshizumi  RCAST, UNIV. OF TOKYO, ASSOCIATE PROFESSOR, 先端技術研究センター, 助教授 (40211156)

Co-Investigator(Kenkyū-buntansha) YOSHIZAWA Hitoshi  FUJII KOUGAKU LTD., RESEARCHER, 研究員
HIROKAWA Jun  RCAST, UNIV. OF TOKYO, RES. ASSOCIATE, 先端技術研究センター, 助手 (20262115)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥13,000,000 (Direct Cost: ¥13,000,000)
Fiscal Year 1999: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1998: ¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 1997: ¥8,300,000 (Direct Cost: ¥8,300,000)
KeywordsLASER INDUCED FLUORESCENCE TECHNIQUE / NITROGEN DIOXIDE / NOx / PHOTON COUNTING / PHOTODISSOCIATION / CHMILUMINESCENCE / NO_x / NO_2 / LIF / Nd:YLFレーザー / ダイノードゲート / 電子吸収帯 / レーザー誘起蛍光 / 消光定数 / 多重反射系 / 半導体レーザー励起Ndレーザー / GaAs光電面 / 光子計数システム
Research Abstract

ULTRA HIGH PERFORMANCE NOx ANALYZER USING LASER INDUCED FLUORESCENCE TECHNIQUE WAS DEVELOPED. THIS INSTRUMENT COSISTS OF DIODE LASER PUMTPED Nd:YAG LASER, CORRECTION SYSTEM OF LASER FLUCTUATION, LIF CELL, COLLECTION OPTICS FOR LIF, PHOTON COUNTING SYSTEM, VACUUM SYSTEM, AND PERSONAL COMPUTER FOR SYSTEM CONTROL AND DATA ACQUSITION. WE OPTIMIZED THESE COMPONENTS AND MADE EFFORTS FOR DOWN-SIZING THE INSTRUMENT. THE INSTRUMENT CAN MEASURE AS LOW AS 3.8 PPTV OF NOィイD22ィエD2 FOR 1 MIN. INTEGRATION. WE BROUGHT THIS INSTRUMENT TO THE OKINAWA ATMOSPHERIC STATION WHERE AIR IS VERY CLEAN AND NOx LEVEL IS VERY LOW. WE SUCCEDED TO MEASURE CLEAN HUMID MARIN NOx CONCENTRATION. INTER-COMPARISON WITH DIFFERENT PRINCIPLE OF TECHNIQUE AND GOT QUITE GOOD RESULT AND WE CONCLUDED THIS INSTRUMENT IS PRACTICALLY QUITE USEFUL AND RELIABLE ENOUGH TO MEASURE REMOTE CLEAN AIR SAMPLE.

Report

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

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 金谷有剛、定永靖宗、松本淳、Shrma,U.廣川淳、梶井克純、秋元肇: "Nighttime observation of the HO_2 radical by an LIF instrument at Oki island Japan and its possible origins"Geophysical Research Letters. 26. 2179-2182 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 梶井克純、金谷有剛、定永靖宗、廣川淳、秋元肇: "Measurements of HO_X Radicals and Their Chemistry in the Troposphere""Recent Research Developments in Geoophysical Research II" Research Signpost(in press). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] YUGO KANAYA, ET AL.: "NIGHTTIME OBSERVATION OF THE HOィイD22ィエD2 RADICAL BY AN LIF INSTRUMENT AT OKI ISLAND, JAPAN, AND ITS POSSIBLE ORIGINS"GEOPHYSICAL RESEARCH LET-TERS. 26. 2179-2182 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] YOSHIZUMI KAJII, ET AL.: "MEASUREMENTS OF HOX RADICALS AND THEIR CHEMISTRY IN THE TROPO-SPHERE"RECENT RESEARCH DEVELOP-MENTS IN GEOPHYSYCAL RE-SEARCH II, RESEARCH SIGN-POST. (IN PRESS).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary

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

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