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1998 Fiscal Year Final Research Report Summary

Absolute measurements of radicals in visible-ultraviola regions

Research Project

Project/Area Number 09440196
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Physical chemistry
Research InstitutionTokyo Institute of Technology

Principal Investigator

SHIBUYA Kazuhiko  Tokyo Institute of Technology, Graduate School of Science and Engineering, Associate Professor (30126320)

Co-Investigator(Kenkyū-buntansha) KAWAI Akio  Tokyo Institute of Technology, Graduate School of Science and Engineering, Associate (50262259)
TSUJI Kazuhide  Tokyo Institute of Technology, Graduate School of Science and Engineering, Associate (40262258)
Project Period (FY) 1997 – 1998
KeywordsCRD Speolrescopy / OH / O_3 interference / trace. gao / concentration / atmospherie model
Research Abstract

A cavity-ringdown spectroscopic apparatus has been built up. Though the spectral linewidth measured for OH was narrow, the ambient experimental conditions fulfill the Lambert-Beer conditions and therefore the linearity of the measurements. The detection limit was estimated as 1.5x10^9 molecules/cm^3 under the ambient pressure conditions.
This detection limit can be improved theoretically to 5x10^7 molecules/cm^3. This value is still less sensitive than the expected limit, possibly due to the instability of the cavity, which will be solved in future.
The reflectivity of mirrors, the length of the cavity, and noise mainly control the detection limit. The consideration was performed to improve the limit 1000 times, which realizes the field measurements of OH by the present detection method.

  • Research Products

    (18 results)

All 1999 1998 1997 Other

All Journal Article (18 results)

  • [Journal Article] Solvent Effects on the Complex Formation of BPK and TEA1999

    • Author(s)
      T. Abe, et al.
    • Journal Title

      J. Phys, Chem. 103

      Pages: 1457-1462

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Solvent Effects on the Complex Formation of Benzophenone Ketyl Radical and Triethylamine1999

    • Author(s)
      T. Abe, A. Kawai, Y. Kajii, K. Shibuya, K. Obi
    • Journal Title

      J. Phys. Chem 103[11]

      Pages: 1457-1462

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Trans-cis isomerization of acetylene in the A^^~^1A_u state as studied by dispersed fluorescence spectroscopy1999

    • Author(s)
      K. Tsuji, C. Terauchi, S. Tsuchiya, K. Shibuya
    • Journal Title

      Chem. Phys. Letters 306[1-2]

      Pages: 41-47

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] The low-lying electronic state of FeC observed 3460 cm^<-1> above X^3Δ_21999

    • Author(s)
      K. Aiuchi, K. Tsuji, K. Shibuya
    • Journal Title

      Chem. Phys. Letters 309[3-4]

      Pages: 229-233

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Electronic Spectroscopy and predissociation mechaism of Au-NO1998

    • Author(s)
      K. Tsuji, et al
    • Journal Title

      Chem Phys 231

      Pages: 279-288

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Heats of Formation of Transient Radical in solution1998

    • Author(s)
      K. Takeda, et al.
    • Journal Title

      J. Photochem, Photobio A : chem, 115

      Pages: 109-115

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Photochcimical a-Cleavafe Reaction of Benzoin.1998

    • Author(s)
      N. K. Shrestha, et al
    • Journal Title

      J. Photochem, Photobio. A : Chem. 116

      Pages: 179-185

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Electronic spectroscopy and predissociation mechanism of Ar-NO in the 3p Rydberg states1998

    • Author(s)
      K. Tsuji, K. Aiuchi, K. Shibuya, K. Obi
    • Journal Title

      Chem. Phys. 231

      Pages: 279-288

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Heats of Formation of Transient Radicals in Solution1998

    • Author(s)
      K. Takeda, Y. Kajii, K. Shibuya, K. Obi
    • Journal Title

      J. Photochem. Photobio. A : Chem 115

      Pages: 109-115

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Visible Light Induced Oxygen Atom Transfer from NO_2 to (CH_3)_3N a Cryogenic Ar Matrix1998

    • Author(s)
      N. Tanaka, J. Oike, K. Shibuya, S. Kudoh, M. Nakata
    • Journal Title

      Rev. Chem. Intermedi 24[8]

      Pages: 893-903

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Photochemical α-Cleavage Reaction of Benzoin and Its Derivatives1998

    • Author(s)
      N. K. Shrestha E. J. Yagi, Y. Takatori, A. Kawai, Y. Kajii, K. Shibuya, K. Obi
    • Journal Title

      J. Photochem. Photobio. A : Chem 116

      Pages: 179-185

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Dissociation of sate selected No_2 Ions Studied by TPPC, Techigues in The Region of 40-100nm1997

    • Author(s)
      K. Shibuya, et al.
    • Journal Title

      J. Phys Chem 101

      Pages: 685-689

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Photodissociation Dehydrogenation of 1.4-Cyclohexadilue by NO_2 in a eryogemc Ar Main X1997

    • Author(s)
      N. Tanaka, et al.
    • Journal Title

      J. Photochem Photobio A : Chem. 106

      Pages: 113-118

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Vibrational leuel structure of NO_2 C^2A_21997

    • Author(s)
      K. Shibuya, et al
    • Journal Title

      J. Molec, Structure 413-414

      Pages: 501-509

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Dissociation of State Selected NO_2^+ Ions Studied by Threshold Photoelectron-Photoion Coincidence Techniques in the Region of 40-100 nm1997

    • Author(s)
      K. Shibuya, S. Suzuki, T. Imamura, I. Koyano
    • Journal Title

      J.Phy.Chem 101[4]

      Pages: 685-689

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Photoinduced Dehydrogenation of 1, 4-Cyclohexadiene by NO_2 in a Cryogenic Ar Matrix1997

    • Author(s)
      N. Tanaka, M. Nakata, K. Shibuya
    • Journal Title

      J. Photochem. Photobio. A. Chem. 106

      Pages: 113-118

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Vibrational level structure of N0_2 C^^~^2A_2 in the energy region of 16200-21000 cm^<-1> Evidence for the breakdown of C_<2v> symmetry1997

    • Author(s)
      K. Shibuya, C. Terauchi, M. Sugawara, K. Tsuji, K. Aoki, S. Tsuchiya
    • Journal Title

      J.Molec. Structure 413-414

      Pages: 501-509

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] An OH Monitoring Method Using Infrared-Ultraviolet Double Resonance Laser Induced Fluorescence

    • Author(s)
      K. Tsuji, K. Nakata, H. Oishi, K. Shibuya
    • Journal Title

      J. Atmospheric Chemistry (submitted)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2010-06-09  

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