Development of a device for observing dispersed emission spectra through the use of the energies of photoelectorns

• Project/Area Number: 16K13937
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Physical chemistry
• Research Institution: Hiroshima University
• Principal Investigator: Yamasaki Katsuyoshi 広島大学, 理学研究科, 教授 (90210385)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 分光デバイス / 分光スペクトル / 光電効果 / 光電子エネルギー / 化学物理

Outline of Final Research Achievements

The goal of this project is to construct a compact device for observing dispersed emission spectra. The device measures the wavelengths of the incident photons through the energies of photoelectrons emitted from a photocathode. We have remodeled a commercial photomultiplier and tried to measure the dependence of the energies of photoelectrons on the wavelength of the incident light, finding that photoelectrons can be detected without applying voltage to the first dynode. The cause of the fluctuation of the signal originates form the thermal electrons (1 V) instead of the ripple of the high voltage power supply (0.05 V). Separation of the pulses of thermal electrons and photoelectrons is necessary to fabricate a device for observing dispersed emission spectra.

Research Products

• [Journal Article] Direct Detection of S(3P) and S(1D) Generated in the O(1D) + OCS Reaction: Mechanism of the Formation of S2 (X 3∑g and a1Δg) (2018)
  • Author(s): Haruka Tanimoto, Shogo Tendo, Kenichi Orimi, Hiroki Goto, Hiroshi Kohguchi, and Katsuyoshi Yamasaki
  • Journal Title: Journal of Physical Chemistry A Volume: 122 Issue: 8 Pages: 1948-1953
  • DOI: 10.1021/acs.jpca.7b11375
  • Peer Reviewed
• [Journal Article] Internal and Translational Energy Partitioning of the NO Product in the S2 Photodissociation of Methyl Nitrite (2017)
  • Author(s): Masataka Sumida, Shu Masumoto, Mitsue Kato, Katsuyoshi Yamasaki, and Hiroshi Kohguchi
  • Journal Title: Chemical Physics Letters Volume: 674 Pages: 58-63
  • DOI: 10.1016/j.cplett.2017.02.044
  • Peer Reviewed
• [Journal Article] Vibrational relaxation of S2(a1Δg) by collisions with SF6 and CF4 (2017)
  • Author(s): Shogo Tendo, Tohru Uchiyama, Hiroki Goto, Ayano Hara, Keigo Fujihara, Hiroshi Kohguchi, and Katsuyoshi Yamasaki
  • Journal Title: Chemical Physics Letters Volume: 684 Pages: 171-176
  • DOI: 10.1016/j.cplett.2017.06.030
  • Peer Reviewed
• [Presentation] Detection of the Excited State NH2(A2A1) in the Ultraviolet Photodissociation of Methylamine. (2017)
  • Author(s): 鬼塚侑樹，山崎勝義，後藤寛貴，山崎勝義
  • Organizer: International Confrenence on Molecular Energy Transfer 2017 (iCOMET 2017)
  • Place of Presentation: Innsbruck(Austria)
  • Year and Date: 2017-01-07
  • Int'l Joint Research
• [Presentation] Genaration of CH(X2Π) and H in the UV two-photon dissociation of CHX3(X = Cl, Br) (2017)
  • Author(s): 吉木敦美，杉野佑太，天道尚吾，高口博志，山崎勝義
  • Organizer: 33rd Symposium on Chemical Kinetics and Dynamics
  • Int'l Joint Research
• [Presentation] Mechanism of the generation of S2(a1Δg) in the O(1D) + OCS reaction system (2017)
  • Author(s): 谷本遥，後藤寛貴，天道尚吾，高口博志，山崎勝義
  • Organizer: 33rd Symposium on Chemical Kinetics and Dynamics
  • Int'l Joint Research
• [Presentation] Kinetic study on the vibrational relaxation of S2(a1Δg) by collisions with CF4 (2017)
  • Author(s): 天道尚吾，谷本遥，後藤寛貴，高口博志，山崎勝義
  • Organizer: 33rd Symposium on Chemical Kinetics and Dynamics
  • Int'l Joint Research
• [Presentation] Probing photochemical reaction of pentacarbonyliron(0) in the MLCT state by using REMPI spectroscopy and ion imaging (2017)
  • Author(s): 中田裕之，山崎勝義，高口博志
  • Organizer: 33rd Symposium on Chemical Kinetics and Dynamics
  • Int'l Joint Research
• [Presentation] Genaration of CH(X2Π) and H in the UV two-photon dissociation of CHX3(X = Cl, Br) (2017)
  • Author(s): 吉木敦美，杉野佑太，天道尚吾，高口博志，山崎勝義
  • Organizer: International Symposium on "Diversity of Chemical Reaction Dynamics"
  • Int'l Joint Research
• [Presentation] Mechanism of the generation of S2(a1Δg) in the O(1D) + OCS reaction system (2017)
  • Author(s): 谷本遥，後藤寛貴，天道尚吾，高口博志，山崎勝義
  • Organizer: International Symposium on "Diversity of Chemical Reaction Dynamics"
  • Int'l Joint Research
• [Presentation] Kinetic study on the vibrational relaxation of S2(a1Δg) by collisions with CF4 (2017)
  • Author(s): 天道尚吾，谷本遥，後藤寛貴，高口博志，山崎勝義
  • Organizer: International Symposium on "Diversity of Chemical Reaction Dynamics"
  • Int'l Joint Research
• [Presentation] Structural dynamics of photoexcited transition metal carbonyls - Approach from the motion of photoeliminated ligands - (2017)
  • Author(s): 中田裕之，山崎勝義，高口博志
  • Organizer: International Symposium on "Diversity of Chemical Reaction Dynamics"
  • Int'l Joint Research
• [Presentation] Detection of the excited state NH2(A2A1) in the ultraviolet photodissociation of methylamine (2017)
  • Author(s): 鬼塚侑樹，山崎勝義，高口博志
  • Organizer: International Symposium on "Diversity of Chemical Reaction Dynamics"
  • Int'l Joint Research
• [Presentation] メチルアミンの紫外光解離における電子励起状態NH2の検出 (2017)
  • Author(s): 鬼塚侑樹，山崎勝義，後藤寛貴，高口博志
  • Organizer: 第11回分子科学討論会
• [Presentation] Photodissociation study of transition metal carbonyls by analyzing the motion of ligands (2017)
  • Author(s): 中田裕之，山崎勝義，高口博志
  • Organizer: 第11回分子科学討論会
• [Presentation] Examination of the photodissociation mechanism following the excited state dynamics of trimethylamine (2017)
  • Author(s): 門脇悠稀，鬼塚侑樹，山崎勝義，高口博志
  • Organizer: 第11回分子科学討論会
• [Presentation] Non-adiabatic dynamics around the conical intersection of ammonia-derivative species (2017)
  • Author(s): 鬼塚侑樹，山崎勝義，高口博志
  • Organizer: 第13回若手研究者による先端的レーザー分光シンポジウム
• [Presentation] Detection of atomic oxygen O(3P) with vacuum ultraviolet emission subsequent to two-photon excitation (2017)
  • Author(s): 天道尚吾，高口博志，山崎勝義
  • Organizer: The 14th Nano Bio Info Chemistry Symposium
  • Int'l Joint Research
• [Presentation] Generation of CH and H as the photoproducts of trihalomethanes and chemical reactions of CH with the precursors (2017)
  • Author(s): 吉木敦美，杉野佑太，天道尚吾，高口博志，山崎勝義
  • Organizer: The 14th Nano Bio Info Chemistry Symposium
  • Int'l Joint Research
• [Presentation] Mechanism of generation of S2 (X3Σg- , a1Δg) in the O(1D) + OCS reaction system (2017)
  • Author(s): 谷本遥，天道尚吾，折見健一，後藤寛貴，高口博志，山崎勝義
  • Organizer: The 14th Nano Bio Info Chemistry Symposium
  • Int'l Joint Research
• [Presentation] Detection of electronically excited NH2 product in the ultraviolet photodissociation of methylamine (2017)
  • Author(s): 鬼塚侑樹，天道尚吾，山崎勝義，高口博志
  • Organizer: The 14th Nano Bio Info Chemistry Symposium
  • Int'l Joint Research
• [Presentation] Photoelimination dynamics study of tricarbonylnitrosylcobalt by analyzing the motion of eliminated ligands (2017)
  • Author(s): 中田裕之，長森啓悟，山崎勝義，高口博志
  • Organizer: The 14th Nano Bio Info Chemistry Symposium
  • Int'l Joint Research
• [Presentation] Internal and translational energy partitioning of the NO product in the S2 photodissociation of methyl nitrite (2017)
  • Author(s): 住田聖太，益本修，加藤光枝，山崎勝義，高口博志
  • Organizer: 34th International Symposium on Free Radicals
  • Int'l Joint Research
• [Presentation] Detection of Sulfur Atoms (1D and 3P) and Branching Ratio between Reaction and Quenching in the S(1D) + OCS System. (2016)
  • Author(s): 後藤寛貴，谷本遥，宮地信和，高口博志，山崎勝義
  • Organizer: The 13th Nano Bio Info Chemistry Symposium
  • Place of Presentation: 広島大学(広島県・東広島市)
  • Year and Date: 2016-12-10
• [Presentation] Dynamics Study of CH3ONO Characterized by the Internal State Anti-correlation of the Photofragments. (2016)
  • Author(s): 住田聖太, 益本修, 加藤光枝, 山崎勝義, 高口博志
  • Organizer: 第10回分子科学討論会
  • Place of Presentation: 神戸ファッションマート(兵庫県・神戸市)
  • Year and Date: 2016-09-13
• [Presentation] 電子励起状態のNH2を生成するメチルアミンの光解離ダイナミクス (2016)
  • Author(s): 鬼塚侑樹，山崎勝義，高口博志
  • Organizer: 第10回分子科学討論会
  • Place of Presentation: 神戸ファッションマート(兵庫県・神戸市)
  • Year and Date: 2016-09-13
• [Presentation] Kinetic Study on the Relaxation of Vibrationally Excited S2(a1Δg) by Collisions with SF6. (2016)
  • Author(s): 原彩乃，後藤寛貴，内山太，高口博志，山崎勝義
  • Organizer: 24th International Symposium on Gas Kinetics and Related Phenomena
  • Place of Presentation: York(UK)
  • Year and Date: 2016-07-17
  • Int'l Joint Research
• [Presentation] Identification of the Electronically Excited NH2 Product in the Photodissociation of Methylamine. (2016)
  • Author(s): 鬼塚侑樹，山崎勝義，高口博志
  • Organizer: 32th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: 大宮ソニックシティ(埼玉県・さいたま市)
  • Year and Date: 2016-06-01
  • Int'l Joint Research
• [Presentation] Detection of Sulfur Atoms (1D and 3P) and Branching Ratio between Reaction and Quenching in the S(1D) + OCS System. (2016)
  • Author(s): 後藤寛貴，谷本遥，宮地信和，高口博志，山崎勝義
  • Organizer: 32th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: 大宮ソニックシティ(埼玉県・さいたま市)
  • Year and Date: 2016-06-01
  • Int'l Joint Research
• [Presentation] Kinetic Study on the Vibrational Relaxation of S2(a1Δg) by Collisions with SF6. (2016)
  • Author(s): 原彩乃，後藤寛貴，内山太，高口博志，山崎勝義
  • Organizer: 32th Symposium on Chemical Kinetics and Dynamics
  • Place of Presentation: 大宮ソニックシティ(埼玉県・さいたま市)
  • Year and Date: 2016-06-01
  • Int'l Joint Research
• [Book] 連続固有値関数の規格化とFourier変換 (2017)
  • Author(s): 山崎勝義
  • Total Pages: 13
  • Publisher: 広島大学出版会・漁火書店
• [Book] 物理化学Monographシリーズ(上) 第1版，第5刷 (2016)
  • Author(s): 山崎勝義
  • Total Pages: 403
  • Publisher: 広島大学出版会
• [Book] 物理化学Monographシリーズ(上) 第2版，第1刷 (2016)
  • Author(s): 山崎勝義
  • Total Pages: 511
  • Publisher: 広島大学出版会
• [Book] EinsteinのA係数とB係数 (2016)
  • Author(s): 山崎勝義
  • Total Pages: 31
  • Publisher: 漁火書店
• [Remarks] 反応物理化学研究グループ
  • URL: http://home.hiroshima-u.ac.jp/pchem/
• [Remarks] 山崎グループ研究内容
  • URL: http://home.hiroshima-u.ac.jp/kyam/pages/results/