Observation of isomer formation and cooling processes of carbon chain anions isolated in vacuum

• Project/Area Number: 24750021
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Physical chemistry
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: MATSUMOTO Jun 首都大学東京, 理工学研究科, 助教 (10443029)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
• Keywords: クラスター / 励起分子素過程 / 静電型イオン蓄積リング / 炭素クラスター / イオン蓄積リング

Research Abstract

Effect of structure of carbon chain negative ions in cooling process in vacuum was investigated with electrostatic ion storage rings with two different circumferences. By using an ion storage ring with circumference of about 7.7 m, laser-induced electron detachment with delays up to several milliseconds was observed. It was revealed that the terminal hydrogen atom caused a drastic change in the decay profiles. Meanwhile, a tabletop ion storage ring with circumference of about 0.8 m is constructing in order to observe cooing processes up to a few milliseconds. Problems associated with miniaturization and discharge among electrodes are being solved to achieve ion storage with the tabletop ring.

Research Products

• [Journal Article] Cooling Dynamics of Photoexcited C_6 ^−and C_6H^− (2014)
  • Author(s): G. Ito, T. Furukawa, H. Tanuma, J. Matsumoto, H. Shiromaru, T. Majima, M. Goto, T. Azuma, and K.
  • Journal Title: Phys. Rev. Lett. Volume: 112 Pages: 183001-183001
  • Peer Reviewed
• [Journal Article] Radiative cooling of C7- (2014)
  • Author(s): K. Najafian, M. S. Pettersson, B. Dynefors, H. Shiromaru, J. Matsumoto, H. Tanuma, T. Furukawa, T. Azuma and K. Hansen
  • Journal Title: The Journal of Chemical Physics Volume: 140 Issue: 10 Pages: 54306-54306
  • DOI: 10.1063/1.4867499
  • Peer Reviewed
• [Journal Article] Direct observation of internal energy distributions of C5- (2013)
  • Author(s): M. Goto, E. Sunden, H. Shiromaru, J. Matsumoto, H. Tanuma, T. Azuma, K. Hansen
  • Journal Title: The Journal of Chemical Physics Volume: 139 Issue: 5 Pages: 54306-54306
  • DOI: 10.1063/1.4817196
  • Peer Reviewed
• [Journal Article] Laser-induced thermal detachment of hot, large molecular ions under multiphoton- absorption conditions (2013)
  • Author(s): M. Goto, J. Matsumoto, H. Shiromaru, Y. Achiba, T. Majima, H. Tanuma, T. Azuma
  • Journal Title: Phys. Rev. A Volume: 87 Issue: 3 Pages: 33406-33406
  • DOI: 10.1103/physreva.87.033406
  • Peer Reviewed
• [Presentation] TMU E-ringを用いたC ^-の励起スペクトル測定 (2013)
  • Author(s): 河野直子, 松本淳, 古川武, 田沼肇, 東俊行, A. E. K. Sunden, K. Hansen, 城丸春夫
  • Organizer: 原子衝突学会第38回年会
  • Place of Presentation: 和光市
• [Presentation] μE-ringの製作と真空試験 (2013)
  • Author(s): 合田公大, 松本淳, 城丸春夫
  • Organizer: 原子衝突学会第38回年会
  • Place of Presentation: 和光市
• [Presentation] レーザー蒸発で生成したC_<2n>^- , C_<2n>Hの遅延電子脱離の観測 (2013)
  • Author(s): 稲墻旅人, 松本淳, 城丸春夫
  • Organizer: 原子衝突学会第38回年会
  • Place of Presentation: 和光市
• [Presentation] Construction of a tabletop electrostatic storage ring (2013)
  • Author(s): J. Matsumoto
  • Organizer: 5th International Workshop on Electrostatic Storage Devices
  • Place of Presentation: Heidelberg
• [Presentation] Fast radiative cooling of C_6 storage experiments (2013)
  • Author(s): G. Ito, T. Furukawa, T. Majima, H. Tanuma, J. Matsumoto, H. Shiromaru, M. Goto, T. Azuma, A. E. K. Sunden, K. Hansen
  • Organizer: revealed by ion第30回化学反応討論会
  • Place of Presentation: 仙台
• [Presentation] Construction of μE-ring (2013)
  • Author(s): K. Gouda, J. Matsumoto, H. Shiromaru
  • Organizer: 第30回化学反応討論会
  • Place of Presentation: 仙台
• [Presentation] イオン蓄積実験で観測されるC_5 , C_6 , C_6Hのサイズ特異的冷却過程 (2013)
  • Author(s): 後藤基, 松本淳, 城丸春夫, 伊藤源, 古川武, 田沼肇, 東俊行, A. E. K. Sunden, K. Hansen
  • Organizer: 日本化学会第93春季年会
  • Place of Presentation: 滋賀
• [Presentation] 静電型イオン蓄積リングを用いたC_6H^-,C_6のレーザー誘起遅延電子脱離過程の観測 (2013)
  • Author(s): 伊藤源, 村川卓也, 後藤基, 松本淳, 古川武, 間嶋拓也, 田沼肇, 城丸春夫, 東俊行
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島
• [Presentation] レーザー誘起遅延電子脱離反応を利用したC ^-炭素クラスター負イオンの輻射冷却過程の観測 (2013)
  • Author(s): 後藤基, A. E. K. Sunden, K. Hansen, 座間優, 松本淳, 城丸春夫, 伊藤源, 田沼肇, 東俊行
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島
• [Presentation] 卓上静電型イオン蓄積リングの作製 (2013)
  • Author(s): 松本淳, 合田公大, 城丸春夫
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島
• [Presentation] Construction of μE-ring (2013)
  • Author(s): K. Gouda, J. Matsumoto, H. Shiromaru
  • Organizer: 第29回化学反応討論会
  • Place of Presentation: 東北大学 片平キャンパス
• [Presentation] Construction of a tabletop electrostatic storage ring (2013)
  • Author(s): J. Matsumoto
  • Organizer: 5th International Workshop on Electrostatic Storage Devices
  • Place of Presentation: Max-Planck Institute for Nuclear Physics
  • Invited
• [Presentation] μE-ringの製作と真空試験 (2013)
  • Author(s): 合田公大, 松本淳, 城丸春夫
  • Organizer: 原子衝突学会第38回年会
  • Place of Presentation: 理化学研究所 本部・和光事業所
• [Presentation] 卓上静電型イオン蓄積リング（μE-ring）の作製 (2013)
  • Author(s): 松本淳，合田公大，城丸春夫
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島市
• [Presentation] Development of a portable electrostatic ion storage ring in TMU (2012)
  • Author(s): J. Matsumoto, H. Shiromaru
  • Organizer: The 19th International Mass Spectrometry Conference
  • Place of Presentation: 京都
• [Presentation] 卓上静電型イオン蓄積リング(μE-ring)の製作 (2012)
  • Author(s): 松本淳, 合田公大, 城丸春夫
  • Organizer: 第6回分子科学討論会
  • Place of Presentation: 東京
• [Presentation] 卓上静電型イオン蓄積リング(μE-ring)の現状 (2012)
  • Author(s): 松本淳, 合田公大, 城丸春夫
  • Organizer: 原子衝突学会第37回年会
  • Place of Presentation: 東京
• [Presentation] Development of a portable electrostatic ion storage ring (μE-ring) (2012)
  • Author(s): 松本淳，城丸春夫
  • Organizer: The 19th International Mass Spectrometry Conference
  • Place of Presentation: 京都市
  • Invited
• [Presentation] 卓上静電型イオン蓄積リング（μE-ring）の製作 (2012)
  • Author(s): 松本淳，合田公大，城丸春夫
  • Organizer: 第6回分子科学討論会
  • Place of Presentation: 東京都文京区