Visualization of electron transfer in matter with a time-resolved Reaction microscope for electron Compton scattering

2012 Fiscal Year Final Research Report

• Project/Area Number: 20225001
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Physical chemistry
• Research Institution: Tohoku University
• Principal Investigator: TAKAHASHI Masahiko 東北大学, 多元物質科学研究所, 教授 (80241579)
• Co-Investigator(Renkei-kenkyūsha): WATANABE Noboru 東北大学, 多元物質科学研究所, 准教授 (90312660) ; YAMAZAKI Masakazu 東北大学, 多元物質科学研究所, 助教 (00533465)
• Research Collaborator: YURI Popov モスクワ大学, 核物理研究所, 教授 ; KONSTANTION Kouzakov モスクワ大学, 核物理研究所, 教授 ; OTTMAR Jagutzki フランクフルト大学, 核物理研究所, 助教
• Project Period (FY): 2008 – 2012
• Keywords: 励起分子素過程

Research Abstract

The aim of this project is to develop time-resolved electron momentum spectroscopy. It is a unique means that allows one to see the change of electron motion in transient species, which is the driving force behind any chemical reactions. While there remains an ample room for improving experimental qualities, we have successfully made the first observation of the change of electron motion during chemical reactions, such as the three-body photodissociation dynamics of the acetone molecule at 195 nm.

Research Products

• [Journal Article] Molecular-frame (e,2e) experiment for N2 at large momentum transfer (2013)
  • Author(s): D. B. Jones, M. Yamazaki, N. Watanabe, M. Takahashi
  • Journal Title: Physical Review A Volume: 87 Pages: 022714-1-5
  • DOI: DOI:10.1103/PhysRevA.87.022714
  • Peer Reviewed
• [Journal Article] Interference effects on (e, 2e) electron momentum profiles of CF4 (2012)
  • Author(s): N. Watanabe, X. J. Chen, M. Takahashi
  • Journal Title: Physical Review Letters Volume: 108 Pages: 173201-1-5
  • DOI: DOI:10.1103/PhysRevLett.108.173201
  • Peer Reviewed
• [Journal Article] Vibrational effects on valence electron momentum distributions of ethylene (2012)
  • Author(s): N. Watanabe, M. Yamazaki, M. Takahashi
  • Journal Title: Journal of Chemical Physics Volume: 137 Pages: 114301-1-8
  • DOI: DOI:10.1063/1.4752653
  • Peer Reviewed
• [Journal Article] A highly sensitive electron momentum spectrometer incorporating a multiparticle imaging detector (2011)
  • Author(s): M. Yamazaki, H. Satoh, M. Ueda, D. B. Jones, Y. Asano, N. Watanabe, A. Czasch, O. Jagutzki, M. Takahashi
  • Journal Title: Measurement Science and Technology Volume: 22 Pages: 075602-1-13
  • DOI: DOI:10.1088/0957-0233/22/7/075602
  • Peer Reviewed
• [Journal Article] Laser-assisted electron momentum spectroscopy (2010)
  • Author(s): K. A. Kouzakov, Yu. V. Popov, M. Takahashi
  • Journal Title: Physical Review A Volume: 82 Pages: 023410-1-14
  • DOI: DOI:10.1103/PhysRevA.82.023410
  • Peer Reviewed
• [Presentation] Development of time-resolved (e,2e) electron momentum spectroscopy: the present status of experimental and theoretical progress (2012)
  • Author(s): M. Takahashi
  • Organizer: 10th Asian International Seminar on Atomic and Molecular Physics(招待講演)
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2012-10-26
• [Presentation] Progress towards development of time-resolved (e,2e) electron momentum spectroscopy, International Conference on Many Particle Spectroscopy of Atoms (2012)
  • Author(s): M. Yamazaki, M. Takahashi
  • Organizer: Molecules, Clusters and Surfaces(招待講演)
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2012-08-29
• [Presentation] Towards next-generation electron momentum spectroscopy experiments (2012)
  • Author(s): M. Takahashi
  • Organizer: 2nd International Symposium on Electron Momentum Spectroscopy(招待基調講演)
  • Place of Presentation: Brussels, Belgium
  • Year and Date: 2012-08-23
• [Presentation] 電子コンプトン散乱を用いた原子分子物理 (2012)
  • Author(s): 高橋正彦
  • Organizer: 第9回原子・分子・光科学(AMO)討論会(招待講演)
  • Place of Presentation: 理化学研究所(埼玉県)
  • Year and Date: 2012-06-16
• [Presentation] Towards understanding of molecular effect in (e,2e) cross sections at large momentum transfer (2011)
  • Author(s): M. Takahashi
  • Organizer: International Symposium on (e,2e), Double Photoionization and Related Topics (招待講演)
  • Place of Presentation: Dublin, Ireland
  • Year and Date: 2011-08-04
• [Book] Cambridge University Press (2012)
  • Author(s): J. Lower, M. Yamazaki, M. Takahashi
  • Total Pages: 158-177
  • Publisher: (e,2e) spectroscopy using fragmentation processes, in Fragmentation Processes
• [Remarks]
  • URL: http://www.tagen.tohoku.ac.jp/modules/ laboratory/index.php?laboid=42