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A new electron-ion coincidence 3D momentum-imaging method and its application in probing strong field dynamics of 2-phenylethyl-N, N-dimethylamine

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4981526· OSTI ID:1465981
 [1];  [2];  [2];  [3];  [4];  [4];  [4];  [4];  [4];  [3];  [2];  [2]
  1. Wayne State Univ., Detroit, MI (United States). Dept. of Chemistry; Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA
  2. Wayne State Univ., Detroit, MI (United States). Dept. of Chemistry
  3. Univ. of Liège (Belgium). Dept. of Chemistry
  4. Univ. of Colorado, Boulder, CO (United States). JILA
+ Show Author Affiliations

In this paper, we report the development of a new three-dimensional (3D) momentum-imaging setup based on conventional velocity map imaging to achieve the coincidence measurement of photoelectrons and photo-ions. This setup uses only one imaging detector (microchannel plates (MCP)/phosphor screen) but the voltages on electrodes are pulsed to push both electrons and ions toward the same detector. The ion-electron coincidence is achieved using two cameras to capture images of ions and electrons separately. The time-of-flight of ions and electrons are read out from MCP using a digitizer. We demonstrate this new system by studying the dissociative single and double ionization of PENNA (2-phenylethyl-N,N-dimethylamine). Finally, we further show that the camera-based 3D imaging system can operate at 10 kHz repetition rate.

Research Organization:
Wayne State Univ., Detroit, MI (United States); Univ. of Liège (Belgium)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Fund for Scientific Research (F.R.S.-FNRS) (Belgium)
Grant/Contract Number:
SC0012628
OSTI ID:
1465981
Alternate ID(s):
OSTI ID: 1361835
Journal Information:
Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 1 Vol. 147; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (3)

A coincidence velocity map imaging spectrometer for ions and high-energy electrons to study inner-shell photoionization of gas-phase molecules journal May 2019
Direct in-situ single-shot measurements of the absolute carrier-envelope phases of ultrashort pulses journal January 2019
A Coincidence Velocity Map Imaging Spectrometer for Ions and High-Energy Electrons to Study Inner-Shell Photoionization of Gas-Phase Molecules text January 2019

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
cameras
dissociation
electrodes
field desorption
image sensors
ionization
potential energy surfaces
three dimensional sensing
time of flight mass spectrometry
transition state theory