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Title: A Coincidence Velocity Map Imaging Spectrometer for Ions and High-Energy Electrons to Study Inner-Shell Photoionization of Gas-Phase Molecules

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.5093420· OSTI ID:1508084
 [1];  [2];  [3];  [4];  [5];  [6];  [4];  [7];  [4];  [8];  [9];  [10];  [11];  [12];  [4];  [10]
  1. Kansas State Univ., Manhattan, KS (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  3. Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany
  4. Univ. of Connecticut, Storrs, CT (United States)
  5. J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS, USA
  6. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  7. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of Connecticut, Storrs, CT (United States)
  8. Hobart and William Smith Colleges, Geneva, NY (United States)
  9. Kansas State Univ., Manhattan, KS (United States); Max Planck Inst. for Nuclear Physics, Heidelberg (Germany)
  10. Kansas State Univ., Manhattan, KS (United States)
  11. Max Planck Inst. for Nuclear Physics, Heidelberg (Germany); Univ. of California, Berkeley, CA (United States)
  12. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
+ Show Author Affiliations

We report on the design and performance of a double-sided coincidence velocity map imaging spectrometer optimized for electron-ion and ion-ion coincidence experiments studying inner-shell photoionization of gas-phase molecules with soft X-ray synchrotron radiation. The apparatus employs two microchannel plate detectors equipped with delay-line anodes for coincident, time- and position-resolved detection of photoelectrons and Auger electrons with kinetic energies up to 300 eV on one side of the spectrometer and photoions up to 25 eV per unit charge on the opposite side. We demonstrate its capabilities by measuring valence photoelectrons and ion spectra of neon and nitrogen and by studying channel-resolved photoelectron and Auger spectra along with fragment-ion momentum correlations for chlorine 2p inner-shell ionization of cis- and trans-1,2-dichloroethene.

Research Organization:
Kansas State Univ., Manhattan, KS (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
Grant/Contract Number:
FG02-86ER13491; AC02-05CH11231
OSTI ID:
1508084
Alternate ID(s):
OSTI ID: 1580833
Journal Information:
Review of Scientific Instruments, Vol. 90, Issue 5; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (43)

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Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
Velocity Map Imaging
photoionization
synchrotron radiation
electron-ion coincidences
photoelectron spectroscopy
ion momentum imaging