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Published on: August 18, 2017
A magnetic-bottle multi-electron-ion coincidence spectrometer.
Akitaka Matsuda1, Mizuho Fushitani, Chien-Ming Tseng
1Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, Aichi 444-8585, Japan.
The Review of Scientific Instruments
|November 4, 2011
Summary
A new spectrometer precisely measures electrons and ions simultaneously. This tool helps understand electron correlation in molecules like carbon disulfide (CS2) under intense laser light.
Area of Science:
- Atomic and Molecular Physics
- Quantum Chemistry
- Spectroscopy
Background:
- Understanding electron correlation is crucial for molecular dynamics.
- Previous methods faced limitations in simultaneous electron and ion detection efficiency and resolution.
Purpose of the Study:
- To present a novel multi-electron-ion coincidence spectrometer.
- To investigate electron correlation in carbon disulfide (CS2) double ionization.
- To explore molecular behavior under ultrashort intense laser fields.
Main Methods:
- Development of a 1.5 m magnetic-bottle electron spectrometer.
- Integration of optics and a pulsed electric field for ion extraction.
- Coincidence detection of electrons and ions.
Main Results:
- High mass resolution for ion detection achieved.
- High collection efficiency for electrons maintained.
- Demonstrated capability for studying double ionization dynamics.
Conclusions:
- The novel spectrometer enables detailed studies of electron correlation.
- The setup is effective for investigating molecular fragmentation under intense laser fields.
- Provides insights into processes below the electron rescattering threshold.
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