Characterization of an atomic hydrogen source for charge exchange experiments

Journal Article · Tue Nov 15 00:00:00 EST 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4959919· OSTI ID:22596586

Leutenegger, M. A. ^[1]; Beiersdorfer, P.; Brown, G. V.; Magee, E. W. ^[2]; Betancourt-Martinez, G. L. ^[1]; Hell, N. ^[2]; Kelley, R. L.; Kilbourne, C. A.; Porter, F. S. ^[1]

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1. NASA Goddard Space Flight Center, Code 662, Greenbelt, Maryland 20771 (United States)
2. Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California 94550 (United States)

We characterized the dissociation fraction of a thermal dissociation atomic hydrogen source by injecting the mixed atomic and molecular output of the source into an electron beam ion trap containing highly charged ions and recording the x-ray spectrum generated by charge exchange using a high-resolution x-ray calorimeter spectrometer. We exploit the fact that the charge exchange state-selective capture cross sections are very different for atomic and molecular hydrogen incident on the same ions, enabling a clear spectroscopic diagnostic of the neutral species.

• OSTI ID: 22596586
• Journal Information: Review of Scientific Instruments, Vol. 87, Issue 11; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CALORIMETERS
CAPTURE
CHARGE EXCHANGE
CROSS SECTIONS
DISSOCIATION
ELECTRON BEAMS
ELECTRONS
HYDROGEN
IONS
RESOLUTION
SPECTROMETERS
X RADIATION
X-RAY SPECTRA