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Characterization of an Atomic Hydrogen Source for Charge Exchange ExperimentsWe characterized the dissociation fraction of a thermal dissociation atomic hydrogen source byinjecting the mixed atomic and molecular output of the source into an electron beam ion trapcontaining highly charged ions and recording the x-ray spectrum generated by charge exchangeusing a high-resolution x-ray calorimeter spectrometer. We exploit the fact that the charge exchangestate-selective capture cross sections are very different for atomic and molecular hydrogen incidenton the same ions, enabling a clear spectroscopic diagnostic of the neutral species.
Document ID
20170005822
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Leutenegger, M. A.
(Maryland Univ. Baltimore County Baltimore, MD, United States)
Beierdorfer, P.
(Lawrence Livermore National Lab. Livermore, CA, United States)
Betancourt-Martinez, G. L.
(Maryland Univ. College Park, MD, United States)
Brown, G. V.
(Lawrence Livermore National Lab. Livermore, CA, United States)
Hell, N
(Lawrence Livermore National Lab. Livermore, CA, United States)
Kelley, R. L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kilbourne, C. A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Magee, E. W.
(Lawrence Livermore National Lab. Livermore, CA, United States)
Porter, F. S.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
June 28, 2017
Publication Date
August 3, 2016
Publication Information
Publication: Review of Scientific Instruments
Publisher: American Institute of Physics
Volume: 87
Issue: 11
ISSN: 0034-6748
e-ISSN: 1089-7623
Subject Category
Astrophysics
Report/Patent Number
GSFC-E-DAA-TN43568
Meeting Information
Meeting: Tropical Conference on High-Temperature Plasma Diagnostics
Location: Madison, WI
Country: United States
Start Date: June 5, 2016
End Date: June 9, 2016
Sponsors: Wisconsin-Madison Univ.
Funding Number(s)
CONTRACT_GRANT: NNG17PT01A
CONTRACT_GRANT: DE-AC52-07NA27344
Distribution Limits
Public
Copyright
Other
Keywords
issociationX-ray spectrometersX-ray spectraMolecular dissociationCharge exchange

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