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Charge-Exchange Emission from Hydrogen-Like Carbon Ions Colliding with Water Molecules

1
Physics Department, Auburn University, Allison Laboratory, Auburn, AL 36849, USA
2
Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
3
Advanced Research Center for Nanolithography, Science Park 110, 1098 XG Amsterdam, The Netherlands
*
Author to whom correspondence should be addressed.
Atoms 2019, 7(1), 17; https://doi.org/10.3390/atoms7010017
Received: 14 January 2019 / Revised: 27 January 2019 / Accepted: 29 January 2019 / Published: 1 February 2019
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Abstract

Absolute Extreme Ultraviolet emission cross-sections have been measured for collisions between C 5 + and H 2O in the range of 0.113 to 3.75 keV/amu (170–979 km/s). These results are used to derive velocity-dependent triplet-to-singlet ratios and emission cross-sections of the Cv K-series following single-electron capture. Comparison with existing measurements of integral charge-changing cross-sections indicates that auto-ionizing multi-electron capture is a significant reactions channel. This reaction may indirectly populate the n = 2 states and thus add strength to the K α emission of Cv ions thereby co-determining the hardness ratio of K-series emission of Cv. View Full-Text
Keywords: atomic data; molecular data; methods: laboratory: atomic; solar wind; comets: general; planets and satellites: aurorae atomic data; molecular data; methods: laboratory: atomic; solar wind; comets: general; planets and satellites: aurorae
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Bodewits, D.; Hoekstra, R. Charge-Exchange Emission from Hydrogen-Like Carbon Ions Colliding with Water Molecules. Atoms 2019, 7, 17.

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