Abstract
Mass spectroscopic studies on a reactive laser ablation of graphite at 1064 nm in a pulsed oxygen jet have been performed. Significant changes in the relative enrichment of carbon ions including anomalous enrichment of C2+ ions as well as formation of CO+, C2O+, and C3O+ ions are observed. Collision-induced dissociation and reactive scattering of carbon ions prevail by injection of the oxygen jet to the carbon plume. Energetics of the ions is studied by using a time-of-flight quadrupole mass spectroscopy. Time-of-flight (TOF) spectra of each carbon ion consist of a fast and a slow component, which are considered to represent different formation mechanisms. By analyzing the changes of TOF spectra as a function of the delay time between the laser pulse and oxygen jet, we examine the effects of collisions on the formation of carbon ions.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 26, 2002, 8:16 a.m.) |
Deposited | 2 years, 2 months ago (June 26, 2023, 9:19 a.m.) |
Indexed | 1 year, 6 months ago (Feb. 10, 2024, 1:23 p.m.) |
Issued | 26 years, 9 months ago (Nov. 8, 1998) |
Published | 26 years, 9 months ago (Nov. 8, 1998) |
Published Print | 26 years, 9 months ago (Nov. 8, 1998) |
@article{Park_1998, title={Laser ablation of graphite in an oxygen jet}, volume={109}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.477461}, DOI={10.1063/1.477461}, number={18}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Park, Seung Min and Moon, Ji Youn}, year={1998}, month=nov, pages={8124–8129} }