Generation of fast neutrals in a laser-blow-off of LiF-C film: A formation mechanism

Journal Article · Mon Apr 28 00:00:00 EDT 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2906368· OSTI ID:21102004

Singh, R K; Kumar, Ajai; Prahlad, V; Joshi, H C ^[1]

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1. Institute For Plasma Research Bhat, Gandhinagar 382 428 (India)

The temporal profiles of the spectral lines Li I and Li II emitted by a laser blow off of LiF-C film were analyzed. Fast neutrals having energies of {approx}310 eV were observed. It was found that these fast neutrals have kinetic energies similar to that of the ablated ions. Photon production rates at 670.8 nm were estimated for the recombination and charge exchange processes. We attempted to qualitatively understand the role of electron-ion recombination (two and three body recombinations) and charge exchange processes in producing observed fast neutrals. Our analysis indicates that charge exchange is the dominant process in the production of fast neutrals.

• OSTI ID: 21102004
• Journal Information: Applied Physics Letters, Vol. 92, Issue 17; Other Information: DOI: 10.1063/1.2906368; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON
CHARGE EXCHANGE
ELECTRON-ION COLLISIONS
EV RANGE 100-1000
KINETIC ENERGY
LASERS
LITHIUM FLUORIDES
RECOMBINATION
THIN FILMS
THREE-BODY PROBLEM