Effect of a strong axial magnetic field in the plasma recombination and extreme ultraviolet emission from a highly-ionized capillary discharge

Journal Article · Mon Oct 01 00:00:00 EDT 1990 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/3.60905· OSTI ID:5937223

Marconi, M C; Rocca, J J; Schmerge, J F; Villagran, M ^[1]; Lehnmann, F J ^[2]

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1. Dept. of Electrical Engineering, Colorado State Univ., Fort Collins, CO (US)
2. Lockheed Advanced Development Co., Burbank, CA (US)

The effect of an externally-applied 70-100 kG axial magnetic field in the temporal evolution of the extreme ultraviolet emission from a 500 {mu}m diameter highly-ionized LiH capillary discharge has been studied. In the absence of external magnetic confinement, strong emission from ionic transitions excited by collisional recombination is observed at the end of the current pulse. The externally-applied magnetic field is observed to reduce the intensity of the recombination lines by decreasing the rate of plasma cooling by electron heat conduction to the capillary walls. In contrast, the self-generated magnetic field of the discharge aids to the generation of an initially hot plasma, and allows rapid conduction cooling at the end of the current pulse. The results are discussed in relation to a proposed capillary-discharge-exited extreme ultraviolet recombination laser scheme.

• OSTI ID: 5937223
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA), Vol. 26:10; ISSN 0018-9197
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
COLLISIONAL PLASMA
RECOMBINATION
LASERS
EXTREME ULTRAVIOLET SPECTRA
COOLING
ELECTRIC DISCHARGES
ELECTRONS
EMISSION SPECTRA
LITHIUM HYDRIDES
MAGNETIC FIELDS
PULSES
THERMAL CONDUCTION
USES
ALKALI METAL COMPOUNDS
ELEMENTARY PARTICLES
ENERGY TRANSFER
FERMIONS
HEAT TRANSFER
HYDRIDES
HYDROGEN COMPOUNDS
LEPTONS
LITHIUM COMPOUNDS
PLASMA
SPECTRA
ULTRAVIOLET SPECTRA
426002* - Engineering- Lasers & Masers- (1990-)