Study of the soft X-ray emission from carbon ions in a capillary discharge

Author

Rocca, Jorge J. ; Marconi, Mario C. ; Tomasel, F.G.

Author_Institution

Dept. of Electr. Eng., Colorado State Univ., Ft. Collins, CO, USA

Volume

29

Issue

1

fYear

1993

fDate

1/1/1993 12:00:00 AM

Firstpage

182

Lastpage

191

Abstract

The soft X-ray emission from plasma produced in polyacetal and polyethylene capillary discharges excited by current pulses 100 ns full-width half-maximum (FWHM), 50 ns risetime, and peak currents up to 60 kA has been studied. Time-resolved spectra show that intense C _VI line emission dominates in the polyethylene discharges, peaking shortly after the maximum of the current and vanishing before the end of the current pulse. Polyacetal capillary spectra are dominated by O_VI lines and show weak C_VI emission. Plasma density and temperature for the polyethylene discharge were derived from the Stark broadening of C _VI Balmer lines and the relative intensities of C _VI and C_V lines. A short (5 ns FWHM) pulse of energetic beam electrons was detected in coincidence with the onset of the discharge

Keywords

Stark effect; X-ray emission spectra of atoms; X-ray lasers; carbon; discharges (electric); positive ions; 100 ns; 60 kA; Balmer lines; C ions; Stark broadening; current pulses; energetic beam electrons; full-width half-maximum; line emission; peak currents; plasma density; plasma temperature; polyacetal; polyethylene capillary discharges; risetime; soft X-ray amplification; soft X-ray emission; soft X-ray recombination lasers; Carbon dioxide; Electrons; Laser excitation; Plasma density; Plasma waves; Plasma x-ray sources; Polyethylene; Pulse amplifiers; Pump lasers; X-ray lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.199258

Filename

199258