Title :
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
fDate :
1/1/1993 12:00:00 AM
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 OVI lines and show weak CVI 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 CV 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;
Journal_Title :
Quantum Electronics, IEEE Journal of
