Back to Search Start Over

Effect of Multipulse Waveform on Gains of Soft X-Ray Lines of Lithium-Like Aluminum Ions in Recombining Plasmas

Authors :
Okasaka, Kazunobu
Kawachi, Tetsuya
Oyama, Hitoshi
Hara, Tamio
Yamaguchi, Naohiro
Ando, Kozo
Source :
Japanese Journal of Applied Physics; January 2000, Vol. 39 Issue: 1 p70-70, 1p
Publication Year :
2000

Abstract

Using the recombination plasma scheme, we investigated the amplified spontaneous emissions (ASE) from lithium-like aluminum plasmas produced by multipulse laser irradiation. Three types of multipulse waveforms of Nd-glass laser beam were treated. We measured the time-integrated intensities of the 3d-4f (15.5 nm) and the 3d-5f (10.6 nm) lines of lithium-like aluminum ions for 2.5-cm-long and 1.25-cm-long plasmas. The effective time-averaged gains estimated from these time-integrated intensities varied with the multipulse waveforms. Using a hydrodynamic simulation, we discussed the time history of plasma parameters in the recombining plasma. We concluded that the modifying multipulse waveform contributed to the effective time-averaged gain by maintaining the helium-like ion density until the gain was generated.

Details

Language :
English
ISSN :
00214922 and 13474065
Volume :
39
Issue :
1
Database :
Supplemental Index
Journal :
Japanese Journal of Applied Physics
Publication Type :
Periodical
Accession number :
ejs56135837
Full Text :
https://doi.org/10.1143/JJAP.39.70