Experiment study of discharge characteristics and pumping efficiency of air bubble flash lamp

  • Zefeng Yang
  • , Xingwen Li
  • , Yongpeng Mo
  • , Shenli Jia
  • , Jianjun Liu
  • , Haibing Li

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The improvement of the amplifier gain and amplifier efficiency is quite attractive in inertia confined fusion (ICF). As an important component of the amplifier, the flash lamp pumping efficiency directly affects the amplifier efficiency. In this paper, a new structure of flash lamp is designed and constructed, going for a higher pumping efficiency. Comparison between the new and the traditional structures are made, in terms of electrical characteristics, radiation and fluorescence behaviors of Nd: glass. Experimental results indicate that the resistance increases in the new structure, corresponding to a lower current and energy feeding. As a result, the intensities of radiation and fluorescence are improved by 3%~4% and 2%~3% respectively. The mechanisms of the improvement, the evolution of the discharge plasma channel, and the scheme of further optimization for the new structure are discussed.

Original languageEnglish
Article number092006
JournalQiangjiguang Yu Lizishu/High Power Laser and Particle Beams
Volume27
Issue number9
DOIs
StatePublished - 1 Sep 2015

Keywords

  • Air bubble flash lamp
  • Current areal density
  • Energy
  • Fluorescence
  • Radiation

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