Vacuum spark x-ray source for high-speed photography
作者: Liyan ZhangEmilio Panarella
作者单位: Advanced Laser and Fusion Technology, Inc. (United States)
论文集英文名称: Other Conferences
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/12.273442
原始语种摘要: The vacuum spark is an excellent source of pulsed X-rays (also called flash X-rays) suitable for high speed photography. In the vacuum spark concept a capacitor is discharged through two properly shaped electrodes, made of selected materials, in a vacuum. This high current (over 1 kA) discharge produces intense pulsed hard X-rays with a pulse width of about 10 ns (FWHM, Full Width at Half Maximum). The measured source size by pinhole photography is smaller than 0.5 mm. Efforts have been made to reduced the total inductance (below 200 nH) and to use a relatively small capacitor (just a few nF), so as to increase the X-ray intensity. A vacuum spark X-ray source (VSX I) has been under routine operation at ALFT and has logged over 1,200 shots during X-ray tests carried out with Los Alamos...
全文获取路径: SPIE 

  • photography 摄影学
  • vacuum 真空
  • spark 火花
  • source 
  • excellent 优秀的
  • capacitor 电容器
  • width 幅度
  • speed 速率
  • logged 已记录
  • measured 量过的