Observation of emission process in hydrogen-like nitrogen Z-pinch discharge with time integrated soft X-ray spectrum pinhole image
Abstract
The emission spectra of hydrogen-like nitrogen Balmer at the wavelength of 13.4 nm in capillary Z-pinch discharge plasma are experimentally examined. Ionization to fully strip nitrogen at the pinch maximum, and subsequent rapid expansion cooling are required to establish the population inversion between the principal quantum number of n = 2 and n = 3. The ionization and recombination processes with estimated plasma parameters are evaluated by utilizing a time integrated spectrum pinhole image containing radial spatial information. A cylindrical capillary plasma is pinched by a triangular pulsed current with peak amplitude of 50 kA and pulse width of 50 ns.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 01, 2013
- Source ID
- 10.1063/1.4789617
Entities
People
- E. Hotta
- H. Bin
- H. Kumai
- I. Song
- J. B. Rosenzweig
- M. Watanabe
- S. Takahashi
- T. Kawamura
- T. Komatsu
- Y. Hayashi
- Y. Ishizuka
- Y. Nakanishi
- Y. Sakai
- Yao Xiao
- Z. Quishi
Organizations
- Office of Naval Research
- Tokyo Institute of Technology
- United States Department of Energy
- University of California, Los Angeles