X-Ray Spectra Produced by NaF Implosions

Abstract

Spatially-resolved x-ray spectra were collected of imploding sodium plasmas using Naval Research Laboratory Gamble 11 pulsed-power generator. A capillary-discharge was used as the source to inject sodium-fluoride plasmas for the fast Z-pinch implosion experiments. The plasma images recorded by curved- crystal spectrographs correspond to intense emission from a 3.5 cm long plasma column in the 4 cm interelectrode gap. Absolute emissivity values were obtained for the radiation emitted in the Na X and Na XI discrete transitions as well as for the total K-shell emission over the spectral range 800-1600 eV. Plasma parameters were determined from the measured spectral intensities compared to the ones predicted by plasma radiation theory. In regions near the nozzle, electron densities of several times 10 to the 21st power 3/cm and electron temperatures of 200-300 eV are generated. (kr)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 13, 1989
Accession Number
ADA215803

Entities

People

  • D. A. Newman
  • G. Mehlman
  • P. G. Burkhalter

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Atomic Structure
  • Blood
  • Electron Density
  • Electrons
  • Emission
  • Energy
  • Ground State
  • Ionization
  • Measurement
  • Military Research
  • Pulsed Power
  • Radiation
  • Spectra
  • Spectroscopy
  • Subatomic Particles
  • X Ray Spectra
  • X Rays

Fields of Study

  • Physics

Readers

  • Pulsed Power and Plasma Physics.
  • Solar Physics

Technology Areas

  • Microelectronics