Comparison of excitation and kinetic temperatures in a laser-produced plasma using absorption spectroscopy
Abstract
High-resolution tunable laser absorption spectroscopy is used to measure time-resolved absorption spectra for six neutral uranium transitions in a laser-produced plasma. Analysis of the spectra shows that kinetic temperatures are similar for all six transitions, but excitation temperatures are higher than kinetic temperatures from 10–100 μs, indicating departures from local thermodynamic equilibrium.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 30, 2023
- Source ID
- 10.1364/ol.487910
Entities
People
- Elizabeth J Kautz
- Mark C. Phillips
- S. S. Harilal
Organizations
- Defense Threat Reduction Agency
- North Carolina State University
- Pacific Northwest National Laboratory
- University of Arizona