Measurements of ion velocity distributions in a large scale laser-produced plasma
Abstract
Laser-produced plasma velocity distributions are an important, but difficult quantity to measure. We present a non-invasive technique for measuring individual charge state velocity distributions of laser-produced plasmas using a high temporal and spectral resolution monochromator. The novel application of this technique is its ability to detect particles up to 7 m from their inception (significantly larger than most laboratory plasma astrophysics experiments, which take place at or below the millimeter scale). The design and assembly of this diagnostic is discussed in terms of maximizing the signal to noise ratio, maximizing the spatial and temporal resolution, and other potential use cases. The analysis and results of this diagnostic are demonstrated by directly measuring the time-of-flight velocity of all ion charge states in a laser produced carbon plasma.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 01, 2020
- Source ID
- 10.1063/5.0013447
Entities
People
- C. G. Constantin
- Christoph Niemann
- Derek Schaeffer
- P V Heuer
- R S Dorst
Organizations
- Defense Threat Reduction Agency
- Naval Information Warfare Center Pacific
- Princeton University
- United States Department of Energy
- University of California, Los Angeles