Collisional heating and adiabatic expansion of warm dense matter with intense relativistic electrons
Abstract
Adiabatic expansion of a warm dense Ti plasma has been observed after isochoric heating of a 100 - μm -thick Ti foil with an ~ 100-ns-long intense relativistic electron bunch at an energy of 19.8 MeV and a current of 1.7 kA. The expansion fits well with the analytical point-source solution. After 10 J is deposited and the plasma rapidly expands out of the warm dense phase, a stable degenerate plasma (T ~ 1.2 eV) with ne > 1017 cm-3 is measured for > 100 ns. This is the first temporal measurement of the generation and adiabatic expansion of a large volume (3 × 10-4 cm3) of warm dense plasma isochorically heated by intense monochromatic electrons. The suite of diagnostics is presented, which includes time-resolved plasma plume expansion measurements on a single shot, visible spectroscopy measurements of the emission and absorption spectrum, measurements of the beam distribution, and plans for the future.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1505963
- Alternate Identifier(s):
- OSTI ID: 1369586
- Report Number(s):
- LA-UR-16-28312
Journal ID: ISSN 2470-0045; PLEEE8
- Grant/Contract Number:
- 89233218CNA000001; AC52-06NA25396
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Physical Review E
- Additional Journal Information:
- Journal Volume: 96; Journal Issue: 1; Journal ID: ISSN 2470-0045
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Coleman, Joshua Eugene, and Colgan, James Patrick. Collisional heating and adiabatic expansion of warm dense matter with intense relativistic electrons. United States: N. p., 2017.
Web. doi:10.1103/PhysRevE.96.013208.
Coleman, Joshua Eugene, & Colgan, James Patrick. Collisional heating and adiabatic expansion of warm dense matter with intense relativistic electrons. United States. https://doi.org/10.1103/PhysRevE.96.013208
Coleman, Joshua Eugene, and Colgan, James Patrick. 2017.
"Collisional heating and adiabatic expansion of warm dense matter with intense relativistic electrons". United States. https://doi.org/10.1103/PhysRevE.96.013208. https://www.osti.gov/servlets/purl/1505963.
@article{osti_1505963,
title = {Collisional heating and adiabatic expansion of warm dense matter with intense relativistic electrons},
author = {Coleman, Joshua Eugene and Colgan, James Patrick},
abstractNote = {Adiabatic expansion of a warm dense Ti plasma has been observed after isochoric heating of a 100 - μm -thick Ti foil with an ~ 100-ns-long intense relativistic electron bunch at an energy of 19.8 MeV and a current of 1.7 kA. The expansion fits well with the analytical point-source solution. After 10 J is deposited and the plasma rapidly expands out of the warm dense phase, a stable degenerate plasma (T ~ 1.2 eV) with ne > 1017 cm-3 is measured for > 100 ns. This is the first temporal measurement of the generation and adiabatic expansion of a large volume (3 × 10-4 cm3) of warm dense plasma isochorically heated by intense monochromatic electrons. The suite of diagnostics is presented, which includes time-resolved plasma plume expansion measurements on a single shot, visible spectroscopy measurements of the emission and absorption spectrum, measurements of the beam distribution, and plans for the future.},
doi = {10.1103/PhysRevE.96.013208},
url = {https://www.osti.gov/biblio/1505963},
journal = {Physical Review E},
issn = {2470-0045},
number = 1,
volume = 96,
place = {United States},
year = {Thu Jul 13 00:00:00 EDT 2017},
month = {Thu Jul 13 00:00:00 EDT 2017}
}
Web of Science
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