Experimental Measurements of Ion Heating in Collisional Plasma Shocks and Interpenetrating Supersonic Plasma Flows
Abstract
Here, we present time-resolved measurements of ion heating due to collisional plasma shocks and interpenetrating supersonic plasma flows, which are formed by the oblique merging of two coaxial-gun-formed plasma jets. Our study is repeated using four jet species: N, Ar, Kr, and Xe. In conditions with small interpenetration between jets, the observed peak ion temperature Ti is consistent with the predictions of collisional plasma-shock theory showing a substantial elevation of Ti above the electron temperature Te and also the subsequent decrease of Ti on the classical ion-electron temperature-equilibration timescale. In conditions of significant interpenetration between jets, such that shocks do not apparently form, the observed peak Ti is still appreciable and greater than Te but much lower than that predicted by collisional plasma-shock theory. Experimental results are compared with multifluid plasma simulations.
- Authors:
-
[1];
[2];
[1];
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of New Mexico, Albuquerque, NM (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Voss Scientific, Albuquerque, NM (United States)
- Univ. of New Mexico, Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- OSTI Identifier:
- 1482948
- Alternate Identifier(s):
- OSTI ID: 1480159
- Report Number(s):
- LA-UR-18-24240
Journal ID: ISSN 0031-9007; PRLTAO
- Grant/Contract Number:
- 89233218CNA000001; AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 121; Journal Issue: 18; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Shocks, Plasma Shock
Citation Formats
Langendorf, Samuel J., Yates, Kevin Colligan, Hsu, Scott C., Thoma, Carsten, and Gilmore, Mark Allen. Experimental Measurements of Ion Heating in Collisional Plasma Shocks and Interpenetrating Supersonic Plasma Flows. United States: N. p., 2018.
Web. doi:10.1103/PhysRevLett.121.185001.
Langendorf, Samuel J., Yates, Kevin Colligan, Hsu, Scott C., Thoma, Carsten, & Gilmore, Mark Allen. Experimental Measurements of Ion Heating in Collisional Plasma Shocks and Interpenetrating Supersonic Plasma Flows. United States. https://doi.org/10.1103/PhysRevLett.121.185001
Langendorf, Samuel J., Yates, Kevin Colligan, Hsu, Scott C., Thoma, Carsten, and Gilmore, Mark Allen. Wed .
"Experimental Measurements of Ion Heating in Collisional Plasma Shocks and Interpenetrating Supersonic Plasma Flows". United States. https://doi.org/10.1103/PhysRevLett.121.185001. https://www.osti.gov/servlets/purl/1482948.
@article{osti_1482948,
title = {Experimental Measurements of Ion Heating in Collisional Plasma Shocks and Interpenetrating Supersonic Plasma Flows},
author = {Langendorf, Samuel J. and Yates, Kevin Colligan and Hsu, Scott C. and Thoma, Carsten and Gilmore, Mark Allen},
abstractNote = {Here, we present time-resolved measurements of ion heating due to collisional plasma shocks and interpenetrating supersonic plasma flows, which are formed by the oblique merging of two coaxial-gun-formed plasma jets. Our study is repeated using four jet species: N, Ar, Kr, and Xe. In conditions with small interpenetration between jets, the observed peak ion temperature Ti is consistent with the predictions of collisional plasma-shock theory showing a substantial elevation of Ti above the electron temperature Te and also the subsequent decrease of Ti on the classical ion-electron temperature-equilibration timescale. In conditions of significant interpenetration between jets, such that shocks do not apparently form, the observed peak Ti is still appreciable and greater than Te but much lower than that predicted by collisional plasma-shock theory. Experimental results are compared with multifluid plasma simulations.},
doi = {10.1103/PhysRevLett.121.185001},
journal = {Physical Review Letters},
number = 18,
volume = 121,
place = {United States},
year = {Wed Oct 31 00:00:00 EDT 2018},
month = {Wed Oct 31 00:00:00 EDT 2018}
}
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Works referencing / citing this record:
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