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Title: Observations of a field-aligned ion/ion-beam instability in a magnetized laboratory plasma

Collisionless coupling between super Alfvénic ions and an ambient plasma parallel to a background magnetic field is mediated by a set of electromagnetic ion/ion-beam instabilities including the resonant right hand instability (RHI). To study this coupling and its role in parallel shock formation, a new experimental configuration at the University of California, Los Angeles utilizes high-energy and high-repetition-rate lasers to create a super-Alfvénic field-aligned debris plasma within an ambient plasma in the Large Plasma Device. We used a time-resolved fluorescence monochromator and an array of Langmuir probes to characterize the laser plasma velocity distribution and density. The debris ions were observed to be sufficiently super-Alfvénic and dense to excite the RHI. Measurements with magnetic flux probes exhibited a right-hand circularly polarized frequency chirp consistent with the excitation of the RHI near the laser target. To conclude, we compared measurements to 2D hybrid simulations of the experiment.
Authors:
ORCiD logo [1] ; ORCiD logo [1] ;  [1] ;  [2] ;  [1] ; ORCiD logo [1] ;  [1] ;  [1] ;  [1] ; ORCiD logo [1] ;  [3]
  1. Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy
  2. Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy; Princeton Univ., NJ (United States). Dept. of Astrophysical Sciences
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Grant/Contract Number:
SC0006538; HDTRA1-12-1-0024; SC0006538:0003; SC0017900; 1414591; FC02-07ER54918; PHY-1561912
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 25; Journal Issue: 3; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
Univ. of California, Los Angeles, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE; USDOD, Defense Threat Reduction Agency (DTRA); National Science Foundation (NSF); Space and Naval Warfare Systems Command (SPAWAR)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 79 ASTRONOMY AND ASTROPHYSICS; Beam instability; parallel shock; plasma waves; Shock waves; Nonlinear acoustics; Spectroscopy; Time resolved spectroscopy; Lasers; Particle beam optics; Chemical analysis; Optical metrology; Hydrodynamic waves; Plasma devices
OSTI Identifier:
1429109
Alternate Identifier(s):
OSTI ID: 1423402

Heuer, P. V., Weidl, M. S., Dorst, R. S., Schaeffer, D. B., Bondarenko, A. S., Tripathi, S. K. P., Van Compernolle, B., Vincena, S., Constantin, C. G., Niemann, C., and Winske, D.. Observations of a field-aligned ion/ion-beam instability in a magnetized laboratory plasma. United States: N. p., Web. doi:10.1063/1.5017637.
Heuer, P. V., Weidl, M. S., Dorst, R. S., Schaeffer, D. B., Bondarenko, A. S., Tripathi, S. K. P., Van Compernolle, B., Vincena, S., Constantin, C. G., Niemann, C., & Winske, D.. Observations of a field-aligned ion/ion-beam instability in a magnetized laboratory plasma. United States. doi:10.1063/1.5017637.
Heuer, P. V., Weidl, M. S., Dorst, R. S., Schaeffer, D. B., Bondarenko, A. S., Tripathi, S. K. P., Van Compernolle, B., Vincena, S., Constantin, C. G., Niemann, C., and Winske, D.. 2018. "Observations of a field-aligned ion/ion-beam instability in a magnetized laboratory plasma". United States. doi:10.1063/1.5017637.
@article{osti_1429109,
title = {Observations of a field-aligned ion/ion-beam instability in a magnetized laboratory plasma},
author = {Heuer, P. V. and Weidl, M. S. and Dorst, R. S. and Schaeffer, D. B. and Bondarenko, A. S. and Tripathi, S. K. P. and Van Compernolle, B. and Vincena, S. and Constantin, C. G. and Niemann, C. and Winske, D.},
abstractNote = {Collisionless coupling between super Alfvénic ions and an ambient plasma parallel to a background magnetic field is mediated by a set of electromagnetic ion/ion-beam instabilities including the resonant right hand instability (RHI). To study this coupling and its role in parallel shock formation, a new experimental configuration at the University of California, Los Angeles utilizes high-energy and high-repetition-rate lasers to create a super-Alfvénic field-aligned debris plasma within an ambient plasma in the Large Plasma Device. We used a time-resolved fluorescence monochromator and an array of Langmuir probes to characterize the laser plasma velocity distribution and density. The debris ions were observed to be sufficiently super-Alfvénic and dense to excite the RHI. Measurements with magnetic flux probes exhibited a right-hand circularly polarized frequency chirp consistent with the excitation of the RHI near the laser target. To conclude, we compared measurements to 2D hybrid simulations of the experiment.},
doi = {10.1063/1.5017637},
journal = {Physics of Plasmas},
number = 3,
volume = 25,
place = {United States},
year = {2018},
month = {3}
}