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Title: Quantitative study of the trapped particle bunching instability in Langmuir waves

Abstract

Here, the bunching instability of particles trapped in Langmuir waves is studied using Vlasov simulations. A measure of particle bunching is defined and used to extract the growth rate from numerical simulations, which are compared with theory [Dodin et al., Phys. Rev. Lett. 110, 215006 (2013)]. In addition, the general theory of trapped particle instability in 1D is revisited and a more accurate description of the dispersion relation is obtained. Excellent agreement between numerical and theoretical predictions of growth rates of the bunching instability is shown over a range of parameters.

Authors:
ORCiD logo [1];  [2];  [3];  [4];  [2];  [2];  [1]
+ Show Author Affiliations
  1. Univ. of Michigan, Ann Arbor, MI (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Rensselaer Polytechnic Inst., Troy, NY (United States)
  4. Ecole Polytechnique Federale Lausanne (EPFL Switzerland)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Fusion Energy Sciences (FES)
OSTI Identifier:
1880964
Alternate Identifier(s):
OSTI ID: 1228510
Report Number(s):
LLNL-JRNL-660076
Journal ID: ISSN 1070-664X; 780400; TRN: US2307793
Grant/Contract Number:  
AC52-07NA27344; DESC0001939; 12- ERD-061
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 22; Journal Issue: 2; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Plasma waves; Leptons; Particle distributions; Vlasov equation; Fourier analysis; Dispersion function; Generalized functions; Wave mechanics; Laser plasma interactions; Plasma instabilities

Citation Formats

Hara, Kentaro, Chapman, Thomas, Banks, Jeffrey W., Brunner, Stephan, Joseph, Ilon, Berger, Richard L., and Boyd, Iain D. Quantitative study of the trapped particle bunching instability in Langmuir waves. United States: N. p., 2015. Web. doi:10.1063/1.4906884.
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Hara, Kentaro, Chapman, Thomas, Banks, Jeffrey W., Brunner, Stephan, Joseph, Ilon, Berger, Richard L., & Boyd, Iain D. Quantitative study of the trapped particle bunching instability in Langmuir waves. United States. https://doi.org/10.1063/1.4906884
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Hara, Kentaro, Chapman, Thomas, Banks, Jeffrey W., Brunner, Stephan, Joseph, Ilon, Berger, Richard L., and Boyd, Iain D. Tue . "Quantitative study of the trapped particle bunching instability in Langmuir waves". United States. https://doi.org/10.1063/1.4906884. https://www.osti.gov/servlets/purl/1880964.
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@article{osti_1880964,
title = {Quantitative study of the trapped particle bunching instability in Langmuir waves},
author = {Hara, Kentaro and Chapman, Thomas and Banks, Jeffrey W. and Brunner, Stephan and Joseph, Ilon and Berger, Richard L. and Boyd, Iain D.},
abstractNote = {Here, the bunching instability of particles trapped in Langmuir waves is studied using Vlasov simulations. A measure of particle bunching is defined and used to extract the growth rate from numerical simulations, which are compared with theory [Dodin et al., Phys. Rev. Lett. 110, 215006 (2013)]. In addition, the general theory of trapped particle instability in 1D is revisited and a more accurate description of the dispersion relation is obtained. Excellent agreement between numerical and theoretical predictions of growth rates of the bunching instability is shown over a range of parameters.},
doi = {10.1063/1.4906884},
journal = {Physics of Plasmas},
number = 2,
volume = 22,
place = {United States},
year = {Tue Feb 03 00:00:00 EST 2015},
month = {Tue Feb 03 00:00:00 EST 2015}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1063/1.4906884
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Cited by: 12 works
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