Electron Plasmas Cooled by Cyclotron-Cavity Resonance

Povilus, A. P.; DeTal, N. D.; Evans, L. T.; Evetts, N.; Fajans, J.; Hardy, W. N.; Hunter, E. D.; Martens, I.; Robicheaux, F.; Shanman, S.; So, C.; Wang, X.; Wurtele, J. S.

doi:10.1103/PhysRevLett.117.175001

Title: Electron Plasmas Cooled by Cyclotron-Cavity Resonance

Journal Article · Fri Oct 21 00:00:00 EDT 2016 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.117.175001· OSTI ID:1438653

Povilus, A. P. ^[1]; DeTal, N. D. ^[2]; Evans, L. T. ^[3]; Evetts, N. ^[4]; Fajans, J. ^[3]; Hardy, W. N. ^[4]; Hunter, E. D. ^[3]; Martens, I. ^[5]; Robicheaux, F. ^[6]; Shanman, S. ^[3]; So, C. ^[3]; Wang, X. ^[6]; Wurtele, J. S. ^[3]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States). Dept. of Physics
Beloit College, WI (United States). Dept. of Physics and Astronomy
Univ. of California, Berkeley, CA (United States). Dept. of Physics
Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Physics and Astronomy
Univ. of British Columbia, Vancouver, BC (Canada). Dept. of Chemistry
Purdue Univ., West Lafayette, IN (United States). Dept. of Physics and Astronomy

We observe that high-Q electromagnetic cavity resonances increase the cyclotron cooling rate of pure electron plasmas held in a Penning-Malmberg trap when the electron cyclotron frequency, controlled by tuning the magnetic field, matches the frequency of standing wave modes in the cavity. For certain modes and trapping configurations, this can increase the cooling rate by factors of 10 or more. In this paper, we investigate the variation of the cooling rate and equilibrium plasma temperatures over a wide range of parameters, including the plasma density, plasma position, electron number, and magnetic field.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States); Purdue Univ., West Lafayette, IN (United States); Univ. of British Columbia, Vancouver, BC (Canada)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); National Science Foundation (NSF); Natural Sciences and Engineering Research Council of Canada (NSERC)

Grant/Contract Number:: AC52-07NA27344; FG02-06ER54904; SC0014446; 1500538-PHY; 1500470-PHY; SAPPJ-2014-0026

OSTI ID:: 1438653

Alternate ID(s):: OSTI ID: 1329515

Report Number(s):: LLNL-JRNL-693077; TRN: US1900476

Journal Information:: Physical Review Letters, Vol. 117, Issue 17; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 5 works

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Cited By (1)

Low magnetic field cooling of lepton plasmas via cyclotron-cavity resonance Hunter, E. D.; Evetts, N.; Fajans, J. Physics of Plasmas, Vol. 25, Issue 1 https://doi.org/10.1063/1.5006700	journal	January 2018

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74 ATOMIC AND MOLECULAR PHYSICS
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