Publications

2014

D. B. Schaeffer, E. T. Everson, A. S. Bondarenko, S. E. Clark, C. G. Constantin, S. Vincena, B. Van Compernolle, S. K. P. Tripathi, D. Winske, W. Gekelman, and C. Niemann, Laser-driven, magnetized quasi-perpendicular collisionless shocks on the Large Plasma Device, Phys. Plasmas, 21, 056312 (2014) [http://dx.doi.org/10.1063/1.4876608]

Wang, Y. and Gekelman, W. and Pribyl, P. and Papadopoulos, K., Enhanced loss of magnetic-mirror-trapped fast electrons by a shear Alfvén wave, Physics of Plasmas (1994-present), 21, 055705 (2014), DOI:http://dx.doi.org/10.1063/1.4874332

B. Van Compernolle, J. Bortnik, P. Pribyl, W. Gekelman, M. Nakamoto, X. Tao, and R. M. Thorne, Direct Detection of Resonant Electron Pitch Angle Scattering by Whistler Waves in a Laboratory Plasma, Phys. Rev. Lett. 112, 145006 – Published 10 April 2014 , http://dx.doi.org/10.1103/PhysRevLett.112.145006

Walter Gekelman, Bart Van Compernolle, Tim DeHaas and Stephen Vincena, Chaos in magnetic flux ropes, Plasma Phys. Control. Fusion 56 (2014) 064002 (18pp), doi:10.1088/0741-3335/56/6/064002

2013

Yiting Zhang, Mark J. Kushner, Nathaniel Moore, Patrick Pribyl, and Walter Gekelman, Space and phase resolved ion energy and angular distributions in single- and dual-frequency capacitively coupled plasmas, J. Vac. Sci. Technol. A 31(6), Nov/Dec 2013, [http://dx.doi.org/10.1116/1.4822100]

D. J. Drake, J. W. R. Schroeder, G. G. Howes, C. A. Kletzing, F. Skiff, T. A. Carter, and D. W. Auerbach, Alfvén wave collisions, the fundamental building block of plasma turbulence. IV. Laboratory experiment, Phys. Plasmas 20, 072901 (2013); http://dx.doi.org/10.1063/1.4813242

G. G. Howes, K. D. Nielson, D. J. Drake, J. W. R. Schroeder, F. Skiff, C. A. Kletzing, and T. A. Carter, Alfvén wave collisions, the fundamental building block of plasma turbulence. III. Theory for experimental design, Phys. Plasmas 20, 072304 (2013); http://dx.doi.org/10.1063/1.4812808

W. A. Farmer and G. J. Morales, Propagation of shear Alfvén waves in two-ion species plasmas confined by a nonuniform magnetic field, Phys. Plasmas 20, 082132 (2013); http://dx.doi.org/10.1063/1.4819776

Nathaniel B. Moore, Walter Gekelman Patrick Pribyl, Yiting Zhang, and Mark J. Kushner, 2-dimensional ion velocity distributions measured by laser-induced fluorescence above a radio-frequency biased silicon wafer, Phys. Plasmas, 20, 083506 (2013) DOI: [http://dx.doi.org/10.1063/1.4817275]

C.M. Cooper and W. Gekelman, Termination of a Magnetized Plasma on a Neutral Gas: The End of the Plasma, Phys. Rev. Lett., 110, 265001 (2013), DOI: 10.1103/PhysRevLett.110.265001

J. E. Maggs and G. J. Morales, Permutation entropy analysis of temperature fluctuations from a basic electron heat transport experiment, Plasma Phys. Control. Fusion 55 (2013) 085015 (7pp), doi:10.1088/0741-3335/55/8/085015

Y. Wang, W. Gekelman, and P. Pribyl, Hard x-ray tomographic studies of the destruction of an energetic electron ring, Rev. Sci. Instrum., v84, 053503 (2013) ; DOI:10.1063/1.4804354

D. A. Schaffner, T. A. Carter, G. D. Rossi, D. S. Guice, J. E. Maggs, S. Vincena, and B. Friedman, Turbulence and transport suppression scaling with flow shear on the Large Plasma Device, Phys. Plasmas 20, 055907 (2013); DOI: http://dx.doi.org/10.1063/1.4804637

B. Friedman, T. A. Carter, M. V. Umansky, D. Schaffner, and I. Joseph, Nonlinear instability in simulations of Large Plasma Device turbulence, Phys. Plasmas 20, 055704 (2013); DOI: http://dx.doi.org/10.1063/1.4805084

S. Dorfman and T. A. Carter, Nonlinear Excitation of Acoustic Modes by Large-Amplitude Alfvén Waves in a Laboratory Plasma, Phys. Rev. Lett., 110, 195001 (2013) DOI: 10.1103/PhysRevLett.110.195001

S.K.P. Tripathi and W. Gekelman, Dynamics of an Erupting Arched Magnetic Flux Rope in a Laboratory Plasma Experiment, Solar Phys., 0038-0938 (2013) DOI: 10.1007/s11207-013-0257-0

S. T. Vincena, W. A. Farmer, J. E. Maggs, and G. J. Morales, Investigation of an ion-ion hybrid Alfvén wave resonator, Phys. Plasmas, 20, 012110 (2013) http://dx.doi.org/10.1063/1.4775777.

C. Niemann, W. Gekelman, C. G. Constantin, E. T. Everson, D. B. Schaeffer, S. E. Clark, D. Winske, A. B. Zylstra, P. Pribyl, S. K. P. Tripathi, D. Larson, S. H. Glenzer, and A. S. Bondarenk, Dynamics of exploding plasmas in a large magnetized plasma, Phys. Plasmas 20, 012108 (2013).

2012

G. G. Howes, D. J. Drake, K. D. Nielson, T. A. Carter, C. A. Kletzing, and F. Skiff, Toward astrophysical turbulence in the laboratory, Phys. Rev. Lett. 109, 255001 (2012); http://dx.doi.org/10.1103/PhysRevLett.109.255001.

J.E. Maggs and G.J. Morales, Exponential power spectra, deterministic chaos and Lorentzian pulses in plasma edge dynamics, Plasma Phys. Control. Fusion, 54, 124041 (2012) doi:10.1088/0741-3335/54/12/124041

W W Heidbrink, H Boehmer, R McWilliams, A Preiwisch, Y Zhang, L Zhao, S Zhou, A Bovet, A Fasoli, I Furno, K Gustafson, P Ricci, T Carter, D Leneman, S K P Tripathi, and S Vincena, Measurements of interactions between waves and energetic ions in basic plasma experiments, Plasma Phys. Control. Fusion, v54, 124007 (2012); doi:10.1088/0741-3335/54/12/124007

B. Friedman, T. A. Carter, M. V. Umansky, D. Schaffner, and B. Dudson, Energy dynamics in a simulation of LAPD turbulence, Phys. Plasmas, 102307 (2012); http://dx.doi.org/10.1063/1.4759010.

C. Niemann, C.G. Constantin, D.B. Schaeffer, A. Tauschwitz, T. Weiland, Z. Lucky, W. Gekelman, E.T. Everson, and D. Winske, High-energy Nd:glass laser facility for collisionless laboratory astrophysics, JINST 7 P03010 (2012); doi:10.1088/1748-0221/7/03/P03010.

B. Van Compernolle and W. Gekelman, Morphology and dynamics of three interacting kink-unstable flux ropes in a laboratory magnetoplasma, Phys. Plasmas 19, 102102 (2012); http://dx.doi.org/10.1063/1.4755949.

D. A. Schaffner, T. A Carter, G. D. Rossi, D. S. Guice, J. E. Maggs, S. Vincena, and B. Friedman, Modification of Turbulent Transport with Continuous Variation of Flow Shear in the Large Plasma Device, Phys. Rev. Lett. 109, 135002 (2012); DOI: 10.1103/PhysRevLett.109.135002.

J.E. Maggs and G.J. Morales, Origin of Lorentzian pulses in deterministic chaos, Phys. Rev. E 86, 015401(R) (2012) DOI: 10.1103/PhysRevE.86.015401

W..A. Farmer and G.J. Morales, Cherenkov radiation of shear Alfvén waves in plasmas with two ion species, Phys Plasmas, 19, 092109 (2012); [http://dx.doi.org/10.1063/1.4751462].

W. Gekelman, E. Lawrence, and B. Van Compernolle, Three-dimensional reconnection involving magnetic flux ropes, ApJ, 753:131, (2012); [doi:10.1088/0004-637X/753/2/131].

A. V. Streltsov, J. Woodroffe, W. Gekelman, and P. Priby, Modeling the propagation of whistler-mode waves in the presence of field-aligned density irregularities, Phys Plasmas 19, 052104 (2012)l [http://dx.doi.org/10.1063/1.4719710].

Zhou, Shu, W.W. Heidbrink, H. Boehmer, R. McWilliams, T.A. Carter, S. Vincena, S.K.P. Tripathi, and B. Van Compernolle, Thermal plasma and fast ion transport in electrostatic turbulence in the large plasma device, Phys. Plasmas, 19, 055904 (2012); [http://dx.doi.org/10.1063/1.3695341].

Yuhou Wang, Walter Gekelman, Patrick Pribyl, and Konstantinos Papadopoulos, Scattering of Magnetic Mirror Trapped Fast Electrons by a Shear Alfvén Wave, Phys. Rev. Lett. 108, 105002 (2012); [DOI: 10.1103/PhysRevLett.108.105002].

Zhou, S., Heidbrink, W.W., Boehmer, H., McWilliams, R., Carter, T.A., Vincena, S., Friedman, B., and Schaffner, D., Sheared-flow induced confinement transition in a linear magnetized plasma, Phys. Plasmas, v19, 012116 (2012); [doi:10.1063/1.3677361].

2011

B. Van Compernolle, W. Gekelman, P. Pribyl, and C. M. Cooper, Wave and transport studies utilizing dense plasma filaments generated with a lanthanum hexaboride cathode, Phys. Plasmas, v18, 123501 (2011); [doi:10.1063/1.3671909].

Maggs J. E.; Morales G. J., Generality of Deterministic Chaos, Exponential Spectra, and Lorentzian Pulses in Magnetically Confined Plasmas, Phys. Rev. Lett. 107, 185003 (2011); DOI: 10.1103/PhysRevLett.107.185003.

D. J. Drake, C. A. Kletzing, F. Skiff, G. G. Howes, and S. Vincena, Design and use of an Elässer probe for analysis of Alfvén wave fields according to wave direction, Rev. Sci. Instrum., v82 103505 (2011); [doi:10.1063/1.3649950].

S. K. P. Tripathi, P. Pribyl, and W. Gekelman, Development of a radio-frequency ion beam source for fast-ion studies on the large plasma device, Rev. Sci. Instrum. 82, 093501 (2011); [doi:10.1063/1.3631628].

W. Gekelman, P. Pribyl, J. Wise, A. Lee, R. Hwang, C. Eghtebas, J. Shin, and B. Baker, Using plasma experiments to illustrate a complex index of refraction, Am. J. Phys. 79 (9), September 2011; DOI: 10.1119/1.3591341.

S. K. P. Tripathi and W. Gekelman, Laboratory simulation of solar magnetic flux rope eruptions, Proceedings of the International Astronomical Union 01 August 2010 6: 483-486, doi:10.1017/S1743921311015845.

G. Hornung, B. Nold, J. E. Maggs, G. J. Morales, M. Ramisch, and U. Stroth, Observation of exponential spectra and Lorentzian pulses in the TJ-K stellarator, Phys. Plasmas 18, 082303 (2011); doi:10.1063/1.3622679.

Shu Zhou, W. W. Heidbrink, H. Boehmer, R. McWilliams, T. A. Carter, S. Vincena, and S. K. P. Tripathi, Dependence of fast-ion transport on the nature of the turbulence in the Large Plasma Device, Phys. Plasmas 18, 082104 (2011); doi:10.1063/1.3622203.

Chiang, F.C., Pribyl, P., Gekelman, W., Lefebvre, B., Chen, Li-Jen, and Judy, J. W. Microfabricated Flexible Electrodes for Multiaxis Sensing in the Large Plasma Device at UCLA, IEEE Trans. Plasma Sci. v39, n6, June (2011); doi:10.1109/TPS.2011.2129601.

Gekelman, W., Vincena, S., Van Compernolle, B., Morales, G.J., Maggs, J.E., Pribyl, P., and Carter, T.A., The many faces of shear Alfvén waves, Phys. Plasmas, v18, 055501, (2011); doi:10.1063/1.3592210.

Vincena, S. T., W. A. Farmer, J. E. Maggs, and G. J. Morales (2011), Laboratory realization of an ion-ion hybrid Alfvén wave resonator, Geophys. Res. Lett., 38, L11101, doi:10.1029/2011GL047399.

B. Jacobs, W. Gekelman, P. Pribyl, and M. Barnes, Temporally resolved ion velocity distribution measurements in a radio-frequency plasma sheath, Phys. Plasmas, v18, 053503 (2011); [doi:10.1063/1.3577575].

A. Collette and W. Gekelman, Structure of an exploding laser-produced plasma, Phys. Plasmas, v18, 055705 (2011); [doi:10.1063/1.3567525].

Auerbach, D.W., T.A. Carter, S. Vincena, and P. Popovich, Resonant drive and nonlinear suppression of gradient-driven instabilities via interaction with shear Alfvén waves, Phys. Plasmas, v18, 055708 (2011) [doi:10.1063/1.3574506].

Umansky M. V.; Popovich P.; Carter T. A.; Friedman B.; Nevins W. M., Numerical simulation and analysis of plasma turbulence the Large Plasma Device, Phys. Plasmas v18, 055709 (2011); [doi:10.1063/1.3567033].

A. V. Karavaev, N. A. Gumerov, K. Papadopoulos, Xi Shao, A. S. Sharma, W. Gekelman, Y. Wang, B. Van Compernolle, P. Pribyl, and S. Vincena, Generation of shear Alfvén waves by a rotating magnetic field source: Three-dimensional simulations, Phys. Plasmas, Phys. Plasmas, v18, 032113, 2011; DOI:10.1063/1.3562118.

B. Lefebvre, L.-J. Chen, W. Gekelman, P. Kintner, J. Pickett, P. Pribyl, and S. Vincena, Debye-scale solitary structures measured in a beam-plasma laboratory experiment, Nonlin. Process. Geophys., 18, 41-47, 2011; doi:10.5194/npg-18-41-2011.

2010

P. Popovich., M.V. Umansky, T.A. Carter, and B. Friedman, Modeling plasma turbulence and transport in the Large Plasma Device, Phys. Plasmas, v17, 122312, 2010; doi:10.1063/1.3527987.

Shu Zhou, W. W. Heidbrink, H. Boehmer, R. McWilliams, T. Carter, S. Vincena, S. K. P. Tripathi, P. Popovich, B. Friedman, and F. Jenko, Turbulent transport of fast ions in the Large Plasma Device, Phys. Plasmas, v17 092103, (2010); [doi:10.1063/1.3486532].

W. Gekelman, E. Lawrence, A. Collette, S. Vincena, B. VanCompernolle, P. Pribyl, M. Berger, and J. Campbell, Magnetic field line reconnection in the current systems of flux ropes and Alfvén, Phys. Scr. T142 014032 (2010); doi:10.1088/0031-8949/2010/T142/014032.

P. Pribyl, W. Gekelman, and A. Gigliotti, Direct measurement of the radiation resistance of a dipole antenna in the whistler/lower hybrid wave regime, Radio Sci., v45, RS4013, (2010); DOI: 10.1029/2009RS004266.

D. B. Schaeffer, N. L. Kugland, C. G. Constantin, E. T. Everson, B. Van Compernolle, C. A. Ebbers, S. H. Glenzer, and C. Niemann, A scalable multipass laser cavity based on injection by frequency conversion for noncollective Thomson scattering, Rev. Sci. Instrum. 81, 10D518 (2010).

Collette, A. and Gekelman, W., Structure of an exploding laser-produced plasma, Phys. Rev. Lett., 105, 195003 (2010); DOI:10.1103/PhysRevLett.105.195003.

Auerbach, D.W., Carter, T.A., Vincena, S., and Popovich, P., Control of gradient-driven instabilities using shear Alfvén beat waves, Phys. Rev. Lett., 105, 13505 (2010); DOI: 10.1103/PhysRevLett.105.135005.

B. Lefebvre, L. Chen, W. Gekelman, P. Kintner, J. Pickett, P. Pribyl, S. Vincena, F.Chiang, and J. Judy, Laboratory measurements of electrostatic solitary structures generated by beam injection, Phys. Rev. Lett., v105, 115001, (2010); DOI: 10.1103/PhysRevLett.105.115001.

C.M. Cooper, W. Gekelman, P. Pribyl, and Z. Lucky, A new large area lanthanum hexaboride plasma source, Rev. Sci. Instrum, 81, 083503 (2010) 105, 075005 (2010); doi:10.1063/1.3471917.

S.K.P. Tripathi and W. Gekelman, Laboratory Simulation of Arched Magnetic Flux Rope Eruptions in the Solar Atmosphere, Phys. Rev. Lett. 105, 075005 (2010); DOI: 10.1103/PhysRevLett.105.075005.

B. Jacobs, W. Gekelman, P. Pribyl, and M. Barnes, Phase-Resolved Measurements of Ion Velocity in a Radio-Frequency Sheath, Phys. Rev. Lett., v105, 075001, (2010); DOI: 10.1103/PhysRevLett.105.075001.

S.T. Vincena, G.J. Morales, and J.E. Maggs, Effect of two ion species on the propagation of shear Alfvén waves of small transverse scale, Phys. Plasmas, v17, 052106 (2010); DOI: 10.1063/1.3422549.

C. A. Kletzing, D. J. Thuecks, F. Skiff, S. R. Bounds, and S. Vincena, Measurements of Inertial Limit Alfvén Wave Dispersion for Finite Perpendicular Wave Number, Phys. Rev. Lett. 104, 095001 (2010); DOI: 10.1103/PhysRevLett.104.095001.

A.V. Karavaev, N.A. Gumerov, K. Papadopoulos, Xi Shao, A.S. Sharma, W. Gekelman, A. Gigliotti, P. Pribyl, and S. Vincena, Generation of whistler waves by a rotating magnetic field source, Phys. Plasmas, v17, 012102, 2010.

A. B. Zylstraa, C. Constantin, E. T. Everson, D. Schaeffer, N. L. Kugland, P. Pribyl, and C. Niemanna, Ion velocity distribution measurements in a magnetized laser plasma expansion, JINST 5 P06004 (2010); doi:10.1088/1748-0221/5/06/P06004.

2009

E.T. Everson, P. Pribyl, C.G. Constantin, A. Zylstra, D. Schaeffer, N.L. Kugland, and C. Niemann, Design, construction, and calibration of a three-axis, high-frequency magnetic probe (B-dot probe) as a diagnostic of exploding plasmas, Rev. Sci. Instrum., v80, 113505, 2009; [doi:10.1063/1.3246785].

Y. Zhang, W. W. Heidbrink, S. Zhou, H. Boehmer, R. McWilliamsT.A. Carter, S. Vincena, W. Gekelman, and M.K. Lilley, Doppler-shifted cyclotron resonance of fast ions with circularly polarized shear Alfvén waves, Phys. Plasmas, v16, 055706, 2009.

T.A. Carter and J.E. Maggs, Modifications of turbulence and turbulent transport associated with a bias-induced confinement transition in the Large Plasma Device, v16, 012304, 2009; doi:10.1063/1.3059410.

J.A. Stillman, F.C Chiang, P. Pribyl, W. Gekelman, M. Nakamoto, and J.W. Judy, MEMS Electric-Field Probes for Laboratory Plasmas, J. Micromech. Systems, v18, n5, 2009.

A. Gigliotti, W. Gekelman, P. Pribyl, S. Vincena, A. Karavaev, X. Shao, A. Surjalal Sharma, and D. Papadopoulos, Generation of polarized shear Alfvén waves by a rotating magnetic field source, Phys. Plasmas, v16, 092106, 2009; DOI:10.1063/1.3224030.

W. Horton, C. Correa, G.D. Chagelishvili, V.S. Avsarkisov, J.G. Lominadze, J.C. Perez, J.H. Kim, and T.A. Carter, On generation of Alfvénic-like fluctuations by drift-wave zonal flow system in large plasma device experiments, Phys. Plasmas, v16, 092102, 2009; http://dx.doi.org/10.1063/1.3211197.

E. Lawrence and W. Gekelman, Identification of a Quasiseparatrix Layer in a Reconnecting Laboratory Magnetoplasma, Phys. Rev. Lett., v103, 105002 (2009); DOI: 10.1103/PhysRevLett.103.105002.

W. Gekelman, M. Barnes, S. Vincena, and P. Pribyl, Correlation analysis of waves above a capacitive plasma applicator, Phys. Rev. Lett, v103, 045003, 2009; http://dx.doi.org/10.1103/PhysRevLett.103.045003.

M. Shi, D.C. Pace, G.J. Morales, J.E. Maggs, and T.A. Carter, Structures generated in a temperature filament due to drift-wave convection, Phys. Plasmas, v16, 062306, 2009; DOI:10.1063/1.3147863.

D.J. Thuecks, C.A. Kletzing, F. Skiff, S.R. Bounds, and S. Vincena, Tests of collision operators using laboratory measurements of shear Alfvén wave dispersion and damping, Phys. Plasmas, 33461, 2009.

C. Constantin, W. Gekelman, P. Pribyl, E. Everson, D. Schaeffer, N. Kugland, R. Presura, S. Neff, C. Plechaty, S. Vincena, A. Collette, S. Tripathi, M. Villagran Muniz, C. Niemann, Collisionless interaction of an energetic laser produced plasma with a large magnetoplasma, Astrophys. Space. Sci., 2009; DOI 10.1007/s10509-009-0012-z.

2008

D. C. Pace, M. Shi, J. E. Maggs, G. J. Morales, and T. A. Carter, Exponential frequency spectrum and Lorentzian pulses in magnetized plasmas, Phys. Plasmas, v15, 122304, 2008.

S.M. Finnegan, M.E. Koepke, and D.J. Knudsen, The dispersive Alfvén wave in the time-stationary limit with a focus on the collisional and warm-plasma effects, Phys. Plasmas, v15, 052108, 2008.

Y. Zhang, W. W. Heidbrink, H. Boehmer, R. McWilliams, S. Vincena, T. A. Carter, W. Gekelman, D. Leneman, and P. Pribyl, Observation of fast-ion Doppler-shifted cyclotron resonance with shear Alfvén waves, Phys. Plasmas, v15, 102112, 2008.

W. Gekelman, S. Vincena, and A. Collette, Visualizing three-dimensional reconnection in a colliding laser plasma experiment, IEEE Trans. Plasma Sci., v36, n4, August, (2008). DOI: 10.1109/TPS.2008.922928.

A. Collette and W. Gekelman, Two-dimensional micron-step probe drive for laboratory plasma measurement, Rev. Sci. Instr., v79, 083505, 2008.

B. Van Compernolle, G. Morales, and W. Gekelman, Cherenkov radiation of shear Alfvén waves, Phys. Plasmas, v15 082101, 2008.

D. C. Pace, M. Shi, J. E. Maggs, G. J. Morales, and T. A. Carter, Exponential Frequency Spectrum in Magnetized Plasmas, Phys. Rev. Lett, v101, 085001, 2008.

S. Vincena, W. Gekelman, M.A. Van Zeeland, J. Maggs, A. Collette, Quasielectrostatic whistler wave radiation from the hot electron emission of a laser-produced plasma, Phys. Plasmas, v15 072114, 2008. DOI: 10.1063/1.2956994.

D. C. Pace, M. Shi, J. E. Maggs, G. J. Morales, and T. A. Carter, Spontaneous Thermal Waves in a Magnetized Plasma, Phys. Rev. Lett. 101, 035003 (2008).

M.E. Koepke, S.M. Finnegan, S. Vincena, D.J. .Knudsen, and C. Chaston, Integrated campaign to study the stationary inertial Alfvén wave in the laboratory and space regimes, Plasma Phys. Conrol. Fusion, v50, 074004 (2008); http://dx.doi.org/10.1088/0741-3335/50/7/074004.

Y. Zhang, W. W. Heidbrink, H Boehmer, R. McWilliams, G. Chen, B.N. Breizman, S. Vincena, T. Carter, D. Leneman, W. Gekelman, P. Pribyl, and B. Brugman, Spectral gap of shear Alfvén waves in a periodic array of magnetic mirrors, Phys. Plasmas, v15, 012103, (2008).

2007

D. Leneman, Reflection of Alfvén waves from boundaries with different conductivities, Phys. Plasmas, v14, 122109, (2007).

B. Jacobs, W. Gekelman, P. Pribyl, M. Barnes, and M. Kilgore, Laser-induced fluorescence measurements in an inductively coupled plasma reactor, App. Phys. Lett., 91 161505, (2007).

Y. Zhang, H. Boehmer, W. W. Heidbrink, R. McWilliams, D. Leneman, and S. Vincena, Lithium ion sources for investigations of fast ion transport in magnetized plasmas, Rev. Sci. Instrum, 78, 013302 (2007).

W. Gekelman, A. Collette, and S. Vincena , Three-dimensional current systems generated by plasmas colliding in a background magnetoplasma, Phys. Plasmas, 14, 062109 (2007).

J.E. Maggs, T.A. Carter, and R.J. Taylor, Transition from Bohm to classical diffusion due to edge rotation of a cylindrical plasma, Phys. Plasmas, 14, 052507 (2007).

F.S. Tsung, G.J. Morales, and J. Tonge, Alfvén phenomena triggered by resonant absorption of an O-mode pulse, Phys. Plasmas, 14, 042101, 2007.

W. Gekelman, J. Wise, P. Pribyl, R. Baker, W. Layton, J. Skrzypek, P. Niknejadi, R. Ransom, D. Lee, R. Zarinshesnas, T. Kim, R. Buck, E. Warfel, T. Tasoff, J. Carmona, S. Skolnik, L. Kim, D. Furlong, and N. Gibson, Ion acoustic wave experiments in a high school plasma physics laboratory, Am. J. Phys. 75 (2) 2007.

Y. Zhang, H. Boehmer, W.W. Heidbrink, R. McWilliams, D. Leneman, and S. Vincena, Lithium ion sources for investigations of fast ion transport in magnetized plasma, Rev. Sci. Instrum., 78, 013302, 2007.

2006

V.A. Manasson, A. Avakian, A. Brailovsky, W. Gekelman, A. Gigliotti, L. Giubbolinni, I. Gordion, M. Felman, V. Khodos, V. Litvinov, P. Pribyl, L. Sadovnik, Time/Space-Probing Interferometer for Plasma Diagnostics, Proceedings of the 2006 Antenna Applications Symposium, Allerton Park, Monticello, Illinois, Sept 20-22, 2006.

P. Pribyl, W. Gekelman, M. Nakamoto, E. Lawrence, F. Chiang, J. Stillman, J. Judy, N. Katz, P. Kintner, and P. Niknejadi, Debye size microprobes for electric field measurements in laboratory plasmas, Rev. Sci. Instrum. 77, 073504 (2006) (8 pages).

S. Vincena and W. Gekelman, Drift-Alfvén wave mediated particle transport in an elongated density depression, Physics of Plasmas, vol.13, no.6, June 2006, pp. 64503-1-4.

G. J. Morales and J. E. Maggs, Differential equation model of an Alfvén wave maser, Phys. Plasmas 13, 052109 (2006) (13 pages).

T.A. Carter, B. Brugman, P. Pribyl, and W. Lybarger, Laboratory Observation of a Nonlinear Interaction between Shear Alfvén Waves, Phys. Rev. Lett., 96, 155001, 2006.

D. Leneman, W. Gekelman, and J. Maggs, The plasma source of the Large Plasma Device at University of California, Los Angeles, Rev. Sci. Instrum., 77, 015108, 2006.

T.A. Carter, Intermittent turbulence and turbulent structures in a linear magnetized plasma, Phys. Plasmas, 13, 010701-1 , 2006.

B. Van Compernolle, W. Gekelman and P. Pribyl, Generation of suprathermal electrons and Alfvén waves by a high power pulse at the electron plasma frequency, Physics of Plasmas, vol 13, 092112, 2006.

2005

B. Van Compernolle, W. Gekelman, P. Pribyl, T. Carter, Generation of Alfvén waves by a high power pulse at the electron plasma frequency, Geo. Phys. Res. Letts., 32, L08101, 2005.

N. Palmer, W. Gekelman, and S. Vincena, Measurement of Ion Motion in a Shear Alfvén Wave, Phys. Plasmas 12, 072102 (2005).

L. Zhao, W. W. Heidbrink, H. Boehmer, R. McWilliams, D. Leneman, and S. Vincena, Measurements of classical transport of fast ions, Phys. Plasmas 12, 052108 (2005).

S. Vincena and W. Gekelman, Visualizing shear Alfvén wave currents near the ion-cyclotron frequency, IEEE Trans. Plasma Sci., pp 552, v33, n2, (2005).

W. Gekelman and S. Vincena, Imaging complex three-dimensional Alfvén wave currents, Phys. Plasmas, IEEE Trans. Plasma Sci., pp 546, v33, n2, (2005).

W. Horton, J. Perez, T. Carter, and R. Bengtson, Vorticity probes and the characterization of vortices in the Kelvin-Helmholtz instability in the large plasma device experiment, Phys. Plasmas, v12, n2, (2005).

J. Maggs, G. Morales, and T. Carter, An Alfvén wave maser in the laboratory, Phys. Plasmas, v12, n1, (2005).

Tsung FS, Tonge JW, Morales GJ., Particle simulation of Alfvén waves excited at a boundary, Physics of Plasmas, vol.12, no.1, Jan. 2005, pp. 12508-1-11.

2004

S. Vincena, W. Gekelman, and J. Maggs, Shear Alfvén wave perpendicular propagation from the kinetic to the inertial regime, Phys. Rev. Lett, v93 n10, 2004. Experimental verification of the zero perpendicular group velocity turning point for Alfvén waves with a parallel phase speed near the electron thermal speed.

M. VanZeeland and W. Gekelman, Laser-plasma diamagnetism in the presence of an ambient magnetized plasma, Phys. Plasmas, v11, n1, 2004.

H. Boehmer, D. Edrich, W. Heidbrink, R. McWilliams, L. Zhao, and D. Leneman, Operation of a 0.2-1.1 keV ion source within a magnetized laboratory plasma, Rev. Sci. Instr., v75, n4, (2004).

P. Pribyl and W. Gekelman, 24kA solid state switch for plasma discharge experiments, Rev. Sci. Instr., v75, n3, (2004).

2003

R. Boswell, Cosmic Waves in the Lab, Nature, 25, 352, (2003) [review of the Alfvén wave maser].

Tsung FS, Morales GJ, Leboeuf JN., Dynamics of a supersonic plume moving along a magnetized plasma, Physical Review Letters, vol.90, no.5, 7 Feb. 2003, pp. 0550041-4.

Morales GJ, Tsung FS, Leboeuf JN. Dynamics of a supersonic plume moving along a magnetized plasma. AIP Conference Proceedings, no.669, 2003, pp. 749-5.

W. Gekelman, M. Van Zeeland, S. Vincena, P. Pribyl, Laboratory Experiments of Alfvén waves caused by rapidly expanding plasmas and their relationship to space phenomena, J. Geophys. Res. 108, SMP-8-1 (2003).

J. Maggs and G. Morales, Magnetic fluctuations of a large nonuniform plasma column, Phys. Plasmas, v10, n6, (2003).

J. Maggs and G. Morales, Laboratory realization of an Alfvén wave maser, Phys. Rev. Lett., v91, n3, (2003).

C. Kletzing, S. Bounds, J. Martin-Hiner, W. Gekelman, C. Mitchell, Measurements of the shear Alfvén wave dispersion for finite perpendiular wave number, Phys. Rev. Lett, 90 (2003). A novel antenna is used to launch Alfvén waves with small perpendicular (to B ) wavelengths.

M. Van Zeeland, W. Gekelman, S. Vincena, J. Maggs, Currents and shear Alfvén radiation generated by an expanding laser-produced plasma: perpendicular incidence, Phys. Plasmas, 10, 1243, (2003).

2002 (Facility fully operational)

W. Gekelman, LAPTAG - A Physics Outreach Program at UCLA, APS news Oct (2002).

C. Mitchell, J. Maggs, W. Gekelman, Field line resonances in a cylindrical Plasma, Phys. Plasmas, 9, 2909, (2002). Experiment on Alfvén field line resonances and comparison with theory.

2001

S. Rosenberg, W. Gekelman, A three dimensional experimental study of lower hybrid wave interactions with field aligned density depletions, Jour. Geophys. Res., 106, 28,867 (2001). Experimental study of an ionospheric phenomena.

D. Leneman, W. Gekelman, A novel angular motion feedthrough, Rev. Sci. Instrum, 72, 3473, (2001).

S. Vincena, W. Gekelman, and J. Maggs, Shear Alfvén waves in a magnetic beach and the roles of electron and ion damping, Phys. Plasmas, v8, n9, Sept., 2001.

M. VanZeeland, W.Gekelman, S. Vincena, and G. Dimonte, Production of Alfvén Waves by a Rapidly Expanding Dense Plasma, Phys. Rev. Lett., 2001.

T. Drozdenko, G.J. Morales, Effect of Cross Field Flow on inertial Alfvén waves of small transverse scale length, Phys. Plasmas, 8, 3177, (2001).

T. Drozdenko, G.J. Morales, Nonlinear effects resulting from the interaction of large-scale Alfvén wave with a density filament, Phys. Plasmas, 8, 3265 (2001).

Mitchell, C.; Vincena, S.; Maggs, J.; Gekelman, W., Laboratory observation of Alfvén resonance. Geophysical Research Letters, vol.28, (no.5), American Geophys. Union, 1 March 2001. p.923-6.

2000

S. Rosenberg and W.Gekelman, A three-dimensional experimental study of lower hybrid wave interactions with field-aligned density depletion, Geophys. Res. Lett, 27, 859-862 (2000).

Experimental Measurements of Large Amplitude Shear Waves and corresponding density perturbations, includes LIF measurements. W.Gekelman, S. Vincena, N. Palmer, P. Pribyl, D. Leneman, C. Mitchell, J. Maggs, Experimental Measurements of the Propagation of large-amplitude shear Alfvén waves, Plasma Phys. Control. Fusion, 42, B15-B26 (2000).

T. Drozdenko, G.J. Morales, Interaction of a Shear Alfvén wave with a filamentary density perturbation in a low beta plasma, Phys. Plasmas, 7, 823, (2000).

Burke AT, Maggs JE, Morales GJ, Experimental study of fluctuations excited by a narrow temperature filament in a magnetized plasma, [Journal Paper] Physics of Plasmas, vol.7, no.5, May 2000, pp. 1397-407.

Burke AT, Maggs JE, Morales GJ, Experimental study of classical heat transport in a magnetized plasma, [Journal Paper] Physics of Plasmas, vol.7, no.2, Feb. 2000, pp. 544-53.

Study of Fluctuations that spontaneously develop in a skin depth size temperature filament. A.T. Burke, J. Maggs, G. Morales, "Spontaneous Fluctuations of a Temperature Filament in a Magnetized Plasma, Phys. Rev. Lett., 84, 1451 (2000).

Penano JR, Morales GJ, Maggs JE, Drift-Alfvén fluctuations associated with a narrow pressure striation, [Journal Paper] Physics of Plasmas, vol.7, no.1, Jan. 2000, pp. 144-57.

1994 - 1999

Observations of kinetic and inertial shear Alfvén waves: D. Leneman, W. Gekelman, and J. Maggs, Laboratory Observations of Shear Alfvén Waves Launched from a Small Source, Phys. Rev. Letters, 82, 2673-2676 (1999).

A review paper on Alfvén wave experiments over the years: W. Gekelman, Review of laboratory experiments on Alfvén waves and their relationship to space observations, Jour. Geophys. Res., 104,14,14,417-14,435 (1999).

S. Vincena, W. Gekelman, 3D Observations of Electromagnetic Ion Cyclotron Wave Propagation in a Laboratory Plasma Column, IEEE Transactions on Plasma Science, 27 (1), 1999.

An atomic model for a helium d.c. discharge using the Los Alamos suite of atomic physics codes was used to calculate the density and temperature in the LAPD device. The results were compared with experimental data in: J. Abdalllah Jr., N. Palmer, W. Gekelman, J. Maggs, and R.E.H. Clark, Time-dependent kinetics model for a helium discharge plasma, J. Phys. B: At. Mol. Opt. Phys. 32 1001-1008 (1999).

Morales GJ, Maggs JE, Burke AT, Penano JR, Alfvénic turbulence associated with density and temperature filaments, [Conference Paper; Journal Paper] IOP Publishing. Plasma Physics and Controlled Fusion, vol.41, suppl.3A, March 1999, pp. A519-29. UK.

Using military flight simulation techniques to view large plasma physics data sets: C. Mitchell, W. Gekelman, Real-time physics data-visualization system using Performer, Computers in Physics 12, 371 Jul/Aug 1998.

Measurement of the electric field of whistler and lower hybrid waves at a density striation: S. Rosenberg, W.Gekelman, Electric Field Measurements of directly converted lower hybrid waves at a density striation, Geophys. Res. Letts., 25, 865 (1998).

A.T. Burke, J.E. Maggs and G.J. Morales, Observation of Simultaneous Axial and Transverse Classical Heat Transport in a Magnetized Plasma, Phys. Rev. Letters, 81, 3659 (1998).

A thorough review of the properties of Alfvén wave cones in the context of space plasmas illustrating their three dimensional propagation and interference effects has been published and may be downloaded. W. Gekelman, S. Vincena, D. Leneman, J. Maggs, Laboratory Experiments on shear Alfvén waves and their relationship to space plasmas, Jour. of Geophys. Res., 102, 7225-7236 (1997).

Morales GJ, Maggs JE, Structure of kinetic Alfvén waves with small transverse scale length, Physics of Plasmas, vol.4, no.11, Nov. 1997, pp. 4118-25.

Maggs JE, Morales GJ, Gekelman W., Laboratory studies of field-aligned density striations and their relationship to auroral processes, Physics of Plasmas, vol.4, no.5, pt.2, May 1997, pp. 1881-8.

Penano JR, Morales GJ, Maggs JE, Properties of drift waves in a filamentary density depletion, Physics of Plasmas, vol.4, no.3, March 1997, pp. 555-65.

The three dimensional current structure of Alfvén wave cones is presented in: W. Gekelman, S. Vincena, D. Leneman, Experimental Observations of Shear Alfvén waves generated by narrow current channels, Plasma Phys. and Control. Fusion, 39, A101-A112 (1997).

Maggs JE, Morales GJ, Fluctuations associated with a filamentary density depletion, Physics of Plasmas, vol.4, no.2, Feb. 1997, pp. 290-9.

Maggs JE, Morales GJ, Magnetic fluctuations associated with field-aligned striations, [Journal Paper] Geophysical Research Letters, vol.23, no.6, 15 March 1996, pp. 633-6. Publisher: American Geophys. Union, USA.

Laboratory study of the interaction of a whistler wave with a density striation showing its direct conversion to lower-hybrid waves: J.F. Bamber, J.E. Maggs, and W. Gekelman, Whistler Wave Interaction with a Density Striation: A Laboratory Investigation of an Auroral Process, Jour. of Geophys. Res., 100, 23795-23810 (1995).

Morales GJ, Loritsch RS, Maggs JE. Properties of Alfvén waves with transverse scale on the order of the skin-depth. [Conference Paper] 1994 International Conference on Plasma Physics. Joint Conference of the 10th Kiev International Conference on Plasma Theory, 10th International Congress on Waves and Instabilities in Plasmas, Combined with 6th Latin American Workshop on Plasma Physics. Proceedings. INPE. Part vol.3, 1994, pp. 189-92 vol.3. Sao Jose des Campos, Brazil.

Morales GJ, Loritsch RS, Maggs JE., Structure of Alfvén waves at the skin-depth scale, Physics of Plasmas, vol.1, no.12, Dec. 1994, pp. 3765-74.

W. Gekelman, D. Leneman, J. Maggs, S. Vincena, Experimental Observation of Alfvén wave cones, Phys. Plasmas, 1, 3775 (1994). Alfvén waves generated by narrow, fluctuating current channels.

Srivastava S, Morales GJ, Maggs JE., Nonlinear Landau damping of resonantly excited fields in nonuniform plasmas, Physics of Plasmas, vol.1, no.3, March 1994, pp. 567-78.

Earlier Work

Archive of experiments on magnetic reconnection by W. Gekelman et al. (from 1979-1988).

Presentations

APS-DPP distinguished lecture by Walter Gekelman. Given in 1999-2000.