Lab Publications

 

A.    Plasma Processing

Laser-Induced Fluorescence Ion Diagnostics in Light of Plasma Processing, R. McWilliams, E.A. Hudson, and J.P. Booth, Thin Solid Films, accepted for publication.

Diode Laser-Induced Fluorescence Measurements of Metastable Argon Ions in Magnetized Inductively Coupled Plasma, S. Jun, H.Y. Chang, and R. McWilliams, Physics of Plasmas, accepted for publication.

Laser-Induced Fluorescence Measurements for Plasma Processing, R. McWilliams, H. Boehmer, D. Edrich, W. Heidbrink, L. Zhao, and D. Zimmerman, Thin Solid Films 506-507, p.665 (2006).

Two-Dimensional Ion Velocity Distribution Functions in Inductively Coupled Argon Plasma, D. Zimmerman, R. McWilliams, and D. Edrich, Plasma Sources Science & Technology, 14, 581 (2005).

Operation of a 0.2-1.1 keV Ion Source Within a Magnetized Laboratory Plasma, H. Boehmer, D. Edrich, W.W. Heidbrink, D. Leneman, R. McWilliams, and L. Zhao, Review of Scientific Instruments 75, 1013 (2004).

Laser-Induced Fluorescence Diagnosis of Plasma Processing Sources, R. McWilliams and D. Edrich, Thin Solid Films 435, 1 (2003).

B.     Ion Transport

Determination of Plasma Flow Velocity by Mach Probe and Triple Probe with Correction by Laser-Induced Fluorescence in Unmagnetized Plasmas, Y.S. Choi, H.J. Woo, M.Y. Lee, D. Zimmerman, and R. McWilliams, Japanese Journal of Applied Physics, accepted.

Sheared Zonal Flow ExB Drifts Predicted from Emissive Probes and Measured by Laser-Induced Fluorescence, R. McWilliams and D. Edrich, Contributions to Plasma Physics, accepted.

Effect of Supersonic Ion Beams on the Triple Probe Measurement, H.J. Woo, K.S. Chung, Y.S. Choi, M.J. Lee, D. Zimmerman, and R. McWilliams, Contributions to Plasma Physics, accepted.

Ion Flow and Sheath Physics Studies in Multiple Ion Species Plasmas Using Diode Laser Based Laser-Induced Fluorescence, G.D. Severn, Xu Wang, Eunsuk Ko, N. Hershkowitz, M.M. Turner, and R. McWilliams, Thin Solid Films 506-507, p.674 (2006).

Two-Dimensional Ion Velocity Distribution Functions in Inductively Coupled Argon Plasma, D. Zimmerman, R. McWilliams, and D. Edrich, Plasma Sources Science & Technology, 14, 581 (2005).

Measurements of Classical Transport of Fast Ions, L. Zhao, W.W. Heidbrink, H. Boehmer, R. McWilliams, D. Leneman, and S. Vincena, Physics of Plasmas 12, 052108 (2005).

Operation of a 0.2-1.1 keV Ion Source Within a Magnetized Laboratory Plasma, H. Boehmer, D. Edrich, W.W. Heidbrink, D. Leneman, R. McWilliams, and L. Zhao, Review of Scientific Instruments 75, 1013 (2004).

Argon Ion Laser-Induced Fluorescence with Diode Lasers; G.D. Severn, D.A. Edrich, and R. McWilliams; Review of Scientific Instruments, v. 69, p. 10-15, (1998).

Ion Acceleration and Anomalous Transport in the Near Wake of a Plasma Limiter, D.P. Sheehan, J. Bowles, and R. McWilliams, Phys. Plasmas 4, 3177 (1997).

Single Beam Laser Induced Fluorescence Technique for Plasma Transport Measurements (with D. Edrich and N. Wolf), Rev. Sci. Instrum. 67(8), 2812 (1996).

Direct Measurement of Velocity Space Transport in a Plasma; J. Bowles, R. McWilliams, and N. Rynn; Physics of Plasmas v. 1, p. 3814-3825 (1994).

Velocity Space Diffusion in Q-Machine Plasmas (with J. Bowles and N. Rynn), IEEE Trans. on Plasma Science 20(6), 651 (1992).

Direct Measurement of Velocity-Space Transport in a Fully Ionized Plasma (with J. Bowles and N. Rynn), Phys. Rev. Lett. 68(8), 1144 (1992).

A Confinement Scaling Law, Comments on Plasma Phys. and Cont. Fusion 14(1), 27 (1991).

The Transport of Ions in a Turbulent Plasma; R. McWilliams, M. K. Okubo, and N. S. Wolf; Physics of Fluids B v. 2, p. 523-529, (1990).

Laser-Aided Measurement of Plasma Transport (with M. Okubo), Invited Talk, 3rd International Symposium on Laser-Aided Plasma Diagnostics, Los Angeles, 28-30 October 1987.

The Transport of Test Ions in a Quiet Plasma; R. McWilliams and M. Okubo, Physics of Fluids 30, p. 2849-2854, (1987).

Cross-Field Ion Transport and Heating Due to Parametric Decay of Lower Hybrid Waves (with D. N. Hill, N. S. Wolf, and N. Rynn), Phys. Rev. Lett. 50, 836 (1983).

B. Laser Development

 Laser-Induced Fluorescence Ion Diagnostics in Light of Plasma Processing, R. McWilliams, E.A. Hudson, and J.P. Booth, Thin Solid Films, accepted for publication.

Diode Laser-Induced Fluorescence Measurements of Metastable Argon Ions in Magnetized Inductively Coupled Plasma, S. Jun, H.Y. Chang, and R. McWilliams, Physics of Plasmas, accepted for publication.

A Newly Calibrated Laser-Induced Fluorescence (LIF) System for Ar Ions with a Single Tunable Diode Laser, H.J Woo, K.S. Chung, T. Lho, R. McWilliams, Journal of the Korean Physical Society 48, 260 (2006).

Laser-Induced Fluorescence Measurements for Plasma Processing, R. McWilliams, H. Boehmer, D. Edrich, W. Heidbrink, L. Zhao, and D. Zimmerman, Thin Solid Films 506-507, p.665 (2006).

Two-Dimensional Ion Velocity Distribution Functions in Inductively Coupled Argon Plasma, D. Zimmerman, R. McWilliams, and D. Edrich, Plasma Sources Science & Technology, 14, 581 (2005).

Argon Ion Laser-Induced Fluorescence with Diode Lasers, G.D. Severn, D.A. Edrich, and R. McWilliams, Rev. Sci. Instrum. 69, 10 (1998).

Single Beam Laser Induced Fluorescence Technique for Plasma Transport Measurements (with D. Edrich and N. Wolf), Rev. Sci. Instrum. 67(8), 2812 (1996).

Improved optical tomography device; M. Zintl and R. McWilliams; Review of Scientific Instruments, v. 65, p. 2574-2579, (1994).

Laser-Aided Measurements of Plasma Transport (with D. Sheehan), Invited Talk, Rev. Sci Instrum. 59, 1536 (1988).

Measurement of multidimensional ion velocity distributions by optical tomography; R. Koslover and R. McWilliams; Review of Scientific Instruments, v. 57, p. 2441-2448, (1986).

C. Ion Conics/Magnetospheric Simulations

Transverse Ion Acceleration and Ion Conic Formation in a Divergent-Field Laboratory Plasma, M. Zintl, R. McWilliams, and N. Wolf), Phys. Plasmas 2(12), 4432-4441 (1995).

Laboratory Simulations of Suprauroral Mechanisms Leading to Perpendicular Ion Heating & Conic Formation (with D. P. Sheehan and R. Koslover), J. Geophys. Res. 96(A8), 14107 (1991).

Laboratory Simulation of Magnetospheric Ion Transport, in Physics of Space Plasmas (1989), Invited Talk, Ed. T. Chang, G. B. Crew, and J. R. Jasperse, p. 301, Scientific Publishers, Inc. (1990).

Laboratory Observation of Ion Conics Using Velocity-Space Tomography of a Plasma,  R. McWilliams and R. Koslover, Physical Review Letters, v. 58, p. 37-40 (1987).

Laboratory Simulation of Ion Acceleration in the Presence of Lower Hybrid Waves (with H. Boehmer, R. Koslover, and N. Rynn), AGU Monograph on Ion Acceleration in the Magnetosphere and Ionosphere, 1986, Tom Chang, Editor, p. 245.

D. Wave Propagation and Current Drive


Fast and Slow Waves Launched from a Fast-Wave Waveguide Array (with D. Edrich,
N. S. Wolf and M. Brusati), Nucl. Fusion 32(4), 687 (1992).


Fast-Wave Current Drive Above the Slow-Wave Density Limit (with D. P. Sheehan, N. S. Wolf and D. Edrich), Phys. Rev. Lett. 64(11), 1258 (1990).

Radio Frequency Power in Plasmas, Editor Roger McWilliams, American Institute of Physics, 1989.

Fast Wave Dispersion, Damping, and Electron Current Drive in the Irvine Torus (with R. C. Platt), Applications of Radio Frequency Power to Plasmas, Kissimmee, Florida, Ed. S. Bernabei and R. W. Motley, American Institute of Physics, (1987).

Excitation of Fast Waves Near the Mean Gyrofrequency (with R. C. Platt), Phys. Rev. Lett. 57, 2276 (1986).

Electrostatic Ion Cyclotron Instability Near Threshold (with M.K. Okubo and N. S. Wolf), Phys. of Fluids 29, 3031 (1986).

Fast-Wave Current Drive in the Irvine Torus (with R. C. Platt), Phys. Rev. Lett. 56, 835 (1986).

Conference Review of Fourth International Symposium on Heating in Toroidal Plasmas, Nuclear Technology/Fusion, January 1986.

Ion Heating Due to Modulated Parametric Decay (with M. Okubo, R. Platt, D. Sheehan and N. S. Wolf), Physics Letts. 108A, 252 (1985).

Coupling to Fast Waves near the Lower Hybrid Frequency (with Y. Mok), Invited Paper, Nuclear Technology/Fusion 7, 283 (1985).

The Production of Highly Unidirectional Lower Hybrid Waves (with M. Okubo, R. C. Platt, and D. P. Sheehan), Physics of Fluids 28, 11 (1985).

Current Ramp-Up and Plasma Formation in the PLT Tokamak by Lower Hybrid Waves (with T. K. Chu, et al), Fourth International Symposium on Heating of Toroidal Plasmas, 21 March 1984, Rome, Italy.

Formation of a 100-kA Tokamak Discharge in the Princeton Large Torus by Lower Hybrid Waves; F. Jobes, J. Stevens, R. Bell, S. Bernabei, A. Cavallo, T.K. Chu, S. Cohen, B. Denne, P. Efthimion, E. Hinnov, W. Hooke, E. Mazzucato, R. McWilliams, R. Motley, S. Suckewer, G. Taylor, J. Timberlake, S. von Goeler, and R. Wilson; Physical Review Letters, v. 52, p. 1005-1008 (1984).

Coupling to the Fast Wave Via a Phased Waveguide Array (with L. Olson, J. Glanz, and R. W. Motley), Nucl. Fusion 24 (8), 1085 (1984).

Nonlocal Plasma Edge Density Reduction Due to Lower Hybrid Waves (with N. W. Wolf), Phys. Rev. A 25, 1247 (1982).

Currents Generated by Lower Hybrid Waves; R. McWilliams and R. W. Motley, Physics of Fluids v. 24, p. 2022-2034, (1981).

Lower-Hybrid Heating and Current Drive in Tokamaks and Related Experiments (with M. Porkolab, J. J. Schuss, T. Takase, S. Knowlton, S. C. Luckhardt, R. E. Slusher, C. M. Surko, N. Fisch, W. M. Hooke, C. Karney, R. Motley, M. Ono, F. Perkins, T. H. Stix, E. Valeo, R. Wilson and K. L. Wong), 8th Int. Conf. on Plasma Phys. and Controlled Nucl. Res., Brusssels, 1980.

Steady-state currents driven by collisionally damped lower-hybrid waves; R. McWilliams, R., E.J. Valeo, R.W. Motley, W.M. Hooke, and L. Olson; Physical Review Letters, v. 44, p. 245-248, (1980).

Penetration of Slow Waves into an Overdense Plasma (with R. W. Motley, S. Bernabei, W. M. Hooke, and L. Olson ), Plasma Physics 21, 567 (1979).

E. Other Publications

Adjustable Levels of Strong Turbulence in a Positive/Negative Ion Plasma (with D. P. Sheehan and N. Rynn), Phys. Fluids B 5(5), 1523 (1993).

Simple Overdense RF Plasma Source (with D. Edrich, R. C. Platt, and D. P. Sheehan), Rev. Sci. Instrum. 61, 3460 (1990).

Experimental Measurements of Phase Space (with D. Sheehan), in The Physics of Phase Space, Ed. Y. S. Kim and W. W. Zachary, Springer Verlag, (1987).

Experimental Measurements of Phase Space (with D. Sheehan), Phys. Rev. Lett. 56, 2485 (1986).

Home