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Selected Papers from the Proceedings of the First International Workshop on Crossed-Field Devices

2009

Refereed Journal Articles

• E. J. Cruz, B. W. Hoff, P. Pengvanich, Y. Y. Lau, R. M. Gilgenbach, and J. W. Luginslandd, "Experiments on peer-to-peer locking of magnetrons," To be published online soon.
• W. Tang, Y. Y. Lau, R. M. Gilgenbach, "Lumped circuit elements, statistical analysis, and radio frequency properties of electrical contact," J. Appl. Phys. 106, 084904 (2009).
• J. C. Zier, J. D. Douglass, I. C. Blesener, K. S. Blesener, D. A. Chalenski, R. M. Gilgenbach, J. B. Greenly, D. A. Hammer, P. F. Knapp, B. R. Kusse, Y. Y. Lau, R. D. McBride, W. Syed, and E. P. Yu, "Azimuthally correlated ablation between z-pinch wire cores", Phys. Plasmas 16, 102702 (2009).
• David M. French, Michael D. Uhler, Ronald M. Gilgenbach, and Y. Y. Lau, "Conductive versus capacitive coupling for cell electroporation with nanosecond pulses", J. Appl. Phys. 106, 074701 (2009).
• B. W. Hoff, P. J. Mardahl, R. M. Gilgenbach, M. D. Haworth, D. M. French, Y. Y. Lau, and M. Franzi, "Microwave window breakdown experiments and simulations on the UM/L-3 relativistic magnetron", Rev. Sci. Instrum. 80, 094702 (2009).
• Matthew R. Gomez, David M. French, Wilkin Tang, Peng Zhang, Y.Y. Lau, and R. M. Gilgenbach, "Experimental validation of a higher dimensional theory of electrical contact resistance", Appl. Phys. Lett. 95, 072103 (2009).
• Peng Zhang, Y. Y. Lau, and R. M. Gilgenbach, "Analysis of radio-frequency absorption and electric and magnetic enhancements due to surface roughness", J. Appl. Phys. 105, 114908 (2009).
• Y. Y. Lau and Wilkin Tang, "A higher dimensional theory of electrical contact resistance", J. Appl. Phys. 105, 124902 (2009).

2008

Refereed Journal Articles

• K. L. Jensen, Y. Y. Lau, D. W. Feldman, and P. G. O'Shea, "Electron emission contributions to dark current and its relation to microscopic field enhancement and heating in accelerator structures", Phys. Rev. ST Accel. Beams 11, 081001 (2008).
• P. Pengvanich, Y. Y. Lau, J. W. Luginsland, R. M. Gilgenbach, E. Cruz, and E. Schamiloglu, "Effects of frequency chirp on magnetron injection locking", Phys. Plasmas 15, 073110 (2008).
• P. Pengvanich, Y. Y. Lau, E. Cruz, R. M. Gilgenbach, B. Hoff, and J. W. Luginsland, "Analysis of peer-to-peer locking of magnetrons", Phys. Plasmas 15, 103104 (2008).
• N.M. Jordan, R.M. Gilgenbach, B.W. Hoff, and Y.Y. Lau, "Metal-oxide-junction, triple point cathodes in a relativistic magnetron", Rev. Sci. Inst. 79 1 (2008).
• B.W. Hoff, R.M. Gilgenbach, N.M. Jordan, Y.Y. Lau, E. Cruz, D. French, M.R. Gomez, J.C. Zier., TA. Spencera, D. Price,  "Magnetic Priming at the Cathode of a Relativistic Magnetron",  IEEE Trans. Plama Science, Special Issue on HPM (in press for June 2008).
• J. Zier, M.R. Gomez, D.M. French, R.M. Gilgenbach, Y.Y. Lau, W.W. Tang, M.E. Cuneo, T.A Mehlhorn, M.D. Johnson, and M.G. Mazarkis,  "Wire-tension Effects on Plasma Dynamics in a Two-Wire Z-Pinch", IEEE Trans. Plasma Science (in press for June 2008).
• P. Pengvanich, D. Chernin, Y.Y. Lau, John Luginsland and R.M. Gilgenbach, "Effects of Random Circuit Fabrication Errors on Small Signal Gain and Phase in Traveling Wave Tubes", IEEE Trans. Electron Devices, V55 (March 2008).
• M.R. Gomez, J.C. Zier, R.M Gilgenbach, D.M. French, W. Tang, and Y.Y. Lau, "Effect of Soft Metal Gasket Contacts on Contact Resistance, Energy Deposition, and Plasma Expansion Profile in a Wire Array Z Pinch", Rev. Sci. Inst. 79 093512 (2008).

2007

Refereed Journal Articles

• H. C. Kim, J. Verboncoeur, and Y. Y. Lau, “Modeling RF window breakdown: from vacuum multipactor to RF plasma (Invited Paper)”, IEEE Trans. Dielectrics Electr. Insul. 14, 766 (2007).
• Y. Hidaka, J.E. Foster, W.D. Getty, R.M. Gilgenbach, and Y.Y. Lau, "Performance and analysis of an electron cyclotron resonance plasma cathode", J. Vac. Sci. Technol. A, 25(4) Jul/Aug. 2007.
• W. Tang, T.S. Strickler, Y.Y. Lau, R.M. Gilgenbach, J. Zier, M.R. Gomez, E. Yu, C. Garasi, M.E. Cuneo, and T.A. Mehlhorn, “Linear and Nonlinear Evolution of Azimuthal Clumping Instabilities in a Z-Pinch Wire Array”, Physics of Plasmas, 14, p012706, 2007.
• R. Miller, Y. Y. Lau, and J. H. Booske, “Electric field distribution on knife-edge field emitters,” submitted to Appl. Phys. Lett. 91, 074105 (2007).
• N.M. Jordan, Y.Y. Lau, D.M. French, R.M. Gilgenbach, and P. Pengvanich, “Electric field and electron orbits near a triple point,” J. Appl. Phys. 102, 033301, 2007.
• Y. Y. Lau, J. W. Luginsland, K. L. Cartwright, and M. D. Haworth, “Role of ions in a crossed-field diode,” Phys. Rev. Lett. 98, 015002 (2007).

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2006

Refereed Journal Articles

• Y. Y. Lau, J. P. Verboncoeur, and H. C. Kim, "Scaling laws for dielectric window breakdown in vacuum and collisional regimes,”  Appl. Phys. Lett. 89, 261501 (2006).
• W.M. White, R.M. Gilgenbach, M.C. Jones, V.B Neculaes, Y.Y. Lau, P. Pengvanich, N.M. Jordan, B.W. Hoff, R. Edgar, T.A. Spencer, and D. Price, “Radio frequency priming of a long-pulse relativistic magnetron,” IEEE Trans. Plasma Sci. 34, p627-634, June, 2006.
• K. Jensen, Y. Y. Lau, and N. Jordan, “Emission nonuniformity due to profilimetry variation in thermionic cathodes,” Appl. Phys. Lett. 88, 164105 (2006).
• D.W. Jordan, M.D. Uhler, R.M. Gilgenbach, and Y.Y. Lau, “Enhancement of cancer chemotherapy in vitro by intense ultrawideband electric field pulses,” J. Appl. Phys. 99, p094701, May, 2006.
• A.L. Garner, Y.Y. Lau, M.D. Uhler, D.W. Jordan and R.M. Gilgenbach, "Incorporating Spatial Dependence into a Multicellular Tumor, Implications of a Simple Mathematical Model to Cell Population Dynamics, Cell Proliferation," 39, p15, 2006.
• L. K. Ang, W. S. Koh, Y. Y. Lau, and T. J. T. Kwan, “Space-charge-limited flow in the quantum regime (Invited Paper),” Phys. Plasmas 13,  056701 (2006).

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2005

Refereed Journal Articles

• W. Tang, H. Bosman, Y.Y. Lau, and R.M. Gilgenbach, “Ohmic heating of particulates in a lossless medium,” J. Appl. Phys. 97, 114915, 2005.
• R. Kowalczyk, Y.Y. Lau, T.M. Antonsen, J.W. Luginsland, D.P. Chernin, C.B. Wilsen, W. Tang, and R.M. Gilgenbach, “AC space charge effects on beam loading of a cavity,” IEEE Trans. Electron Devices 52, 2087, 2005.
• P. Penvanich, Neculaes, Lau, Gilgenbach, Jones, White and Kowaczyk, "Modeling and Experimental Studies of Magnetron Injection Locking", J. Appl. Phys., 98, 2005.
• A.L. Garner, Y.T. Lau, T.L. Jackson, M.D. Uhler, D.W. Jordan and R.M. Gilgenbach,"Incorporating Spatial Dependence into a Multicellular Tumor Spheroid Growth Model", accepted for publication in the Journal of Applied Physics.
• A.L. Garner, Y.T. Lau, M.D. Uhler, D. Jordan and R.M. Gilgenbach,"Implications of a Simple Mathematical Model to Cancer Cell Population Dynamics" Accepted for publication in Cell Proliferation.
• M.C. Jones, V.B. Necules, Y.Y. Lau, R.M. Gilgenbach, W.M. White, B.W. Hoff, and N.M. Jordan, "Magnetron Priming by Multiple Cathodes", Appl. Phys. Lett. 87 August 22, 2005.
• T.S. Strickler, Y.Y. Lau, and R.M. Gilgenbach, "Azimuthal Clumping Instabilities in a z-Pinch Wire Array", Phys. Plasmas 12, 052701, 2005.
• V.B. Neculaes, Pengvanich, Hidaka, Lau, Gilgenbach, White, Jones, Bosman, and Luginsland, "Rapid Kinematic Bunching and Parametric Instability in a Crossed-Field Gap with a Periodic Magnetic Field", IEEE Trans. Plasma Science 33 654, (2005).
• V.B Neculaes, M.C. Jones, R.M. Gilgenbach, Y.Y Lau, J.W. Luginsland, W. White, N.M. Jordan, P. Pengvanich, Y. Hidaka and H. Bosman, "Magnetic Priming Effects on Noise, Startup and Mode Competition in Magnetrons", IEEE Transactions on Plasma Science, Special Issue of Invited Papers from ICOPS 2004, 2005.
• V.B. Neculaes, M.C, Jones, R.M. Gilgenbach, Y.Y. Lau, J.W. Luginsland, W.M. White, N.M. Jordon, P. Pengvanich, Y. Hidaka, "Magnetic Perturbation effects on Noise and Starup in DC Operating Oven Magnetrons", IEEE Transactions on Electron Devices, Special Issue of IVEC papers, 2005.
• M.C. Jones, V.B. Neculaes, W.M. White, Y.Y. Lau, R.M. Gilgenbach, J.W. Luginsland, P. Pengvanich, N.M. Jordan, Y. Hidaka, and H.L. Bosman, "Simulations of Magnetic Priming in a Relativistic Magnetron", submitted to IEEE Transactions on Electron Devices, Special Issue of IVEC papers, 2005.

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2004

Refereed Journal Articles

• M.C. Jones, V.B. Neculaes, Y.Y. Lau, R.M. Gilgenbach, and W. M. White, " Cathode Priming of a relativistic Magnetron", Applied Physics Letters, 85, p6332, Dec. 27, 2004
• H. Bosman, W. Tang, Y.Y. Lau, and R.M. Gilgenbach, "Heating of a particulate by RF electric and RF magnetic fields", Applied Physics Letters, 85, p3319, 2004
• "Projection Ablation Lithography Cathode for High Current Relativistic Magnetron", M.C. Jones, V.B. Neculaes, R.M. Gilgenbach, W.M. White, M.R. Lopez, Y.Y. Lau, T.A. Spencer, and D. Price, Review of Scientific Instruments, 75, p2976, Sept. 2004
• "Three-Dimensional Particle in Cell Simulations of Rapid-Startup in Strapped Oven magnetrons Due to Variation in the Insulating magnetic Field", Luginsland, Lau, Neculaes, Frese, Watrous, Gilgenbach and Jones, Applied Physics Letters, 84, p5425, (2004)
• David W. Jordan, Ronald M. Gilgenbach, Michael D. Uhler, Linda H. Gates, and Y. Y. Lau, "Effect of Pulsed, High-Power Radiofrequency Radiation on Electroporation of Mammalian Cells", IEEE Transactions on Plasma Science, Special Issue on Bioeffects, Vol 32, p 1573, October, 2004
• Mike R. Lopez, Ronald M. Gilgenbach, Michael C. Jones, William M. White, David W. Jordan, Mark. D. Johnston, Trevor S. Strickler, V. Bogdan Neculaes, Y. Y. Lau, Thomas A. Spencer, Michael D. Haworth, Keith L. Cartwright, Peter J. Mardahl, John W. Luginsland, and David Pricec. "Relativistic Magnetron Driven by a Microsecond E-Beam Accelerator with a Ceramic Insulator", IEEE Transactions on Plasma Science, Special Issue on High Power Microwaves, 32, 1171, (June 2004)
• Richard Kowalczyk, Y. Y. Lau, and R. M. Gilgenbach, "Effects of a Finite Axial Magnetic Field on the Beam Loading on a Cavity", IEEE Transactions on Electron Devices, 51, p1522, September 2004
• Herman Bosman, Y. Y. Lau, Ronald M Gilgenbach, "Power Absorption By Thin Films On Microwave Windows", IEEE Transactions on Plasma Science, Special Issue on High Power Microwave Generation, 32, p1292-1297, (June 2004)
• S. Bhattacharjee, J.H. Booske, C. L. Kory, D.W. van der Weide, S. Limbach, S. Gallagher, J.D. Welter, M.R. Lopez, R.M. Gilgenbach, R.L. Ives, M.E. Read, R. Divan, and D.C. Mancini, "Folded Waveguide Traveling Wave Tube Sources for THz Radiation", IEEE Transactions on Plasma Science, Special Issue on High Power Microwaves, 32, p,1002-1014, (June 2004)
• V.B. Neculaes, R.M. Gilgenbach, Y.Y. Lau, M.C. Jones, and W. White, "Low-noise microwave oven magnetrons with fast start-oscillation by azimuthally varying axial magnetic fields", IEEE Transactions on Plasma Science, Special Issue on High Power Microwaves, 32, 1152, (June 2004)
• M.C. Jones, R.M. Gilgenbach, et al, "Ablation Plasma Ion Implantation Using a DC Power Supply", Applied Physics A, Materials Science and Processing, A79, p969-9711, (2004)
• M.C. Jones, V.B. Neculaes, W. White, Y.Y. Lau, and R.M. Gilgenbach, "Simulation of rapid startup in microwave magnetrons with azimuthally varying axial magnetic fields", Applied Physics Letters, 84, p1016, (2004).

Books

• R.M. Gilgenbach, Yue-Ying Lau, H. McDowell, K.L. Cartwright, and T.A. Spencer, "Crossed-Field Devices", Chapter 6 in Modern Microwave and Millimeter Wave Power Electronics, edited by R.J. Barker, N.C. Luhmann, J.H. Booske, and G.S. Nusinovich, IEEE Press, Piscataway, NJ 2004.

2003

Refereed Journal Articles

• T.S. Strickler, R.M. Gilgenbach, M.D. Johnston, and Y.Y. Lau, "Efficient Computation of Current in Multi-Wire Z-Pinch Arrays", IEEE Transactions on Plasma Science, Vol. 31, Dec, 2003.
• M.D. Johnston, Y.Y. Lau, R.M. Gilgenbach, T.S. Strickler, M.C. Jones, M.E. Cuneo, and T.A. Melhorn, "Caterpillar Structures in single-wire Z-pinch experiments", Applied Physics Letters, 83, p4915, (2003).
• V.B. Neculaes, R.M. Gilgenbach, and Y.Y. Lau, "Low-noise microwave magnetrons by azimuthally varying axial magnetic field", Applied Physics Letters, 83, p1938 (2003). PDF (200kB)
• M. Lopez, Y.Y. Lau, R.M. Gilgenbach, D.W. Jordan, J.W. Luginsland,"Limiting Current in a Relativistic Diode Under the Condition of Magnetic Insulation", Physics of Plasmas, Vol. 10, Nov. 2003
• S. Bhattacharjee, C. Marchewka, J.Welter, R. Kowalczyk, C. B.Wilsen, Y. Y. Lau, J. H. Booske, A. Singh, J. E. Scharer, R.M. Gilgenbach, M. J. Neumann, and M.W. Keyser, "Suppression of Third-Order Intermodulation in a Klystron by Third-Order Injection", Physical Review Letters, 90, 2003.
• B. Qi, R.M. Gilgenbach, M.C. Jones, M.D. Johnston, Y.Y. Lau, L.M. Wang, J. Lian, G.L. Doll, and A. Lazarides, "Diagnostic Characterization of Ablation Plasma Ion Implantation", J. Applied Physics, 93 (2003).
• "Microwave Absorption in a Thin Film", H. Bosman, Y.Y. Lau, R.M. Gilgenbach, Applied Physics Letters, 82 page 1353, 2003.
  

Abstracts and Presentations

International Vacuum Electronics Conference, Seoul, Korea, May 30

• R.M. Gilgenbach, Necules, Lopez, Jones, White, Lau, Pengvanich, Johnston, Strickler, Spencer, Luginsland, Haworth, Cartwright, Mardahl, Murphy, and Price, "Mode Locking and Mode Control in Nonrelativistivc and Relativistic Magnetrons", Invited talk

Minicourse Taught at Seoul National University, Seoul, Korea, May 31

• R.M. Gilgenbach, "Crossed Field Microwave Devices"

International Conference on Plasma Science, Jeju, Korea, June 1-5

• R.M. Gilgenbach, Necules, Lopez, Jones, White, Lau, Pengvanich, Johnston, Strickler, Spencer, Luginsland, Haworth, Cartwright, Mardahl, Murphy and Price, "Mode Competition in Relativistic Magnetrons and Injection Locking in kW Magnetrons", Invited talk

ElectroMed 2003, San Antonio, TX, USA, June 13

• D. W. Jordan, R. M. Gilgenbach, M. D. Uhler, L. Gates, and Y. Y. Lau, "Effects of pulsed, high power radio frequency radiation on electroporation of mammalian cells"

XVIIth International Symposium on Bioelectrochemistry and Bioenergetics, Florence, Italy, June 19-24

• R.M. Gilgenbach, D. Jordan, M.D. Uhler, L. Gates and Y.Y. Lau, "High Power, Pulse Radio-Frequency and Ultrawideband Radiation Effects on Electroporation of Mammallian Cells"

16th International Symposium on Plasma Chemistry, Taormina, Italy, June 22-27

• R.M. Gilgenbach, B. Qi, M.C. Jones, Y.Y. Lau, A. Lazarides, "Ablation Plasma Ion Implantation Processing of 10-20 Nanometer Layered Materials."

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2002

Refereed Journal Articles

• "Cathode effects on a relativistic magnetron driven by a microsecond electron beam accelerator", M.R. Lopez, R.M. Gilgenbach, D.W. Jordan, S. Anderson, M.D. Johnston, M.W. Keyser, H. Miyake, C.W. Peters, M.C. Jones, V. B. Neculaes, Y.Y. Lau, T.A. Spencer, J.W. Luginsland, M. Haworth, R.W. Lemke,D. Price, IEEE Trans. Plasma Science, Special Issue on High Power Microwaves, 30, p947, 2002
• "A simulation study of beam loading on a cavity", C. Wilsen, J. Luginsland, Y.Y. Lau, T.M. Antonsen, D.P. Chernin, P.M. Tchou, M.W. Keyser, R.M. Gilgenbach, and L.D. Ludeking, IEEE Trans. Plasma Science, Special Issue on High Power Microwaves, 30, p1160, 2002.
• "A Note on Current Modulation from Nonlinear Electron orbits", C.B. Wilsen, Y.Y. Lau, D. Chernin, and R.M. Gilgenbach, IEEE Transaction on Plasma Science, Special Issue on High Power Microwave Generation, 30, p1176, 2002.

Abstracts and Presentations

APS Division of Plasma Physics

• Optimization of Ablation Plasma Ion Implantation
• Frequency-Phase Locking and Noise in Crossed-Field Microwave Devices
• Long-pulse Relativistic Magnetron Experiments and a Theory of Relativistic Crossed-Field Limiting Current
• Diagnosis of Initial Conditions in Wire Z-Pinches
• Absorption of microwaves and millimeter waves in thin films
• A compact folded waveguide traveling wave tube oscillator for the generation of Terahertz radiation

Gaseous Electronics Conference

• Optimization and Deposition of Coatings by Pulsed and DC Ablation Plasma Ion Implantation

Infrared and Millimeter Wave Conference

• Relativistic Magnetron Experiments, Simulations, and a Novel Theory of Relativistic Crossed-Field Limiting Current

IEEE International Conference on Plasma Science

• Ablation Plasma Ion Implantation (APII) for Deposition of Metal Coatings
• Relativistic and Nonrelativistic Magnetron Experiments and A Novel Theory of Relativistic Crossed-Field Limiting Current
• Intermodulation products in a Klystron
• A novel theory of relativistic crossed-field limiting current

14th International Conference on High-Power Particle Beams and 5th International Conference on Dense Z- Pinches

• Hydrogen Desorption Experiments on Rapidly-Heated Metal Foils and Wires

TMS Annual Meeting

• Deposition of Metal Coatings Utilizing Ablation Plasma Ion Implantation

Vacuum Electronics Conference

• Relativistic magnetron experiments and novel theory on the limiting current in a relativistic, magnetically-insulated diode
• Investigation of a diamond window failure mechanism
• Intermodulation products in a klystron
• A simulation study of beam loading in a cavity

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2001

Refereed Journal Articles

• "Ablation Plasma Ion Implantation Experiments: Measurement of Fe Implantation into Si", B. Qi, R.M. Gilgenbach, Y.Y. Lau, M.D. Johnston, J. Lian, L.M. Wang, G. L. Doll and A. Lazarides, Applied Physics Letters, 78 3785 (June 11, 2001)
• "Single Surface Multipactor on a Dielectric Surface", R. Anderson, W.Getty, M.L. Brake, Y.Y. Lau, R.M. Gilgenbach, and A. Valfells, Review of Scientific Instruments, July 2001
• "Extraction of Ions from the Matrix Sheath in Ablation-Plasma Ion Implantation", B. Qi, Y.Y. Lau, R.M. Gilgenbach, Applied Physics Letters, 78 706 (Feb. 5,2001)
• A. Valfells, D. W. Feldman, P. G. OShea, and Y. Y. Lau, "Three Dimensional Effects on Virtual Cathode Formation in Electron Guns", Phys. Plasmas (submitted, 2001).
• F. He, Y. Y. Lau, D. P. Umstadter, and T. Strickler, "Phase Dependence of Electron Orbits in an Ultra-intense Laser Field", Phys. Rev. Lett. (submitted, 2001).
• Y. Y. Lau, "A simple theory on the two-dimensional Child-Langmuir Law", Phys. Rev. Lett. 87, 278301 (2001).
• L. K. Ang, T. J. T. Kwan, and Y. Y. Lau, "Limiting current density in a crossed-field nanogap", Phys. Rev. E 64, 17501 (2001).
• K. L. Jensen, Y. Y. Lau, and D. McGregor, "Photo Assisted Field Emission from a Silicon Emitter", Solid-State Electronics, 45, 831 ( 2001).

Books

• R.M. Gilgenbach, et al, Coauthor of Chapter 6: "Gyrotron Oscillators and Amplifiers", and Chapter 9: "Cathodes and Electron Guns", in High Power Microwave Sources and Technologies, Edited by R.J. Barker and E. Schamiloglu, IEEE Press, Series on RF and Microwave Technologies, Pistcataway, NJ, 2001
  

Abstracts and Presentations

APS Division of Plasma Physics

• Characterization of Hydrogen Desorption from Rapidly-Heated Metal Foils and Wires
• Demonstration and Analysis of Materials Processing by Ablation Plasma Ion Implantation
• Experiments on Relativistic, 100's MW Magnetrons and Low Voltage, kW Magnetron
• An Investigation of Beam Loading in a Cavity

Gaseous Electronics Conference

• Implantation of Iron Ions into Silicon by Ablation Plasma Ion Implantation

IEEE International Conference on Plasma Science

• Analysis of materials processed by ablation plasma ion implantation
• Relativistic L-band magnetron and nonrelativistic oven magnetron experiments
• Multipactor experiment on a dielectric surface
• An investigation of beam loading in a cavity
• Intermodulation in klystrons and TWTs
• Initial experimental investigations of intermodulation in a klystron amplifier
• Desorption of hydrogen from rapidly heated metal foils and wires

Infrared and Millimeter Wave Conference

• Investigations of microwave pulse shortening in a high power coaxial gyrotron

Vacuum Electronics Conference

• Theory of intermodulation in a klystron

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2000

Refereed Journal Articles

• "Theory of Intermodulation of a klystron", Y.Y. Lau, D.P. Chernin, C. Wilsen, and R.M. Gilgenbach, IEEE Trans. Plasma Science, 28 959 June (2000)
• "Long Pulse, High Power, Large-Orbit, Coaxial Gyrotron Oscillator Experiments", R.L. Jaynes, R.M. Gilgenbach, C.W. Peters, W.E. Cohen M.R. Lopez, Y.Y. Lau, W.J. Williams, and Thomas A. Spencer, IEEE Trans. Plasma Science, 28 945 June (2000)
• "Radio frequency plasma cleaning for mitigation of high-power microwave pulse-shortening in a coaxial gyrotron", William E. Cohen, Ronald M. Gilgenbach, Reginald L. Jaynes, Christopher W. Peters, Mike R. Lopez, Y. Y. Lau, Scott A. Anderson, and Mary L. Brake, and Thomas A. Spencer, Applied Physics Letters, 2000 77 p3725-3727, Dec. 4
• "Effects of an external magnetic field, and of oblique radio-frequency electric fields on multipactor discharge on a dielectric", A. Valfells, L.K. Ang, Y.Y. Lau, and R.M. Gilgenbach, Physics of Plasmas 7 750 (Feb. 2000)
• K. L. Jensen, Y. Y. Lau, and D. McGregor, "Analysis of a Photo Assisted Field Emission Device", Appl. Phys. Lett. 77, 585 (2000).
• Y. Y. Lau, K. L. Jensen, and B. Levush, "A Comparison of Flicker Noise and Shot Noise on a Hot Cathode", IEEE Trans. Plasma Sciences 28. 794 (2000).
• K. L. Jensen, Y. Y. Lau, and B. Levush, "Migration and Escape of Barium Atoms in a Thermionic Cathode", IEEE Trans. Plasma Sciences 28. 772 (2000).
• Y. Y. Lau, D. Chernin, and W. M. Manheimer, "A Note on Low Frequency Ion Noise and Its Reduction in Linear Beam Microwave Tubes", IEEE Trans. Plasma Sciences 28. 790 (2000).
• A. Valfells, J. P. Verbonceour, and Y. Y. Lau, "Space Charge Effects on Multipactor on Dielectric", IEEE Trans. Plasma Sci. 28, 529 (2000)

Abstracts and Presentations

APS Division of Plasma Physics

• Experiments on Relativistic versus Nonrelativistic Magnetrons
• Experiments and Theory of Ablation Plasma Ion Implantation

Gaseous Electronics Conference

• Single Surface Multipactor Experiment on a Dielectric Surface
• Ablation Plasma Ion Implantation (APII)

IEEE International Conference on Plasma Science

• Ablation plasma ion implantation
• Magnetron simulations and experiments
• Pulse-shortening observations in large-orbit, coaxial gyrotron high power microwave experiments
• A design for a multipactor experiment on a dielectric surface
• Theory of intermodulation in a klystron

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1999

Refereed Journal Articles

• "Electron Beam Ablation of Materials", S.D. Kovaleski, R.M. Gilgenbach, L.K. Ang, and Y.Y. Lau, J. Applied Physics, 86 7129 (1999)
• "Radio Frequency Plasma Processing Effects on the Emission Characteristics of a MeV Electron Beam Cathode", J.I. Rintamaki, R.M. Gilgenbach, et al., Applied Physics Letters, vol. 75, p 31, (July 5, 1999)
• "Resonant absorption of a short-pulse laser in a doped dielectric", L.K. Ang, Y.Y. Lau, and R.M. Gilgenbach, Applied Physics letters, 74, 2912 (May 17, 1999)
• "Science and Applications of Energy Beam Ablation," R. M. Gilgenbach, S.D. Kovaleski, J.S. Lash, L.K. Ang and Y.Y. Lau, Invited Review Paper in IEEE Trans. Plasma Science, 27, p150-158, Feb. 1999.
• "Velocity Ratio Measurement Diagnostics and Simulations of a Relativistic Electron Beam in an Axis Encircling Gyrotron", R.L. Jaynes, R.M. Gilgenbach, J.M. Hochman, et al, in the Special Issue on Images in Plasma Science, 27, p136-138, Feb. 1999.

Abstracts and Presentations

APS Division of Plasma Physics

• Resonant absorption of a short-pulse laser in a doped dielectric
• Effects of Magnetic Fields, and of Oblique RF Electric Fields on Susceptibility to Multipactor Discharge on a Dielectric
• Multipactor Discharge and RF Window Failure
• Optical Diagnostics of Laser Ablation Plumes
• Plasma Processing and Optical Emission Spectroscopy in High Power Microwave Pulse Shortening Experiments
• Comparison of Slotted and Unslotted Multi-MW Large-Orbit, Axis Encircling, Coaxial Gyrotron Oscillators
• Time-Frequency Analysis of High Power Microwaves Using Discrete Prolate Spherical Sequences

Gaseous Electronics Conference

• Optical Diagnostic Characterization of Laser and Electron Beam Ablation Plasma Plumes

IEEE International Conference on Plasma Science

• Effects of RF plasma processing on the impedance and electron emission characteristics of a MV beam diode
• Microwave production and beam transport in a multi-MW large-orbit, axis encircling, coaxial gyrotron oscillator
• Optical spectroscopy of plasma and plasma processing in high power microwave pulse shortening experiments
• Electron beam ablated plasma plumes and deposited thin films of fused silica
• Laser heated LaB 6thermionic cathode on a MV electron beam accelerator
• Resonant absorption of a short-pulse laser in a doped dielectric
• A theory of RF window failure
• Susceptibility diagram of multipactor discharge on a dielectric-effects of an external magnetic field and oblique RF electric field

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1998

Refereed Journal Articles

• "Dynamics of electron beam ablation of silicon dioxide measured by dye laser resonance absorption photography", S.D. Kovaleski, R.M. Gilgenbach, L.K. Ang, and Y.Y. Lau Applied Physics Letters,73 2576 (1998)
• "Time-Frequency Analysis of modulation of high power microwaves by electron-beam voltage fluctuations", C. W. Peters, R.L. Jaynes, Y.Y. Lau, R.M. Gilgenbach, W.J. Williams, J.M. Hochman, W.E. Cohen, J.I. Rintamaki, D.E. Vollers, J. Luginsland and T.A. Spencer, Phys. Rev. E, 58 6880 (November 1998)
• "Optical Spectroscopy of Plasma in High Power Microwave Pulse Shortening Experiments Driven by a ms e-Beam", R.M. Gilgenbach, J.M. Hochman, R.L. Jaynes, W.E.Cohen, J.I. Rintamaki, C.W. Peters, D.E.Vollers, Y.Y. Lau, and T.A. Spencer, IEEE Transactions on Plasma Science, Special Issue on High Power Microwaves,26 282 (1998)
• "Polarization control of microwave emission from high power rectangular cross section gyrotron devices, J.M. Hochman, R.M. Gilgenbach, R.L. Jaynes, J.I. Rintamaki, Y.Y. Lau, W.E. Cohen, C. Peters, and T.A. Spencer, IEEE Transactions on Plasma Science, Special Issue on High Power Microwaves,26 383 (1998)
• "Power deposited on a dielectic by multipactor", L.K. Ang, Y.Y. Lau, R.A. Kishek, and R.M. Gilgenbach, IEEE Transactions on Plasma Science, Special Issue on High Power Microwaves,26 290 (1998)
• "Electron beam ablation versus laser ablation: plasma plume diagnostic studies", by S. Kovaleski, R.M. Gilgenbach, L.K. Ang, Y.Y. Lau, and J.S. Lash, Applied Surface Science, 127-129 947-952 (1998)
• "Multipactor Discharge on metals and dielecrics: Historical Review and recent theories, R.A. Kishek, L.K. Ang, A. Valfells, and R.M. Gilgenbach, Physics of Plasmas, 5 2120 (1998)
• "Surface instability of multi-pulse laser ablation on a metallic target", by: L.K. Ang, Y.Y. Lau, R.M. Gilgenbach, H.L. Spindler, J.S. Lash, and S.D. Kovaleski, Journal of Applied Physics, 83 4466 (1998)
• E. Schamiloglu and Y. Y. Lau, Guest Editorial - The Seventh Special Issue on High Power Microwave Generation, IEEE Trans. Plasma Sci. 26, 232 (1998).
• L. K. Ang and Y. Y. Lau, Absolute Instability in a Traveling Wave Tube Model, Phys. Plasmas 5, 4408 (1998).
• J. W. Luginsland, S. McGee, and Y. Y. Lau, Virtual Cathode Formation due to Electromagnetic Transients, IEEE Trans. Plasma Sci. 26, 901 (1998).
• A. L. Garner, Y. Y. Lau, and D. Chernin, Collapse of Cycloidal Flows Induced by Misalignments in a Magnetically Insulated Diode, Phys. Plasmas 5, 2447 (1998).
• R. A. Kishek, L.K. Ang, A. Valfells,  Y. Y. Lau, and R.M. Gilgenbach, "Multipactor Discharge on a Dielectric:  Historical Review and Recent Theories",Physics of Plasmas, 5 2120 (1998) 
• A. Valfells, R. A. Kishek, and Y. Y. Lau, "Frequency Response in Multipactor Discharge", Phys. Plasma 5, 300 (1998).

Abstracts and Presentations

APS Division of Plasma Physics

• Resonant absorption of a short electromagnetic pulse
• Dynamics of Electron Beam Ablation of Fused Silica versus Silicon
• Multi-MW Large-Orbit, Axis Encircling, Coaxial Gyrotron Oscillator Experiments
• Optical Spectroscopy of Plasma and Plasma Processing in High Power Microwave Pulse Shortening Experiments
• A Theory of RF Window Failure
• Joint Time-Frequency Analysis of High Power Microwave Signals
• Laser-Heated Thermionic Cathodes for Long-Pulse Electron Beam Generation
• Effects of RF Plasma Processing on the Impedance and Electron Emission of a High Voltage Beam Diode

Gaseous Electronics Conference

• Electron Beam Ablation Plumes: Diagnostic Studies and Thin Film Deposition

IEEE International Conference on Plasma Science

• Diagnostic studies of ablation plumes generated by a channelspark electron beam
• Contaminant and surface effects on the impedance and plasma emission of a high voltage beam diode
• Multipactor discharge on a dielectric
• Experiments and diagnostics of multi-MW, large-orbit, axis-encircling, coaxial gyrotron oscillator
• Optical spectroscopy of plasma in high power microwave pulse shortening experiments driven by a microsecond electron beam
• Surface instability on a metal target from multi-pulse KrF laser ablation

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1997

Refereed Journal Articles

• "An analysis of laser absorption on a rough metal surface", L.K. Ang, Y.Y. Lau, R.M. Gilgenbach, and H.L. Spindler, Applied Physics Letters, 70 696 (1997)
• J. W. Luginsland, M. J. Arman, and Y. Y. Lau, "High Power Transit Time Oscillator: Onset of Oscillation and Saturation", Phys. Plasmas 4, 4404 (1997).
• R. A. Kishek, Y. Y. Lau, and D. Chernin, "Steady State Multipactor and Dependence on Material Properties", Phys. Plasmas 4, 863 (1997).

Abstracts and Presentations

APS Division of Plasma Physics

• Diagnostic Experiments and Simultions of a Large Orbit Rectangular Cross Section Gyrotron
• Optical Spectroscopy of Plasma in a High Power Gyrotron
• Multipactor Discharge on a Dielectric
• Supprression of Multipactor Discharge by an Auxilliary RF Signal
• Polarization Control of High Power Microwave Emission from a Large Orbit, Rectangular Cross Section Gyrotron
• Formation of 10-100 Micron Surface Structures of a Metal Target from Multi-pulse KrF Laser ablation
• Electron Beam Ablation and Deposition
• H_2O Effects on the Impedance of a High Voltage Beam Diode

Gaseous Electronics Conference

• Electron Beam Ablation of Metal and Fused Silica

IEEE International Conference on Plasma Science

• Two dimensional Child-Langmuir law
• Polarization control in high power microwaves from a rectangular cross section gyrotron
• Diagnostic experiments to measure frequency and alpha for rectangular cross section gyrotrons
• Analysis of surface structures of a metal target from multi-pulse KrF laser ablation
• Imaging and spectroscopic analysis of channel spark electron beam ablation plumes
• Characterization of RF plasma cleaning protocols for removal of contaminants in high voltage beam diodes
• Frequency response in multipactor discharge

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1996

Refereed Journal Articles

• "2-D Child Langmuir Law", J.Luginsland, Y.Y. Lau, and R.M. Gilgenbach, Physical Review Letters, 77, pp. 4668- 4670 (1996).
• "Effects of Tapering on Gyrotron Backward Wave Oscillators" M.T. Walter, R.M. Gilgenbach, J.W. Luginsland, J.M. Hochman, J.I. Rintamaki, R.L. Jaynes, Y.Y. Lau, and T.A. Spencer, IEEE Transactions on Plasma Science, Special Issue on High Power Microwaves, 24 p.636-647 (1996)
• "Effects of laser-ablation target damage on particulate production investigated by laser scattering with deposited thin-film and target analysis", H.L. Spindler, R.M. Gilgenbach, and J.S. Lash, Applied Physics Letters,68 3245 (1996)
• "Results from gyrotron backward wave oscillator experiments utilizing a high current, high voltage annular electron beam", T.A. Spencer, C.E. Davis, K.J. Hendricks, F.J. Agee, and R.M. Gilgenbach, IEEE Transactions on Plasma Science, Special Issue on High Power Microwaves, 24 p.630-635(1996)
• "Ionization Dynamics of iron plumes generated by laser ablation versus a laser-ablation-assisted-discharge", J. S. Lash, R.M. Gilgenbach, and H.L. Spindler, J. Appl. Phys.79 2287 (1996)
• J. W. Luginsland, A. Valfells, and Y. Y. Lau, "Effects of a SeriesResistor on Electron Emission from a Field Emitter", Appl. Phys. Lett. 69, 2770 (1996).
• P. J. Christenson, D. Chernin, A. Gardner, and Y. Y. Lau, "Resistive Destabilization of Cycloidal Electron Flow and Universality of (Near) Brillouin Flow in a Crossed-Field Gap", Phys. Plasmas 3, 4455 (1996).
• R. A. Kishek and Y. Y. Lau, "A Novel Phase Focusing Mechanism in Multipactor Discharge", Phys. Plasmas (Lett.) 3, 1481 (1996). 80. W. W. Destler and Y. Y. Lau, "George Bekefi: a Tribute", IEEE Trans. Plasma Sci. 24, 556 (1996).
• P. J. Christenson and Y. Y. Lau, "One-dimensional Instability in a Crossed-Field Gap", Phys. Rev. Lett. 76, 3324 (1996).
• J. L. Luginsland, Y. Y. Lau, K. Hendricks, and P. D. Coleman, "A Model of Injection Locked Relativistic Klystron Oscillator", IEEE Trans. Plasma Sci. 24, 935 (1996).76) Y. F. Liu and Y. Y. Lau, "An Evaluation of the Intrinsic Emittance of a Field Emitter", J. Vac. Sci. Tech. B 14, 2126 (1996).

Abstracts and Presentations

APS Division of Plasma Physics

• High Power Microwave Emission of Large and Small Orbit Gyrotron Devices in Rectangular Interaction Structures
• Diagnostic Experiments and Simulation for Relativistic Electron Beams in Axially Varying Magnetic Fields for Applications to Gyrotrons
• Optical Emission Spectroscopy and Residual Gas Analysis of Contaminants in Ion Beam Diodes
• An analysis of laser absorption on a rough metal surface
• Ablation of Metals for Materials Processing via a Channelspark Electron Beam
• Steady State Multipactor and Dependence on Material Properties
• An Analysis of Multipactor in an External Magnetic field

Gaseous Electronics Conference

• Electron Beam Ablation of Metals
• Plasma Ionization Dynamics of Energy Beam Ablation of Materials

IEEE International Conference on Plasma Science

• Rectangular interaction structures in high power gyrotron devices
• Relativistic electron beam dynamics in high power gyrotron devices
• Investigation of lower order mode suppression in a high current, high voltage gyro-BWO experiment
• Ablation of metals by a channelspark electron beam
• Interactions of multipactor and RF circuit
• RF plasma processing for removal of contaminants in a high voltage anode-cathode gap
• KrF laser ablation target analysis and thin film deposition

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1995

Abstracts and Presentations

APS Division of Plasma Physics

• Non-Axisymmetric Mode Competition in a High Current, High Voltage TE_01 Gyrotron-Backward-Wave Oscillator Experiments
• High Power Gyrotron Devices Utilizing Rectangular Interaction Structures
• Multipactor Discharge in an RF Circuit
• Resonant Ultraviolet Interferometry Measurements of Iron Ions and Neutral Atoms from Laser-Ablation and a Laser-Ablation-Assisted-Plasma Discharge Ion Source
• Characterization of Particulate Generated from the KrF Excimer Laser Ablation of Aluminum
• Surface Contaminant Characterization for Ion Beam Diodes

IEEE International Conference on Plasma Science

• Effects of magnetic tapering and tapered tubes on long-pulse, intense e-beam GYRO-BWO microwave emission
• Mode competition in a high current, high voltage gyro-BWO experiment
• High current, annular e-beam generation and transport experiments
• Interactions of multipactor and RF circuit
• Characteristics of metal thin film deposition by laser ablation and laser-ablation-assisted-plasma-discharge

Particle Accelerator Conference

• Temporal evolution of multipactor discharge

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1994

Abstracts and Presentations

APS Division of Plasma Physics

• Laser-Ablation-Assisted Discharge Source of Metallic Ions
• Design Studies of a Novel Two-Beam Accelerator (Twobetron)
• Tapering of Gyrotron-Backward-Wave-Oscillators Driven by A Microsecond, Intense E-Beam
• Gyrotron-Backward-Wave Oscillator Experiments

Gaseous Electronics Conference

• Behavior of Lithium in a Microwave Resonant Cavity Discharge

IEEE International Conference on Plasma Science

• Experiments On High Power, Long-pulse Gyrotron-Backward-Wave-Oscillators
• Magnetic Tapering Of Intense E-beam, Long-pulse Gyro-BWOs
• Effects Of A Transverse-magnetic Field On A Laser-ablation-assisted-plasma Discharge Ion Source
• Laser Ablation Of Al/sub 2/O/sub 3/ Ceramic In Gas And Plasma Environments

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1993

Abstracts and Presentations

IEEE International Conference on Plasma Science

• Long-pulse gyrotron-backward-wave oscillator experiments
• Tapered gyrotron-backward-wave-oscillators for high power, long-pulse microwave generation
• Resonant Holographic Interferometry Measurements Of Laser Ablated Atom Absolute-line-density Profiles In Vacuum, Gases, And Plasmas

Particle Accelerator Conference

• Experimental reduction of electron beam breakup instability using external coupled cavities
• Beam breakup in an annular beam
• Tapered tube, microsecond electron beam gyrotron backward-wave-oscillators

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1992

Abstracts and Presentations

International Conference on Plasma Physics

• Excimer Laser Ablation Processing Of Materials In Gas And Plasma Environments
• Gyrotroon-backward-wave oscillators driven by a microsecond electron beam accelerator
• Optical Diagnostics Of Copper Vapor Laser Machining Of Polymers

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1991

Abstracts and Presentations

IEEE International Conference on Plasma Science

• Deflection Of Carbon Dioxide Laser And Helium-neon Laser Beams In A Long-pulse Relativistic Electron Beam Diode
• Hydrodynamics of excimer laser ablation processing of polymers and metals in gaseous environments and vacuum
• High-Q Bragg Resonator Cyclotron Resonance Maser Experiments On A long-pulse electron beam accelerator
• High-power, Long-pulse Gyro-BWO Cyclotron Resonance Maser Experiments

Particle Accelerator Conference

• Experiments on the beam breakup instability in long-pulse electron beam transport through RF cavity systems

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1990

Abstracts and Presentations

IEEE International Conference on Plasma Science

• High power microwave emission from cyclotron maser interactions in microsecond, intense electron beams
• Hydrodynamics of excimer laser ablation of polymers in atmospheric pressure gas

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1989

IEEE International Conference on Plasma Science

• High power microwave emission from cyclotron autoresonance maser (CARM) interactions in microsecond, intense electron beams
• Ion channel transport systems for high current electron beam accelerators
• Characterization of the time-evolution of a microsecond electron beam diode with anode effects

International Particle Accelerator Conference

• Transport and stability of long-pulse, high-current electron beams in ion focused regime plasma channels for advanced accelerators

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1995: Proceedings of the First International Workshop on Crossed-Field Devices

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