PROGRAM Monday – June 23rd Morning Session (Chair: S. Gold) 8:00 Opening Remarks V. L. Granatstein, General Chair 8:10 Invited Talk: The TESLA RF System 8:50 Invited Talk: SLAC RF Source Research at X-Band 9:30 Coffee break 9:50 A MAGIC-3D Design of a 11.4 GHz, 150-MW, High Average Power, Double-Sheet Beam, PPM-Focused Klystron S. Choroba D. Sprehn G. Caryotakis 10 10 A 71 dB Gain, High Efficiency Relativistic Klystron Using a High Current Linear Accelerator Traveling Wave Buncher Output Structure J. Haimson 10:40 Invited Talk: Current HPM Source Research T. Spencer 11:20 Round Table Discussion: Long-Pulse High-Power Microwave Sources at the GW Level Moderator: T. Spencer 12:00 Lunch Break Afternoon Session (Chair: G. Nusinovich) 2:00 Invited Talk: Telemetry, Tracking, and Command of Deep Space M. A. Kodis 2:40 Invited Talk: Multiple-Beam Klystrons and Traveling-Wave Tubes: Do They Exclude or Complement Each Other? (This paper was presented in brief by G. Nusinovich) 2:55 Invited Talk: 3:20 Coffee break 3:40 Progress in the development of a 4-cavity, 2nd-harmonic coaxial relativistic gyroklystron 4:00 34 GHz, 45 MW Pulsed Magnicon: First Results 4:20 Development of a High Power Multiple Beam Gun 4:40 Design of an X-Band 50 MW Multiple Beam Klystron 5:00 A Gridded Electron Gun for a Sheet Beam Klystron M. Read 5:20 Round Table Discussion: Multiple-Beam Amplifiers Moderator: B. Levush Multiple-beam Amplifier Development at NRL E. A. Gelvich D. Abe W. Lawson J. L. Hirshfield L. Ives P. Ferguson Evening Session (Chair: N. C. Luhmann, Jr.) A Stroll Down Memory Lane: The Childhood of Microwave Tubes 6:00 American TWTs in the 1950’s C. Birdsall 6:30 Old Know-How in Helix TWTs Developed in the USSR 7:30 Dinner Yu. N. Pchelnikov Tuesday – June 24th Morning Session (Chair: T. M. Antonsen, Jr.) 8:00 Invited Talk: 3-D Design Tools for Vacuum Electron Devices 8:40 TESLA: Large-Signal Simulation Code for Klystrons 9:00 Computer Aided Design of Depressed Collectors for High Power Electron Tubes 9:20 Coffee break 9:40 Advanced Magnetron Injection Guns for Coaxial Gyrotrons and Gyroklystrons A. N. Vlasov 10:00 X-Band Triaxial Klystron A. Singh M. Read J. Pasour 10:20 Effect of RF Parameters on Breakdown Limits in High-vacuum X-Band Structures V. Dolgashev 10:40 A New Version of Passive Pulse Compressors 11:00 Round Table Discussion: RF Breakdown B. Levush A. Phelps Moderator: V. Dolgashev 12:00 Lunch Break Afternoon Session (Chair: V. L. Granatstein) 2:00 Invited Talk: Recent Advances in RF Pulse Compressor Systems at SLAC S. Tantawi 2:40 Active RF Pulse Compressor with a Ferroelectric Switch J. L. Hirshfield 3:00 Active RF Pulse Compressor at 11.4 GHz Using Plasma Switches J. L. Hirshfield 3:20 A Delay Line for Compression of Electromagnetic Pulses 3:40 Coffee break 4:00 Invited Talk: The 10 MW ECRH and CD System for W7-X 4:40 Test Results for a 140 GHz, 1 MW Gyrotron 5:00 Heating of Contaminants on Microwave Windows H. Bosman 5:20 Harmonic Gain and Noise in Frequency Multiplying Gyro-amplifiers J. Rodgers Yu. N. Pchelnikov V. Erckmann H. Jory 6:30 – 7:30 Poster Session (with wine and cheese reception) 7:30 Banquet Poster presentations J. Verboncouer, (UC Berkeley, CA, USA) A PIC-MCC Model for the Plasma Focused Electron Beam in the Pasotron Yu. Bliokh, G. S. Nusinovich, J. Felsteiner, V. L. Granatstein, (Technion, Haifa, Israel and IREAP, UMd, College Park, MD, USA) Magnetic lens as a method of the phase-mixed beam matching O. V. Sinitsyn, G. S. Nusinovich and V. L. Granatstein, (IREAP, UMD, College Park, MD, USA) Comparison of two gyroklystron (GKL) concepts: four-cavity conventional GKL versus clustered-cavity GKL Yu. N. Pchelnikov, (MTS Systems Corp., Sensor Division, Cary, NC, USA) New Slow-Wave Structures for High-Power Electron Devices A. D. R. Phelps, I. V. Konoplev, A. W. Cross, and K. Ronald, (University of Strathclyde, Glasgow, UK) Study of Coaxial 2D Bragg Structures and Their Potential Applications in Microwave Electronics A. D. R. Phelps, H. Yin, A. W. Cross, W. He, and K. Ronald, (University of Strathclyde, Glasgow, UK) Cherenkov Radiation from a Pseudospark-sourced Electron Beam Y. Choyal, T. Watanabe, K. Minami, and V. L. Granatstein, (Niigata University, Niigata City, Japan; National Institute for Fusion Science, Toki City, Japan; University of Maryland, College Park, MD, USA) Analysis of a Large Orbit Backward Wave Oscillator E. S. Gouveia, W. Lawson, B. Hogan, K. Bharathan and V. L. Granatstein, (IREAP, UMD, College Park, MD, USA) Current status of gyroklystron research at the University of Maryland (Part 2) Y. Miao, T. M. Antonsen, Jr., H. Guo, G. S. Nusinovich, V. L. Granatstein, (IREAP, UMD, College Park, MD, USA) Prebunching of electrons in harmonic-multiplying clustered-cavity gyro-amplifiers M. Yedulla, G. S. Nusinovich, and T. M. Antonsen, Jr., (IREAP, UMD, College Park, MD, USA) Start current analysis of a 140 GHz CPI gyrotron Wednesday – June 25th Morning Session (Chair: J. L. Hirshfield) 8:00 Invited Talk: Quasi-Optics in High-Power Millimeter-Wave Systems M. I. Petelin 8:40 Overmoded Waveguide Components for High-Power RF 9:00 Improvement of Selective Properties of Waveguide Bragg Resonators 9:20 Coffee break 9:40 High Power Tests of X-Band Dielectric-Loaded Accelerating Structures on the NRL Magnicon Facility C. D. Nantista M. Fuks 10:00 Pseudo-Periodic Slow-Wave Structures for High-Power Microwave Sources (not presented due to visa problem) V. A. Solntsev 10:20 Invited Talk: Progress in Pasotron Development Y. Carmel 11:00 Mode Competition in Relativistic Magnetrons and Injection Locking in kW Magnetrons 11:20 Round Table Discussion: Micro/nano-technology and THz radiation S. H. Gold V. B. Neculaes Moderator: G. Scheitrum 12:00 Lunch Afternoon Excursion Thursday – June 26th Morning Session (Chair: R. Barker) 8:00 Invited Talk: Spallation Neutron Source RF Source 8:40 Invited Talk: Recent Advances from the DoD Multidisciplinary University Research Initiative Consortium on Innovative Vacuum Electronics 9:20 Coffee break 9:40 The UK High Power RF Faraday Partnership Industrial, Academia and Public Collaboration L. Lenci N. C. Luhmann, Jr. 10:00 Gyroklystron-Powered WARLOC Radar 10:20 Cloud Imaging Using the NRL WARLOC Radar A. D. R. Phelps B. Danly A. W. Fliflet 10:40 Relativistic Millimeter-Wave Gyrodevices V. L. Bratman 11:00 Invited Talk: Mm-Wave Source Development at Los Alamos B. E. Carlsten 11:30 Initial Tests with an X-band Photoinjector at SLAC 11:50 Closing A. E. Vlieks
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