List of Recent Publications:

Papers:

• Y. Pinhasi, Gover, R. W. B. Best, and M. J. van der Wiel, "Transverse mode excitation and coupling in a waveguide free electron laser", Nucl. Inst. and Meth. in Phys. Res., A318, 523-527 (1992).
• W.H. Urbanus, P. W. van Amersfroot, R. W. B. Best, A. B. Sterk, A. G. A. Verhoeven, M. J. van der Wiel, N. H. Lazar, H. Boehmer, A. Gover, Y. Pinhasi, E. Jerby, "A free-electron maser for the monocular fusion", Nucl. Instr. Methods Phys. Res., A318, 16 (1992).
• Y. Neuman, H. Kleinman, and A. Gover, "A new method for measuring magnetic field in mf-cowiggler based on magnetic recording", in Nucl. Inst. and Meth. in Phys. Res., A331, 695-700 (1993).
• A. Gover, "An Israeli FEL Project", Israel Energy News, Summer, p. 6, 1993.
• Y. Pinhasi, A. Gover, "Coupled mode theory of Langmuir space-charge waves for a general e-beam and waveguide cross sections", Phys. Rev., E48, 3925-3929 (1993).
• A. Gover, F. V. Hartemann, G. P. Lesage, N. C. Luhmann, R. S. Zhang, C. Pellegrini, "Time and Frequency Domain analysis of superradiant coherent synchrotron radiation in a wave-guide free-electron laser", Phys. Rev. Letters, 72, 11921195 (1994).
• A. Halperin, A. Gover, A. Yariv, "Electron Beam Induced Super Radiant Emission from a Grating", Phys. Rev., A50, 3316-3321 (1994).
• Y. Pinhasi, M. Cohen, A. Gover, "Three-Dimensional Codes for Simulating e­ Beam Transport and FEL Operation Including Space Charge Effects", Int'l Journal of Electronics, 78, 581-590 (1994).
• I.M. Yakover, Y. Pinhasi, and A. Gover, "Resonator Design and Characterization for the Israeli Tandem Electrostatic FEL Project", Nuclear Inst. and Meth. in Phys. Res., A358, 323-326 (1994).
• Y. Pinhasi and A. Gover, "Three-dimensional coupled-mode theory for free electron laser in the collective regime", Phys. Rev. E, 51, 2472-2479 (1995).
• Y. Pinhasi and A. Gover, "Mode-locked supper-radiant free-electron laser oscillator", Nucl. Instr. Methods Phys. Res., A358, 86-89 (1995).
• M. Cohen, A. Kugel, D. Chairman, M. Arbel, H. Kleinman, D. Ben-Haim, A. Eichenbaum, M. Draznin, Y. Pinhasi, I.M. Yakover, A. Gover, "FEM experiment with pre-bunched beam", Nucl. Instr. Methods Phys. Res., A358, 82-85 (1995).
• M. Cohen, A. Eichenbaum, M. Arbel, D. Ben-Haim, H. Kleinman, M. Draznin, A. Kugel, I. M. Yakover, and A. Gover, "Masing and Single Mode Locking in a Free¡ Electron Maser Employing Prebunched Electron Beam", Phys. Rev. Lett., 74, 3812-3815 (1995).
• M. Cohen, A. Gover, "Effects of azimuthal and radial momentum spread on e­ beam focusing characteristics in the presence of space charge forces", J. Appl. Phys., 77, 1-9 (1995).
• I.M.Yakover, Y. Pinhasi, and A. Gover, "Theoretical investigation of a free electron maser operating with a TEM transmission line", IEEE Trans. of Microwave Theory and Tech. , 44, 1-8 (1996).
• I.M. Yakover, Y. Pinhasi, A. Gover, "Study of Waveguide Resonators for FEL Operating at Submillimeter Wavelengths", Nuclear Inst. and Meth. in Phys. Res., A375, 260-263 (1996).
• M. Cohen, A.L. Eichenbaum, H. Kleinman, M. Arbel, I.M. Yakover, A. Gover, "Report on First Masing and Single Mode Locking in a Prebunched Beam FEM Oscillator", Nucl. Inst. and Meth. in Phys. Res., A375, 17-20 (1996).
• Y. Pinhasi, A. Gover, "Transverse Mode Coupling and Supermode Establishment in a Free Electron Laser Oscillator", Nuclear Inst. and Meth. in Phys. Res., A375, 233-236 (1996).
• A. Abramovich, Y. Pinhasi, V. Sterngratz, L. Gilutin, H. Kleinman, A.L. Eichenbaum, I.M. Yakover, M. Cohen, A. Gover, B. Levush, T.M. Antonsen, V.L. Granatstein, "Measurements and simulation of the radiation build-up process in a prebunched free-electron maser oscillator", Nuclear Inst. and Methods in Phys. Res., A375, 164-168 (1996).
• M. Cohen, A. Eichenbaum, H. Kleinman, D. Chairman, A. Gover, "Single-mode selection and axial mode control in a free-electron maser oscillator using a prebunched electron beam", Phys. Rev. E, 54, 4178 (1996).
• Y. Pinhasi, V. Shterngartz and A. Gover, "Theory and simulation of transverse supermode evolution in a free-electron laser oscillator", Phys. Rev. Lett., 54, 6774 (1996).
• I.M. Yakover, Y. Pinhasi and A. Gover, "Theoretical investigation of a free electron maser operating with a TEM transmission line", IEEE Transactions of Microwave Theory and Techniques, 44, 1-8 (1996).
• Y. Pinhasi, I.M. Yakover, A. Eichenbaum, A. Gover, "Efficient Electrostatic Accelerator Free-Electron Masers for Atmospheric Power Beaming", IEEE Transac. on Plasma Science, 23, 1-8 (1996).
•  A.L. Eichenbaum, A. Abramovich, M. Arbel, M. Cohen, L. Gilutin, A. Gover, H. Kleinman, Y. Pinhasi, S. Volkovich, I.M. Yakover, “Performance Improvement of FEMs by Prebunching of the Electron Beam”, Nucl. Inst. & Meth. in Phys. Res. A 393, pp.361-365, (1997)
• A. Abramovich, M. Arbel, L. Gilutin, H. Kleinman, A.L. Eichenbaum, I.M. Yakover, Y. Pinhasi, I. Marhasine, A. Gover, “Visualization and Simulation of Electron Beam Transport Along a FEL Planar Wiggler”, Nucl. Inst. & Meth. in Phys. Res. A 393, pp.419-425, (1997)
• Y. Pinhasi, A. Gover, “A unified analysis of spontaneous and super-radiant emissions in free-electron lasers”, Nucl. Inst. & Meth. in Phys. Res. A 393, pp.343-347, (1997)
•  I.M. Yakover, Y. Pinhasi, A. Gover, “Spontaneous emission in waveguide free-electron masers near waveguide cutoff”, Nucl. Inst. & Meth. in Phys. Res. A 393, pp. 316-322, (1997).
• A. Abramovich,  A. Arensburg,  D. Chairman, A.L. Eichenbaum, M. Draznin, A. Gover, H. Kleinman, I. Merhasin, Y. Pinhasi, J.S. Sokolowski, I.M. Yakover, M. Cohen, L.A. Levin, O. Shahal, A. Rosenberg, I. Schnitzer, J. Shiloh,  “Lasing and radiation mode dynamics in a Van de Graaff accelerator FEL with an internal cavity”, Applied Physics Lett. 71, 3776-3778 (1997).
• A. Abramovich, A. Arensburg, D. Chairman, A.L. Eichenbaum, M. Draznin, A. Gover, H. Kleinman, I. Merhasin, Y. Pinhasi, J.S. Sokolowski, Y.M. Yakover, M. Cohen, L.A. Levin, O. Shahal, A. Rosenberg, I. Schnitzer, J. Shiloh, “First operation of the Israeli Tandem Electrostatic Accelerator Free-Electron Laser”, Nucl. Inst. & Meth. In Phys. Res. A 407, pp. 16-20, (1998).
• A. Abramovich, Y. Pinhasi, Y.M. Yakover, J.S. Sokolowski, A. Gover, “Simulation of predicted performance and interpretation of radiation measurements on the Israeli tandem free-electron laser”, Nucl. Inst. & Meth. In Phys. Res. A 407, pp. 81-86, (1998).
• Abramovich, Y. Pinhasi, M. Arbel, L. Gilutin, H. Kleinman, A.L. Eichenbaum, Y.M. Yakover, A. Gover, “Experimental investigation of mode build-up and mode competition process in a prebunched free-electron maser oscillator”, Nucl. Inst. & Meth. In Phys. Res. A 407, pp. 87-94, (1998).
• L. Gilutin, A. Abramovich, M. Arbel, A.L. Eichenbaum, A. Gover, H. Kleinman, Y. Pinhasi, Y.M. Yakover, “Free electron maser oscillations near waveguide cutoff”, Nucl. Inst. & Meth. In Phys. Res. A 407, pp. 95-101, (1998).
• I. Merhasin, A. Abramovich, Y. Pinhasi, A. Gover, J.S. Sokolowski, “Optimization of the electron-beam transport in the Israeli tandem FEL”, Nucl. Inst. & Meth. In Phys. Res. A 407, pp.350-355, (1998).
• A. Abramovich, M. Canter, A. Gover, J.S. Sokolowski, Y.M. Yakover, Y. Pinhasi, I. Schnitzer, J. Shiloh, “High spectral coherence in long pulse and continuous free electron laser measurements and theoretical limitations”, Phys. Rev. Lett.,82, pp. 5257-5260, (1999).
• A. Abramovich, Y. Pinhasi, H. Kleinman, A.L. Eichenbaum, Y.M. Yakover, A. Gover, “Efficiency enhancement of Free Electron Maser Oscillator by mode selection with a prebunched electron –beam”, Appl. Phys. Lett. Vol. 76, No. 1, pp. 16-18, (2000).
• A. Abramovich, Y. Pinhasi, H. Kleinman, A. Eichenbaum, Y. Yakover, A. Gover, “Efficiency enhancement of a pre-bunched FEM oscillator by locking to a single eigenfrequency of the resonator”, Nucl. Inst. & Meth. in  Phys. Res. A429, pp. 107-110, (1999).
• A. Abramovich, Y. Pinhasi, Y. Yakover, A. Gover, J. Sokolowski, M. Canter, “Study of radiation build-up and spectral evolution in the Israeli electrostatic accelerator FEL oscillator”, Nucl. Inst. & Meth. in  Phys. Res. A429, pp. 101-106, (1999).
• M. Arbel, A.L. Eichenbaum, Y. Pinhasi, Y. Lurie, M. Tecimer, A. Abramovich, H. Kleinman, A. Gover, “Super-radiance in a prebunched beam free electron maser”, Nucl. Inst. & Meth. In Phys. Res. A445, pp. 247-252, (2000).
• M.V. Krongauz, Y. Pinhasi, M. Tecimer, A. Gover, “Power, bistability and post-saturation optimization in a pre-bunched free electron laser” Nucl. Inst. & Meth. In Phys. Res. A445, pp. 28-33, (2000).
• M. Arbel, A. Abramovich, A.L. Eichenbaum, A. Gover, H. Kleinman, Y. Pinhasi, I.M. Yakover, “Super-Radiant and stimulated super-radiant emission in a Pre-Bunched beam Free Electron Maser”, Phys. Rev. Lett.,86, p 2561-2564 (2001).
• M. Arbel, A.L. Eichenbaum, Y. Pinhasi, Y. Lurie, A. Abramovich, H. Kleinman, I.M. Yakover, A. Gover, “Enhanced super-radiant emission of FEM near waveguide-cutoff and near zero-slippage”, to be published in Nucl. Inst. And Meth.. 2001.
• A. Abramovich, Y. Pinhasi, A. Yahalom, D. Bar-Lev, S. Efimov, A. Gover, “Optimization of power output and study of electron beam energy spread in a Free Electron Laser oscillator”, Nucl. Inst. and Meth. In Phys. Res. A475, pp. 579-582,  (2001).
• M. Tecimer, M. Canter, S. Efimov, A. Gover, J. Sokolowski, “Design and beam transport simulations of a multistage collector for the Israeli EA-FEM”, Nucl. Inst. And Meth..in Phys. Res. A475, pp. 574-578  (2001).

Reports and Other Publications:

• M. Cohen, A. Gover, Effect of Azimuthal and Radial Angular Spread on e-Beam Focusing Characteristics in the Presence of Space Charge Forces, Electron¡ Beam Sources of High Brightness Radiation, ed. H. Freund, SPIE, Vol. 2013, 1994.
• M. Arbel, D. Ben-Haim, M. Cohen, M. Draznin, A. Eichenbaum, A. Gover, H. Kleinman, A. Kugel, Y. Pinhasi, S. Witman, Y. Yakover, Prebunched-Beam Free Electron Maser (FEM), SPIE Proc. , Vol. 2259, pp. 518-521 (1994).
• A. Eichenbaum, M. Cohen, H. Kleinman, D. Ben-Haim, A. Kugel, D. Chairman, I. Ronin, M. Arbel, M. Draznin, Y. Pinhasi, I. M. Yakover, and A. Gover, A Novel Free-Electron Maser as a High Power Microwave Source of Sophisticated Signals, Proceedings of the IEEE Convention, Israel, March, 1995.
• A. Gover, W. van Amersfoot, W. B. Colson, K. Mima, R. Warren, Commentary on the Report of the Committee on Free Electron Lasers and Other Advanced Sources of Light, Report of the Ad-Hoc Committee of the International FEL Executive Committee, Dec. 1994.

Papers Presented at Scientific Meetings:

• A. Gover, Electrostatic FEL, The Israeli FEL Project Workshop at the IPS Meeting, Rehovot, April 15, 1992.
• A. Gover and A. Halperin, Quantum Effects in Smith-Purcell Radiation, 14th International FEL Conference, Köe, Japan, Aug. 23-28, 1992.
• A. Gover, Y. Pinhasi, J. Wachtell, I.M. Yakover, The Israeli Tandem Electrostatic Accelerator FEL - Status Report, 14th International FEL Conference, Köe, Japan, Aug. 23-28, 1992.
• A. Gover, Y. Pinhasi, J. Wachtell, I.M. Yakover, J. Sokolovski, M. Ben Air, B. Mandelbaum, A. Rosenberg, Y. Shiloh, G. Hazak, L. M. Levine, O. Shahal, A. Wolf, Israel tandem electrostatic accelerator FEL-status report, 14th Int'l FEL Conf. , K˜be, Japan, Nucl. Inst. and Meth. in Phys. Res., A331, ABS20 (1993).
• A. Gover, High Power Electrostatic Accelerator FEL- Features and Applications, 1992 International Conference on Advanced and Laser Technologies, Moscow, September 8-11, 1992.
• A. Gover, High Power Electrostatic Accelerator FEL- Features and Application, The 8th meeting on Optical Engineering in Israel, Dec. 14-16, 1992.
• M. Draznin, A. Eichenbaum, A. Gover, Y. Pinhasi, I.M. Yakover, J. Sokolovsky, B. Mandelbaum, A. Rosenberg, Y. Shiloh, G. Hazak, J. M. Levine, O. Shahal, Status Report of the Israeli Tandem-FEL Project, Israel Physical Society, '93 Annual Meeting, Apr. 4, 1993.
• R. Kost, M. Refaeli, A. Kugel, M. Draznin, M. Cohen, and A. Gover, Design, Simulation and Measurements of Wiggler Field and electron Trajectories for FEM Experiment at TAU, Israel Physical Society '93 Annual Meeting, Apr. 4, 1993.
• M. Arbel, D. Ben-Haim, M. Cohen, M. Draznin, A. Eichenbaum, A. Gover, A. Kugel, H. Kleinman, Y. Pinhasi, I.M. Yakover, Prebunched FEM Experiment at TAU, Israel Physical Society '93 Annual Meeting, Apr. 4, 1993.
• A. Gover, An Optical Scheme for Measuring the Quantum Coherence of a Free Electron, 1993, SPIE's Int'l Symposium on Optics, Imaging and Instrumentation, San Diego, CA, July 11-16, 1993.
• M. Draznin, A. Goldring, A. Gover, Y. Pinhasi, J. Wachtell, I.M. Yakover, The Israeli Tandem Electrostatic Accelerator FEL-Status Report, 1993, 15th Int'l FEL Conference, The Hague, The Netherlands, Aug. 23-27, 1993.
• Y. Pinhasi, M. Cohen, A. Gover, Three-Dimensional Codes for Simulating e¡ Beam Transport and FEL Operation Including Space-charge Effects, 1993, 15th Int'l FEL Conference, The Hague, The Netherlands, Aug. 23-27, 1993.
• M. Arbel, D. Ben-Haim, M. Cohen, M. Draznin, A. Eichenbaum, A. Gover, H. Kleinman, A. Kugel, Y. Pinhasi, I.M. Yakover, FEM Experiment with Prebunched Beam at TAU: Status Report, 1993. 15th Int'l FEL Conference, The Hague, The Netherlands, Aug. 23-27, 1993.
• A. Gover, Novel Free Electron Radiation Generators from the Microwave to X rays, Second Technion Symposium on Optoelectronics, Technion, Haifa, Apr. 4, 1994.
• A. Gover, Novel Free Electron Radiation Generators from Microwave to X rays, Meeting of the Israeli Physical Society, Technion, Haifa, May, 1994.
• A. Arensburg, M. Cohen, M. Draznin, A. Eichenman, A. Gover, Y. Pinhasi, V. Shternghartz, I.M. Yakover, J. Sokolowski, B. Mandelbaum, S. Rosenberg, Y. Shiloh, G. Hazak, C. M. Levin, O. Shahal, and M. Shapira, The Israeli Tandem Electrostatic Accelerator FEL-Status Report, 16th Int'l Free Electron Laser Conference, Stanford, CA, Aug. 21-26, 1994. Synopses in Nucl. Inst. and Meth. Phys. Res. , A358 .
• V.L. Granastein, W. Fliflet, W. M. Manheimer, A. Gover, Design of an infrared FEL with an electromagnetic wiggler, 16th Int'l FEL Conference, Stanford, CA, Aug. 21-26, 1994. Synopses in Nucl. Inst. and Meth. Phys. Res. , A358 , ABS 24-25 (1995).
• A. L. Eichenbaum, M. Cohen, H. Kleinman, D. Ben- Haim, A. Kugel, D. Chairman, I. Ronin, M. Arbel, M. Draznin, I.M. Yakover, and A. Gover, A Novel Free-Electron Maser as a High Power Microwave Source of Sophisticated Signals, IEEE Convention, Israel, March, (1995).
• A. Arensburg, A. Abramovich, D. Chairman, M. Cohen, M. Draznin, A. Gover, H. Kleinman, Y. Pinhasi, J.S. Sokolovski, V. Sterngratz, I.M. Yakover, L.A. Levin, O.Shahal, A. Rosenberg, J. Shiloh, I, Schnitzer, Diagnostics and Electron-Optics of a High Current Electron Beam in the Tandem Free Electron Laser - Status Report, 17th Intl Free Electron Laser Conference, NY, NY, Aug. 21-25, 1995.
• Y. Pinhasi, I.M. Yakover, A.Gover, Electrostatic - Accelerator Free Electron Lasers for Power Beaming, 17 th Intl Free Electron Laser Conference, NY, NY, Aug. 21- 25, 1995.
• A. Gover, Y. Zehavi, E. Fisher, Applications of Electrostatic FEL to Material Processing in the mm-FIR Regime, (invited), 2nd International Conference on Photo - Excited Processes and Applications, Jerusalem, Sept. 17-21, 1995.

Patents:

• A. Gover, R. Kastner, High Altitude Platform Cellular Communication System. Patent pending (1995).

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