Generation of gigawatt level beat waves

Guolin Li; Ting Shu; Jun Zhang; Jianhua Yang; Chengwei Yuan
June 2010
Applied Physics Letters;6/7/2010, Vol. 96 Issue 23, p234102
Academic Journal
The initial experimental results of generating gigawatt level beat waves with two microwave sources are presented. The detailed measures for enhancing the power handling capacities of the applied devices are explained. In the experiments, the operation frequencies of the microwave sources are 9.41 GHz and 9.59 GHz, respectively. The microwave sources are driven by a single accelerator capable of producing dual electron beams to make sure that they are operating simultaneously. The beat frequencies, measured by the oscilloscope directly, are about 180 MHz, and the peak powers of the pulsed beat waves are about 4.3 GW with durations of about 40 ns.


Related Articles

  • Effect of transverse nonuniformity of the rf field on the efficiency of microwave sources driven by linear electron beams. Nusinovich, G. S.; Sinitsyn, O. V. // Physics of Plasmas;Sep2005, Vol. 12 Issue 9, p093107 

    This paper contains a simple analytical theory that allows one to evaluate the effect of transverse nonuniformity of the rf field on the interaction efficiency in various microwave sources driven by linear electron beams. The theory is, first, applied to the systems where the beams of...

  • Application of Petawatt pARametric Laser (PEARL)—Laser Wakefied Acceleration. Ginzburg, V. N.; Katin, E. V.; Khazanov, E. A.; Kirsanov, A. V.; Lozhkarev, V. V.; Luchinin, G. A.; Mal'shakov, A. N.; Martyanov, M. A.; Palashov, O. V.; Poteomkin, A. K.; Sergeev, A. M.; Shaykin, A. A.; Soloviev, A. A.; Starodubtsev, M. V.; Yakovlev, I. V.; Zelenogorsky, V. V. // AIP Conference Proceedings;4/16/2010, Vol. 1228 Issue 1, p71 

    In this paper we discuss laser weak field acceleration experiments made at the PEtawatt pARametric Laser (PEARL). Using free 2 mm gas jet without preplasma we generated electron beam with energy up to 200 MeV, angular divergence 0.2 degree, and charge 10 pC. The special attention is paid for...

  • Critical emission of two-dimensional electrons from a dielectric into vacuum induced by a nanosecond dense electron beam injected in the specimen. Vaisburd, D. I.; Evdokimov, K. E. // Russian Physics Journal;Aug2008, Vol. 51 Issue 8, p844 

    A theoretical model has been developed which describes the critical electron emission from a dielectric that is induced by an injected nanosecond-duration electron beam of moderate or high density. A numerical realization of the model has been constructed which describes the principal properties...

  • Electric Field Influence on Secondary Emission. Richterová, I.; Pavlůu, J.; Němeček, Z.; Šafránková, J.; Jeřáb, M. // AIP Conference Proceedings;2005, Vol. 799 Issue 1, p395 

    The paper is devoted to a detail study of charging and discharging processes of 5 μm melamine formaldehyde resin grains that could partly simulate porous aggregates observed in the space. We present unusual charging properties of these grains influenced by both low- and high-energy electron...

  • Analysis of super-radiant Smith-Purcell emission. Flory, Curt A. // Journal of Applied Physics;3/1/2006, Vol. 99 Issue 5, p054903 

    Smith-Purcell emission is studied for a system with no incident field or electromagnetic feedback mechanism other than what is provided by the grating itself. A model is developed that analyzes the interaction between the electron beam and the grating electromagnetic modes. The system of...

  • Photoemission from metals and cesiated surfaces. Jensen, Kevin L.; Moody, N. A.; Feldman, D. W.; Montgomery, E. J.; O’Shea, P. G. // Journal of Applied Physics;Oct2007, Vol. 102 Issue 7, p074902 

    A model of photoemission from coated surfaces is significantly modified by first providing a better account of the electron scattering relaxation time that is used throughout the theory, and second by implementing a distribution function based approach (“Moments”) to the emission...

  • Critical effects of substrate terraces and steps morphology on the growth mode of epitaxial SrRuO3 films. Sánchez, F.; Herranz, G.; Infante, I. C.; Fontcuberta, J.; Garcáa-Cuenca, M. V.; Ferrater, C.; Varela, M. // Applied Physics Letters;9/13/2004, Vol. 85 Issue 11, p1981 

    We report on the controlled fabrication of the arrays of self-organized fingerlike nanostructures of SrRuO3 that form on SrTiO3(001). We show that the size (width and height) of the one-dimensional nanometric units can be tuned or suppressed by using appropriate substrate vicinality θv and...

  • Two-Pulse Generation of High-Current Relativistic Electron Beams and Their Transportation in the Gaseous Medium of a Plasmochemical Reactor. Kondrat’ev, N. A.; Smetanin, V. I. // Technical Physics;Jul2003, Vol. 48 Issue 7, p846 

    Experimental results on two-pulse generation and transportation of high-current relativistic electron beams (REBs) through the gaseous medium of a plasmochemical reactor (PR) are presented. The generation of two consecutive high-current REB pulses with a duration of 60 ns was achieved at the...

  • Neutron (3He) Spin Structure Functions at Low Q2. Sulkosky, Vincent A. // AIP Conference Proceedings;7/27/2009, Vol. 1155 Issue 1, p93 

    Experiment E97-110 was performed at the Thomas Jefferson National Accelerator Facility to provide a precise measurement of the 3He spin structure functions at low Q2 from 0.02 to 0.3 [GeV/c]2. A longitudinally-polarized electron beam was scattered from a longitudinally or transversely polarized...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics