Electric lamp and discharge devices: systems – High energy particle accelerator tube – With injection or extraction means
Patent
1995-02-06
1997-06-10
Pascal, Robert
Electric lamp and discharge devices: systems
High energy particle accelerator tube
With injection or extraction means
315500, 315505, 31511181, 359342, H01J 2300
Patent
active
056379668
ABSTRACT:
The invention provides a method and apparatus for generating large amplitude nonlinear plasma waves, driven by an optimized train of independently adjustable, intense laser pulses. In the method, optimal pulse widths, interpulse spacing, and intensity profiles of each pulse are determined for each pulse in a series of pulses. A resonant region of the plasma wave phase space is found where the plasma wave is driven most efficiently by the laser pulses. The accelerator system of the invention comprises several parts: the laser system, with its pulse-shaping subsystem; the electron gun system, also called beam source, which preferably comprises photo cathode electron source and RF-LINAC accelerator; electron photo-cathode triggering system; the electron diagnostics; and the feedback system between the electron diagnostics and the laser system. The system also includes plasma source including vacuum chamber, magnetic lens, and magnetic field means. The laser system produces a train of pulses that has been optimized to maximize the axial electric field amplitude of the plasma wave, and thus the electron acceleration, using the method of the invention.
REFERENCES:
patent: 4655547 (1987-04-01), Heritage et al.
patent: 4764930 (1988-08-01), Bille et al.
patent: 4875213 (1989-10-01), Lo
patent: 4910746 (1990-03-01), Nicholson
patent: 4928316 (1990-05-01), Heritage et al.
patent: 4937532 (1990-06-01), Dawson et al.
patent: 5235606 (1993-08-01), Mourou et al.
patent: 5353291 (1994-10-01), Sprangle et al.
T. Tajima and J.M. Dawson, "Laser Beat Accelerator", IEEE Transactions on Nuclear Science, vol. NS-28, No. 3, 3416-3417, Jun. 1981.
L.M. Gorbunov and V.I. Kirsanov, "Excitation of Plasma Waves by an Electromagnetic Wave Packet", Sov. Phys. JETP, vol. 66, No. 2, 290-294, Aug. 1987.
P. Sprangle, E. Esarey, A. Ting, and G. Joyce, "Laser Wakefield Acceleration and Relativistic Optical Guiding", Appl. Phys. Lett., vol. 53, No. 22, 2146-2148, Nov. 28, 1988.
T. Tajima and J.M. Dawson, "An Electron Accelerator Using a Laser", IEEE Transactions on Nuclear Science, vol. NS-26, No. 3, 4188-4189, Jun. 1979.
T. Tajima and J.M. Dawson, "Laser Electron Accelerator", Physical Review Letters, vol. 43, No. 4, 267-270, Jul. 23, 1979.
S.V. Bulanov, V.I. Kirsanov, and A.S. Sakharov, "Excitation of Ultrarelativistic Plasma Waves by Pulse of Electromagnetic Radiation", American Institute of Physics JETP Lett., Vo. 50, No. 4, 198-201, Aug. 25, 1989.
P. Sprangle, E. Esarey, and A. Ting, "Nonlinear Interaction of Intense Laser Pulses in Plasmas", Physical Review A, vol. 41, No. 8, 4463-4469, Apr. 15, 1990.
J. Squier, F. Salin, and G. Mourou, "100-fs Pulse Generation and Amplification in Ti:A1203", Otics Letters, vol. 16, No. 6, 324-326, Mar. 1991.
V.I. Berezhiani and I.G. Murusidze, "Interaction of Highly Relativistic Short Laser Pulses with Plasmas and Nonlinear Wakefield Generation", Physica Scripta 45, 87-90, 1991.
J. Squier and G. Mourou, "Tunable SolidState Lasers Create Ultrashort Pulses", Laser Focus World, Jun. 1992.
D.H. Reitze, A.M. Weiner, and D.E. Leaird, "Shaping of Wide Bandwidth 20 Femtosecond Optical Pulses", Appl. Phys. Lett., vol. 61, No. 11, 1260-1262, Sep. 14, 1992.
D. Umstadter, E. Esarey, J. Kim, "Nonlinear Plasma Waves Resonantly Driven by Optimized Laser Pulse Trains", Physical Review Letters, vol. 72, No. 8, 1224-1227, Feb. 21, 1994.
H.C. Kapteyn and M.M. Murnane, "Femtosecond Lasers: The Next Generation", Optics & Photonics News, 20-28, Mar. 1994.
D. Umstadter, J. Kim, E. Esarey, E. Dodd, and T. Neubert, "Resonantly Laser-Driven Plasma Waves for Electron Acceleration", Physical Review E, vol. 51, No. 4, 3484-3497, Apr. 1995.
T. Tajima and J.M. Dawson , "Laser Accelerator by Plasma Waves", Unpublished.
Esarey Eric
Kim Joon K.
Umstadter Donald
Pascal Robert
Shingleton Michael
The Regents of the University of Michigan
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