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15Complex Systems of Charged Particles and their Interactions with Electromagnetic Radiation 2018
NUMERICAL CALCULATIONS OF TRANSVERSE ELECTRON ACCELERATION AT THE FIELD OF TERAHERTZ RADIATION
M.Yu.Romanovsky1, O.B.Shiryaev23
1Federal Agency for Scientific Organizations, Leninsky prosp. 32A, 119991 Moscow, Russia;
Moscow Technological University (MIREA), prosp. Vernadskogo 78, 119454 Moscow, Russia;
2A.M.Prokhorov General Physics Institute of RAS, Vavilov str., 38, 119991 Moscow, Russia
3Medicobologic Faculy, N.I. Pirogov Russian National Research Medical University, Ostovityanova 1,
117997Moscow, Russia 1e-mail: slon@kapella.gpi.ru
We study transverse acceleration of an electron introduced to a terahertz pulse along the direction of the electromagnetic field wave vector in the presence of an external permanent magnetic field. Former estimations of the possible increment of the electron energy in permanent fields shown that at fields available presently, the rate of energy gain by an electron in a THz pulse will be above GeV m-1, and at higher fields, it will be well above this limit of nonlinear acceleration methods [1, 2]. The general charge of particles accelerated simultaneously far exceeds the value of tens of picocoulombs.
Numerical calculations for real terahertz pulses shown that the energy gain is 3-5 times less than it was calculated for permanent fields of the same amplitude. The developed acceleration scheme may be employed (in addition to the electron accelerator itself) in a terahertz synchrotron, possible parameters of which are estimated.
The study was partially supported by the Extreme Fields and Their Applications program of the presidium of the Russian Academy of Science.
1. Leemans W.P., Gonsalves A.J., et al. Phys. Rev. Lett., 113, 245002 (2014).
2. Pukhov A., Meyer-ter-Vehn J. Appl. Phys. B, 74, 355 (2002).
