A Hilbert-Vlasov code for the study of high-frequency plasma beatwave accelerator

Journal Article · Mon Apr 01 00:00:00 EST 1996 · IEEE Transactions on Plasma Science

DOI:https://doi.org/10.1109/27.510001· OSTI ID:264373

Ghizzo, A; Bertrand, P; Begue, M L ^[1]; Johnston, T W ^[2]; Shoucri, M ^[3]

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1. Universite Henri Poincare Nancy-I (France)
2. I.N.R.S. Energie et Materiaux, Varennes, Quebec (Canada)
3. Centre Canadien de Fusion Magnetique, Varennes, Quebec (Canada)

High-frequency beatwave simulations relevant to the University of California at Los Angeles (UCLA) experiment with relativistic eulerian hybrid Vlasov code are presented. These Hilbert-Vlasov simulations revealed a rich variety of phenomena associated with the fast particle dynamics induced by beatwave experiment for a high ratio of driver frequency to plasma frequency {omega}{sub pump}/{omega}{sub pump} {approx} 33. The present model allows one to extend detailed modeling to frequency ratios greater than the current practical maximum of 10 or so, for Vlasov or particle-in-cell (PIC) codes, by replacing the Maxwell equations by mode equations for the electromagnetic Vlasov code. Numerical results, including beat frequency chirping (i.e., pump frequency linearly decreasing with time), show that the amplitude limit due to relativistic detuning can be enhanced with accelerated particles up to the ultrarelativistic energies with a high-acceleration gradient of more than 25 GeV/m.

• OSTI ID: 264373
• Journal Information: IEEE Transactions on Plasma Science, Vol. 24, Issue 2; Other Information: PBD: Apr 1996
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAT WAVE ACCELERATORS
COMPUTERIZED SIMULATION
MATHEMATICAL MODELS
LANGMUIR FREQUENCY
BEAM DYNAMICS
THEORETICAL DATA