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This paper demonstrates the possibility of quasi-steadystate transport of a finite-length ion beam through a chamber filled with plasma of arbitrary density. We conclude that, in principle, partially-current-neutralized equilibria exist in the reference frame moving with the ion charge bunch for arbitrary ratio of beam density to plasma density. The… (More)

Two-stream instabilities in intense charged particle beams, described self-consistently by the nonlinear Vlasov-Maxwell equations, are studied using a 3D multispecies perturbative particle simulation method. The newly developed beam equilibrium, stability, and transport (BEST) code is used to simulate the linear and nonlinear properties of the… (More)

Background plasma can be used as an effective neutralization scheme to transport and compress intense ion beam pulses, and the application of a solenoidal magnetic field allows additional control and focusing of the beam pulse. Ion beam pulse propagation in a background plasma immersed in an applied solenoidal magnetic field has been studied both… (More)

- Igor D. Kaganovich, Edward A. Startsev, +8 authors Yong Peng
- 2005

- QUADRUPOLE LATTICE, Edward A. Startsev, Ronald C . Davidson
- 2010

The transverse dynamics of an intense charged particle beam propagating through a periodic quadrupole focusing lattice is described by the nonlinear Vlasov-Maxwell system of equations. To find matched-beam quasi-equilibrium distribution functions one needs to determine a dynamical invariant for the beam particles moving in the combined external and… (More)

The Paul Trap Simulator Experiment (PTSX) is a compact laboratory facility whose purpose is to simulate the nonlinear dynamics of intense charged particle beam propagation over large distances through an alternating-gradient magnetic transport system. The PTSX device is a 200 cm long, 20 cm diameter cylindrical Paul trap in which a 400 V, 100 kHz signal… (More)

- Mikhail A. Dorf, Igor D. Kaganovich, Edward A. Startsev, Ronald C . Davidson
- Physical review letters
- 2009

It is shown that the application of a weak solenoidal magnetic field along the direction of ion beam propagation through a neutralizing background plasma can significantly enhance the beam self-focusing for the case where the beam radius is small compared to the collisionless electron skin depth. The enhanced focusing is provided by a strong radial… (More)

- Igor D. Kaganovich, Scott Massidda, Edward A. Startsev, Ronald C . Davidson, Jean-Luc Vay, Alex Friedman
- 2012

Neutralized drift compression offers an effective means for particle beam pulse compression and current amplification. In neutralized drift compression, a linear longitudinal velocity tilt (head-to-tail gradient) is applied to the non-relativistic beam pulse, so that the beam pulse compresses as it drifts in the focusing section. The beam current can… (More)

- Colin J. McKinstrie, Edward A. Startsev
- Physical review. E, Statistical physics, plasmas…
- 1999

The simultaneous forward and backward stimulated Brillouin scattering (SBS) of crossed laser beams is studied in detail. Analytical solutions are obtained for the linearized equations governing the transient phase of the instability and the nonlinear equations governing the steady state. These solutions show that backward SBS dominates the initial evolution… (More)

Abstract Stripping cross sections in nitrogen have been calculated using the classical trajectory approximation and the Born approximation of quantum mechanics for the outer shell electrons of 3.2GeV I− and Cs ions. A large difference in cross section, up to a factor of six, calculated in quantum mechanics and classical mechanics, has been obtained. Because… (More)