Thermal effects in plasma-based accelerators

Journal Article · Tue May 15 00:00:00 EDT 2007 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2714022· OSTI ID:20975086

Esarey, E; Leemans, W P ^[1]; Schroeder, C B; Geddes, C G. R. ^[1]; Cormier-Michel, E ^[2]; Shadwick, B A ^[3]

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1. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
2. Department of Physics, University of Nevada, Reno, Nevada 89557 (United States)
3. Institute for Advanced Physics, Conifer, Colorado 80433 (United States)

Finite plasma temperature can modify the structure of the wake field, reduce the wave-breaking field, and lead to self-trapped electrons, which can degrade the electron bunch quality in a plasma-based accelerator. A relativistic warm fluid theory is used to describe the plasma temperature evolution and alterations to the structure of a nonlinear periodic wave exited in a warm plasma. The trapping threshold for a plasma electron and the fraction of electrons trapped from a thermal distribution are examined using a single-particle model. Numerical artifacts in particle-in-cell models that can mimic the physics associated with finite momentum spread are discussed.

• OSTI ID: 20975086
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 14; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATORS
ELECTRON TEMPERATURE
ION TEMPERATURE
NONLINEAR PROBLEMS
PERIODICITY
PLASMA GUNS
PLASMA SIMULATION
RELATIVISTIC PLASMA
RELATIVISTIC RANGE
TEMPERATURE DEPENDENCE
TRAPPED ELECTRONS