Passive and active plasma deceleration for the compact disposal of electron beams

Journal Article · Sat Aug 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4928379· OSTI ID:22490078

Schroeder, C. B.; Vay, J. -L.; Geddes, C. G. R.; Benedetti, C.; Esarey, E.; Leemans, W. P. ^[1]

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1. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

Plasma-based decelerating schemes are investigated as compact alternatives for the disposal of high-energy beams (beam dumps). Analytical solutions for the energy loss of electron beams propagating in passive and active (laser-driven) schemes are derived. These solutions, along with numerical modeling, are used to investigate the evolution of the electron distribution, including energy chirp and total beam energy. In the active beam dump scheme, a laser-driver allows a more homogeneous beam energy extraction and drastically reduces the energy chirp observed in the passive scheme. These concepts could benefit applications requiring overall compactness, such as transportable light sources, or facilities operating at high beam power.

• OSTI ID: 22490078
• Journal Information: Physics of Plasmas, Vol. 22, Issue 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
ANALYTICAL SOLUTION
BEAM DUMPS
BEAM EXTRACTION
ELECTRON BEAMS
ENERGY LOSSES
LASERS
LIGHT SOURCES
PLASMA