Control of focusing forces and emittances in plasma-based accelerators using near-hollow plasma channels

Journal Article · Tue Aug 06 00:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4817799· OSTI ID:1165377

Schroeder, Carl; Esarey, Eric; Benedetti, Carlo; Leemans, Wim

A near-hollow plasma channel, where the plasma density in the channel is much less than the plasma density in the walls, is proposed to provide independent control over the focusing and accelerating forces in a plasma accelerator. In this geometry the low density in the channel contributes to the focusing forces, while the accelerating fields are determined by the high density in the channel walls. The channel also provides guiding for intense laser pulses used for wakefield excitation. Both electron and positron beams can be accelerated in a nearly symmetric fashion. Near-hollow plasma channels can effectively mitigate emittance growth due to Coulomb scattering for high energy physics applications.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 1165377
• Report Number(s): LBNL-6359E
• Journal Information: Physics of Plasmas, Vol. 20, Issue 8; Related Information: Journal Publication Date: August 2013
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY