Transmission of megawatt relativistic electron beams through millimeter apertures

Ricardo Alarcon, S. Balascuta, S. V. Benson, W. Bertozzi, J. R. Boyce, R. Cowan, D. Douglas, P. Evtushenko, P. Fisher, E. Ihloff, N. Kalantarians, A. Kelleher, R. Legg, R. G. Milner, G. R. Neil, L. Ou, B. Schmookler, C. Tennant, C. Tschalär, G. P. WilliamsS. Zhang

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7 Scopus citations

Abstract

High-power, relativistic electron beams from energy-recovering linacs have great potential to realize new experimental paradigms for pioneering innovation in fundamental and applied research. A major design consideration for this new generation of experimental capabilities is the understanding of the halo associated with these bright, intense beams. In this Letter, we report on measurements performed using the 100 MeV, 430 kW cw electron beam from the energy-recovering linac at the Jefferson Laboratory's Free Electron Laser facility as it traversed a set of small apertures in a 127 mm long aluminum block. Thermal measurements of the block together with neutron measurements near the beam-target interaction point yielded a consistent understanding of the beam losses. These were determined to be 3 ppm through a 2 mm diameter aperture and were maintained during a 7 h continuous run.

Original languageEnglish (US)
Article number164801
JournalPhysical Review Letters
Volume111
Issue number16
DOIs
StatePublished - Oct 16 2013

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Alarcon, R., Balascuta, S., Benson, S. V., Bertozzi, W., Boyce, J. R., Cowan, R., Douglas, D., Evtushenko, P., Fisher, P., Ihloff, E., Kalantarians, N., Kelleher, A., Legg, R., Milner, R. G., Neil, G. R., Ou, L., Schmookler, B., Tennant, C., Tschalär, C., ... Zhang, S. (2013). Transmission of megawatt relativistic electron beams through millimeter apertures. Physical Review Letters, 111(16), [164801]. https://doi.org/10.1103/PhysRevLett.111.164801