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Transmission of Megawatt Relativistic Electron Beams through Millimeter Apertures

Author(s)
Alarcon, R.; Balascuta, S.; Benson, S. V.; Boyce, J. R.; Douglas, D.; Evtushenko, P.; Kalantarians, N.; Legg, R.; Neil, G. R.; Tennant, C.; Williams, G. P.; Zhang, S.; Bertozzi, William; Ou, Longwu; Schmookler, Barak Abraham; Cowan, Ray F; Fisher, Peter H; Ihloff, Ernest E; Milner, Richard G; Tschalar, Christoph; Kelleher, Aidan; ... Show more Show less
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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.
Date issued
2013-10
URI
http://hdl.handle.net/1721.1/84933
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Alarcon, R., S. Balascuta, S. V. Benson, W. Bertozzi, J. R. Boyce, R. Cowan, D. Douglas, et al. “Transmission of Megawatt Relativistic Electron Beams through Millimeter Apertures.” Physical Review Letters 111, no. 16 (October 2013). © 2013 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114

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