Beams Document 4475-v1

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Halo scraping and collimation of high-intensity hadron beams with hollow electron lenses

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Giulio Stancari
Updated by:
Giulio Stancari
Document Created:
05 Nov 2013, 04:55
Contents Revised:
05 Nov 2013, 04:55
Metadata Revised:
05 Nov 2013, 05:00
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Hollow electron lenses are a novel tool for controlling the halo of high-power hadron beams in circular machines. In a hollow electron beam collimator, a magnetically confined, pulsed, low-energy electron beam with a hollow current-density profile overlaps with the circulating beam over a short section of the ring. The concept was tested experimentally at the Fermilab Tevatron collider. Within the US LHC Accelerator Research Program (LARP) and the European HiLumi LHC Design Study, we are investigating the application of this technique to the Large Hadron Collider at CERN. After a discussion of the physics and technology of hollow electron beam collimation, the seminar will conclude with a brief outlook on new opportunities for accelerator research with the electron linac and nonlinear integrable ring at Fermilab's Advanced Superconducting Test Accelerator.
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  • Slides (Stancari_GSI_20131031.pdf, 16.7 MB)
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Colloquium given at GSI, Darmstadt, Germany on October 31, 2013.
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