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Phys. Rev. ST Accel. Beams 5, 043501 (2002) [24 pages]

Beam extraction studies at 900 GeV using a channeling crystal

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R. A. Carrigan et al.
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Received 4 October 1999; revised 26 February 2002; published 30 April 2002

Luminosity-driven channeling extraction has been observed for the first time in a 900 GeV study at the Fermilab Tevatron. This experiment, Fermilab E853, demonstrated that useful TeV level beams can be extracted from a superconducting accelerator during high luminosity collider operations without unduly affecting the background at the collider detectors. Multipass extraction was found to increase the efficiency of the process significantly. The beam extraction efficiency was about 25%. Studies of time dependent effects found that the turn-to-turn structure was governed mainly by accelerator beam dynamics. Based on the results of this experiment, it is feasible to construct a parasitic 5–10 MHz proton beam from the Tevatron collider.


©2002 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevSTAB.5.043501
DOI: 10.1103/PhysRevSTAB.5.043501
PACS: 29.27.Ac, 41.85.Ar, 61.85.+P

* Present address: Lucent Technologies, Holmdel, NJ 07733.
† Deceased.
‡ Present address: Thomas Jefferson National Accelerator Facility, Newport News, VA 23606.
§ Present address: University of Houston, Houston, TX 77204.
** Present address: Winstead Sechrest & Minick, P.C., Austin, TX 78701.
†† Present address: Affiliated Computer Services, Inc., Dallas, TX 75204.
‡‡ Present address: University and INFN of Lecce, Lecce, Italy.
Present address: Lucent Technologies, Holmdel, NJ 07733.

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