Physical Review Special Topics. Accelerators and Beams (Jun 1998)

First observation of luminosity-driven extraction using channeling with a bent crystal

  • R. A. Carrigan, Jr.,
  • D. Chen,
  • G. Jackson,
  • N. Mokhov,
  • C. T. Murphy,
  • S. I. Baker,
  • S. A. Bogacz,
  • D. Cline,
  • S. Ramachandran,
  • J. Rhoades,
  • J. Rosenzweig,
  • A. Aseev,
  • V. Biryukov,
  • A. Taratin,
  • J. A. Ellison,
  • A. Khanzadeev,
  • Y. Prokofieva,
  • V. Samsonov,
  • G. Solodov,
  • B. Newberger,
  • E. Tsyganov,
  • H.-J. Shih,
  • W. Gabella,
  • B. Cox,
  • V. Golovatyuk,
  • A. McManus

DOI
https://doi.org/10.1103/PhysRevSTAB.1.022801
Journal volume & issue
Vol. 1, no. 2
p. 022801

Abstract

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Luminosity-driven channeling extraction has been observed for the first time using a 900 GeV circulating proton beam at the superconducting Fermilab Tevatron. The extraction efficiency was found to be about 30%. A 150 kHz beam was obtained during luminosity-driven extraction with a tolerable background rate at the collider experiments. A 900 kHz beam was obtained when the background limits were doubled. This is the highest energy at which channeling has been observed.