Phys. Rev. ST Accel. Beams 10, 120101 (2007) [4 pages]Application of International Linear Collider superconducting cavities for acceleration of protons |
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P. N. Ostroumov *
Physics Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439, USA
V. N. Aseev and I. V. Gonin
Fermilab, P.O. Box 500, Batavia, Illinois 60510, USA
B. Rusnak
Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
Received 15 August 2007; published 14 December 2007
Beam acceleration in the International Linear Collider (ILC) will be provided by 9-cell 1300 MHz superconducting (SC) cavities. The cavities are designed for effective acceleration of charged particles moving with the speed of light and are operated on π-mode to provide a maximum accelerating gradient. A significant research and development effort has been devoted to develop ILC SC technology and its rf system which resulted in excellent performance of ILC cavities. Therefore, the proposed 8-GeV proton driver in Fermilab is based on ILC cavities above ∼1.2 GeV. The efficiency of proton beam acceleration by ILC cavities drops fast for lower velocities and it was proposed to develop squeezed ILC-type (S-ILC) cavities operating at 1300 MHz and designed for βG=0.81, geometrical beta, to accelerate protons or H- from ∼420 MeV to 1.2 GeV. This paper discusses the possibility of avoiding the development of new βG=0.81 cavities by operating ILC cavities on 8 / 9π-mode of standing wave oscillations.
©2007 The American Physical Society
URL: http://link.aps.org/abstract/PRSTAB/v10/e120101
DOI: 10.1103/PhysRevSTAB.10.120101
PACS: 29.17.+w, 41.20.−q, 29.27.−a, 84.40.−x
* Corresponding author. ostroumov@phy.anl.gov
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