Multi-Cell Reduced-Beta Elliptical Cavities for a Proton Linac
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Description
A superconducting cavity has been designed for acceleration of particles traveling at 81% the speed of light ({beta} = 0.81). The application of interest is an 8 GeV proton linac proposed for a Fermilab upgrade; at present, the cavity is to be used from 420 MeV to 1.3 GeV. The cavity is similar to the 805 MHz high-{beta} cavity developed for the Spallation Neutron Source Linac, but the resonant frequency (1.3 GHz) and beam tube diameter (78 mm) are the same as for the {beta} = 1 cavities developed for the TESLA Test Facility. Four single-cell prototype cavities have been …
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Fermi National Accelerator Laboratory (FNAL), Batavia, IL
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Batavia, Illinois
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Description
A superconducting cavity has been designed for acceleration of particles traveling at 81% the speed of light ({beta} = 0.81). The application of interest is an 8 GeV proton linac proposed for a Fermilab upgrade; at present, the cavity is to be used from 420 MeV to 1.3 GeV. The cavity is similar to the 805 MHz high-{beta} cavity developed for the Spallation Neutron Source Linac, but the resonant frequency (1.3 GHz) and beam tube diameter (78 mm) are the same as for the {beta} = 1 cavities developed for the TESLA Test Facility. Four single-cell prototype cavities have been fabricated and tested. Two multi-cell prototypes have also been fabricated, but they have not yet been tested. The original concept was for an 8-cell cavity, but the final design and prototyping was done for 7-cells. An 11-cell cavity was proposed recently to allow the cryomodules for the {beta} = 0.81 cavity and downstream 9-cell {beta} = 1 cavities to be identical. The choice of number of cells per cavity affects the linac design in several ways. The impact of the number of cells in the 8 GeV linac design will be explored in this paper. Beam dynamics simulations from the ANL code TRACK will be presented.
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Carneiro, J. -P.; Gonin, I.; Solyak, N.; Yakovlev, V.; Mustapha, B.; Ostroumov, P. N. et al.Multi-Cell Reduced-Beta Elliptical Cavities for a Proton Linac,
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May 1, 2009;
Batavia, Illinois.
(https://digital.library.unt.edu/ark:/67531/metadc930229/:
accessed March 18, 2024),
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