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Choice of parameters for linear colliders in multi-bunch mode [electronic resource].

Published
Upton, N.Y. : Brookhaven National Laboratory, 1987.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 30 : digital, PDF file
Additional Creators
Brookhaven National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The energy efficiency of a linear collider in multi-bunch mode is calculated for the case that the bunches in each of the two interacting beams are identical in all interaction points, a configuration which can be realized by taking advantage of the beam-beam effect between beams of opposite electric charge. The maximization of the efficiency is discussed, the maximum appears to increase nearly linearly with beam brightness and accelerating gradient, and about quadratically with the length of the ir. The optimum operating frequency for the linacs increases also, while the pulse repetition rate and the beam current needed for fixed luminosity, decrease. The increasing brightness and the decreasing current needed for higher efficiency lead to smaller transverse spotsizes in the crossing points; this imposes tighter tolerances on the relative transverse coordinates of the two beam-axes. Pillbox or similar resonators, excited in the TM01 mode, may be preferable to quadrupoles for transverse focusing, at the high frequencies and gradients that seem desirable, particularly in the final focus. 4 refs., 7 figs.
Report Numbers
E 1.99:bnl-40268
E 1.99: conf-8706147-8
conf-8706147-8
bnl-40268
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
01/01/1987.
"bnl-40268"
" conf-8706147-8"
"DE87013648"
Workshop on new developments in particle acceleration techniques, Orsay, France, 29 Jun 1987.
Claus, J.
Funding Information
AC02-76CH00016
View MARC record | catkey: 14697197