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XX International Linac Conference

MOA07 (Poster)

Presenter: Peter Tenenbaum (SLAC)
Status: Complete
FullText: ps.gz or pdf

Quadrupole Centering and Beam Steering in the Next Linear Collider Main Linacs

P. Tenenbaum, T.O. Raubenheimer (SLAC)

Accurate measurement of quadrupole-to-BPM center offsets and use of this information in an auto-steering algorithm are two essential components of emittance preservation in the Next Linear Collider main linac. We present the results of an analytic/simulation study of possible statistical and systematic limitations on the measurement of quad-BPM center offsets. These results are incorporated in a simulation study of a potential main linac steering algorithm which relies entirely on remote-controlled magnet and RF-structure positioning devices to minimize emittance dilution. The effects of ground motion during the alignment process are also considered.

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