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| WEPLT158 |
Direct Measurement of the Resistive Wakefield in Tapered Collimators
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2209 |
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- P. Tenenbaum
SLAC, Menlo Park, California
- D. Onoprienko
Brunel University, Middlesex
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The transverse wakefield component arising from surface resistivity is expected to play a major role in the beam dynamics of future linear colliders. We report on a series of experiments in which the resistive wakefield was measured in a series of tapered collimators, using the Collimator Wakefield beam test facility at SLAC. In order to separate the contributions of geometric and resistive wakefields, two sets of collimators with identical geometries but different resistivities were measured. The results are in agreement with the theoretical prediction for the high-resistivity (titanium) collimators, but in the case of low-resistivity (copper) collimators the resistive deflections appear to be substantially larger than predicted.
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