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PT13 | An X-Band Cavity for a High Precision Beam Position Monitor
Work supported by Dept. of Energy Contract DE-AC03-76F00515 |
pick-up, diagnostics, instrumentation, NLC | 196 | ||
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The next generation of accelerators will require increasingly precise
control of beam position. For example designs for the next linear
collider require beam-position monitors (BPMs) with 200 nm resolution.
The accelerator designs also place difficult requirements on accuracy and
stability. To meet these requirements a cavity BPM operating at 11.424
GHz was designed. The BPM consists of two cavities: an xy-cavity tuned to
the dipole mode and a phase cavity tuned to the monopole mode. The
xy-cavity uses a novel coupling scheme that (in principal) has zero
coupling to the monopole mode. This report will present the mechanical
design, simulations, and test results of a prototype BPM. In addition BPM
designs with even higher precision will be discussed.
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