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| WPAT088 |
Performance of TESLA Cavities After Fabrication and Preparation in Industry
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4221 |
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- M. Pekeler, S. Bauer, P. vom Stein
ACCEL, Bergisch Gladbach
- W. Anders, J. Knobloch
BESSY GmbH, Berlin
- W.-D. Müller
DESY, Hamburg
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In order to demonstrate cw operation of TESLA cavities in linear accelerators driving FEL applications, two TESLA cavities were manufactured and prepared by ACCEL for BESSY. After production, both cavities were prepared for vertical test at ACCEL's premises using state of the art chemical polishing and high pressure water rinsing techniques. The cavities were tested in DESY's vertical RF test installation. Accelerating gradients close to 25 MV/m were reached. One cavity was completed with a helium vessel modified for cw operation and prepared with chemical polishing, high pressure water rinsing, and assembled with the required High Power Coupler at ACCEL. The fully dressed cavity was then shipped under vacuum to BESSY and tested in the horizontal cryostat HoBiCaT. Horizontal RF test results will be presented and compared with the vertical test results.
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