Linear Collider Collaboration Tech Notes Surface Preparation on RF Breakdown Performance in NLCTA Accelerating Structures
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چکیده
In an effor was begun on charac material that was use roughness correspon respectively. These v type of machined stru Linear Collider Collaboration Tech Notes Surface Preparation on RF Breakdown Performance in NLCTA Accelerating Structures R. E. Kirby, F. Le Pimpec, F. Marcelja, C. Pearson Stanford Linear Accelerator Center Stanford University Menlo Park, California t to locate the cause(s) of high electric-field breakdown in X-band accelerating structures, a systematic study terizing the effect of etching time on surface roughness, using OFE copper witness coupons made of the same d for structures and machined in identical fashion to those structures. It was found that the minimum surface ded to 45 and 5 second etching times on conventional and single=crystal, diamond machined surfaces, alues are essentially identical, within error, to the times used to obtain the best breakdown results for either cture. Impact of Surface Preparation on RF Breakdown Performance in NLCTA Accelerating Structures R.E. Kirby, F. Le Pimpec, F. Marcelja, C. Pearson SLAC, 2575 Sand Hill Road Menlo Park, CA 94025
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