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Title |
Page |
| WEPC01 |
Beam Based Measurements of RF Phase and Amplitude Stability at FLASH
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307 |
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- H. Schlarb, C. Gerth, W. Koprek, F. Löhl, E. Vogel
DESY, Hamburg
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Beam based techniques to determine the phase and amplitude stability of the photo-cathode laser, the RF gun and superconducting acceleration modules become key tools for the understanding and quality control for FEL operation critical acceleration sub-system. The measurements are used to identify the sources of instabilities, to determine response functions and to optimize RF feedback parameters and algorithm. In this paper, an overview on the measurement techniques and their limitation is given, together with some important results on the currently achieved RF and laser stability.
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