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Digital RF phase detector for Linac in FEL accelerator |
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| Authors: | YU Lu-Yang YIN Chong-Xian LIU De-Kang |
| Affiliation: | 1. Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Shanghai 201800;Graduate School of the Chinese Academy of Sciences, Beijing 100049 2. Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Shanghai 201800 3. Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Shanghai 201800;Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100049 |
| Abstract: | The digital RF (Radio Frequency) phase detector based on commercial PXI (PCI eXtensions for Instru- mentation) modules for the Linac is fully described in the paper. The DBM (Double Balance Mixer) is used as the phase detector and its control and data acquisition system is based on the PXI bus. The software adopts a curve fitting algorithm. The prototype has been tested in the laboratory and the good resolution, accuracy, reproducibility and re- liability are expected. The system does not present the problems of analog solution. |
| Keywords: | DBM PXI RF FEL |
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