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Phase Ref. System Overview
- Provide high stability, low noise 1300MHz reference to synchronize RF and Laser systems
- Phase reference line (PRL) runs first 700m of LINAC
- Also provide LO reference (1320MHz, 3920MHz) to LLRF chassis (separate distribution)
- Long haul reference to experimental laser systems 4km away
- Master timing source for LCLS-I (eventually); 476MHz to Main Drive Line (LCLS-I,FACET)
- Lock/resync generated frequencies at 71.43kHz (1300MHz/18200), common subharmonic