Title :
Performance of the new master oscillator and phase reference system at FLASH
Author :
Simrock, S. ; Felber, M. ; Hoffmann, M. ; Lorbeer, B. ; Ludwig, F. ; Weddig, H.C. ; Czuba, K.
Author_Institution :
DESY, Hamburg
Abstract :
The master oscillator (MO) and phase reference system at FLASH must provide several RF reference frequencies to widely spread locations with low phase noise and small long term phase drifts. The phase noise requirement of the 1300 MHz reference is of the order of 0.1 deg. while the short and medium term phase stability are of of the order of 0.1 deg. and 1 deg. respectively. The frequency distribution system employs a temperature stabilized coaxial line for RF power distribution and a fiber optic system for the monitoring of phase drifts. Presented are the the concept, design and performance measured in the accelerator environment.
Keywords :
accelerator RF systems; beam handling equipment; particle accelerator accessories; FLASH accelerator; RF power distribution; fiber optic system; frequency distribution system; master oscillator system; phase reference system; Coaxial cables; Control systems; Optical fiber cables; Optical fibers; Oscillators; Phase noise; Power cables; Radio frequency; Stability; Temperature distribution;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440154
