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Title: Frequency shift observer for SNS superconducting RF cavity.

Conference ·
OSTI ID:974703

In contrast to a normal conducting RF cavity, a superconducting RF cavity is very susceptible to shifts in its resonance frequency. The main sources of the shift are Lorentz force detuning and microphonics. In SNS, to compensate for the frequency shift, a feedforward control is to be applied. In this paper, as an initiative step, a frequency shift observer is proposed which is simple enough to be implemented with a digital signal processor in real time. Simulation results of the proposed frequency shift observer show reliable performance and acceptable computation time for the real time implementation.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
OSTI ID:
974703
Report Number(s):
LA-UR-02-5132; TRN: US1002368
Resource Relation:
Conference: Submitted to: LINAC 2002, [Gyeongju, Korea.]
Country of Publication:
United States
Language:
English