Digital RF phase detector for Linac in FEL accelerator

SYNCHROTRON TECHNOLOGY AND APPLICATIONS

Digital RF phase detector for Linac in FEL accelerator

YU Lu-Yang，

YIN Chong-Xian，

LIU De-Kang

Nuclear Science and Techniques

Vol.16, No.2

pp.76-81

Published in print 01 Apr 2005

CLC：TL506

23900

The digital RF (Radio Frequency) phase detector based on commercial PXI (PCI eXtensions for Instrumentation) 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 reliability are expected. The system does not present the problems of analog solution.

DBMPXIRFFEL

References

[1]

Michizono S, Anami S, Kawamura M et al.

Digital RF control system for 400 MeV proton Linac of JAERI/KEK Joint Project

, LINAC’02, Kyungju, August 2002.1-3

Baidu Scholar

Google Scholar

[2]

Jachim S P, Ziomek C, Natter E F et al.

The Los Alamos VXI-based modular RF control system

, 1993 Particle Accelerator Conference Proc., Washington, DC., May 1993.1154-1156

Baidu Scholar

Google Scholar

[3]

Ziomek C, Corredoura P.

Digital I/Q Demodulator

, PAC’95, SLAC, May 1995.1-2

Baidu Scholar

Google Scholar

[4]

Smith T L, Cho M H, Grelick A E et al. RF system upgrates to the advanced photon source linear accelerator in support of the FEL operation. LINAC2000-THC10, Aug 2000.2-2

[5]

Schilcher T.

Vector sum control of pulsed accelerating fields in Lorentz force detuned superconducting cavities, Ph.D. Thesis

, DESY Hamburg, August 1998.60-62

Baidu Scholar

Google Scholar

[6]

Wang Yanqing, Sun Feng, Zhu Qunxiong et al. The MATLAB5 Handbook. Beijing: China Machine Press. 2000: 305-323