Title :
Control and data processing of the distributed 500 MHz narrowband beam position monitor system of ELSA
Author :
Dietrich, J. ; Keil, J. ; Mohos, I.
Author_Institution :
Inst. fur Kernphys., Forschungszentrum Julich GmbH, Germany
Abstract :
The preservation of the polarization level during acceleration of the electron beam is currently the main topic at the Electron Stretcher Accelerator (ELSA) of the University of Bonn. It can be improved by a good correction of the closed-orbit relative to the magnetic quadruple centres using the method of beam-based alignment. Beam position monitor electronics, developed in the Forschungszentrum Julich/IKP for ELSA are integrated to form the 28 BPM orbit measurement equipment. The deviation of the closed orbit measured by the BPM system was reduced to an rms-value of 140 μm
Keywords :
accelerator control systems; electron accelerators; particle beam diagnostics; storage rings; 500 MHz; ELSA; Electron Stretcher Accelerator; beam position monitor electronics; beam-based alignment; closed-orbit; data processing; distributed 500 MHz narrowband beam position monitor system; magnetic quadruple centres; Acceleration; Data processing; Electron accelerators; Electron beams; Extraterrestrial measurements; Monitoring; Narrowband; Polarization; Position measurement; Process control;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.794370
