Author :
Yunn, Byung C. ; Li, Rui ; Simrock, Stefan
Author_Institution :
Continuous Electron Beam Accel. Facility, Newport News, VA, USA
Abstract :
M. Lee´s program RESOLVE has recently been in extensive use at CEBAF to help identify and correct optics problems in recirculation arcs and in linac beamlines encountered during the commissioning of the 4-GeV accelerator. We describe the integration of the program with our machine applications software package. A significant vertical focusing error in one of the recirculation arcs, which is attributed to edge focusing of dipole magnets, was found from the analysis of difference orbit measurement data. A corrective measure has been successfully implemented. Optics checks in the spreader and recombiner regions are discussed along with linac optics and 60 Hz jitter
Keywords :
accelerator magnets; electromagnets; electron accelerators; electron optics; high energy physics instrumentation computing; jitter; particle beam diagnostics; particle beam focusing; software packages; 4 GeV; 60 Hz; CEBAF; RESOLVE code; corrective measure; difference orbit measurement; dipole magnets; edge focusing; jitter; linac beamlines; optics problems; recirculation arcs; software package; spreader region; vertical focusing error; Application software; Electron accelerators; Electron beams; Energy resolution; Linear particle accelerator; Machine control; Magnets; Optical control; Particle beams; Switches;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505530
