Title :
Thermal stabilization of low level RF distribution systems at SLAC
Author :
McCormick, D. ; Ross, M. ; Himel, T. ; Spencer, N.
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
Analysis of SLC accelerator operator activity, in particular control system knob turns, indicated poor thermal stability performance of the low level RF distribution system in the SLC injector and positron production complex. Daily drifts of up to 15° S-band delay, about 30 times the tolerance, were observed. In this paper we describe the tool used to track down and quantify operator knob turn activity, the low level RF distribution stabilization systems, and some fixes used to correct the problem. In order to identify poorly performing components, a beam timing or phase monitor diagnostic has been developed. Initial results from it are be presented
Keywords :
computerised control; electron accelerators; linear accelerators; physics computing; temperature control; SLAC; SLC injector; beam timing; low level RF distribution systems; operator knob turn activity; phase monitor diagnostic; positron production complex; thermal stability performance; thermal stabilization; Control systems; Delay; Performance analysis; Positrons; Production systems; Radio frequency; Radiofrequency identification; Stability analysis; Thermal stability; Timing;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309196
