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

fYear

1993

fDate

17-20 May 1993

Firstpage

1975

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.309196

Filename

309196