RF CONTROL AT SSCL - AN OBJECT-ORIENTED DESIGN APPROACH

The Superconducting Super Collider (SSC) in Texas, the construction of which was stopped in 1994, would have represented a major challenge i n accelerator research and development. This paper addresses the issue s encountered in the parallel design and construction of the control s ystems for the RF equipment for the five accelerators comprising the S SC. An extensive analysis of the components of the RF control systems has been undertaken, based upon the Schlaer-Mellor object-oriented ana lysis and design (OOA/OOD) methodology. The RF subsystem components su ch as amplifiers, tubes, power supplies, PID loops, etc, were analyzed to produce OOA information, behavior and process models. Using these models, OOD was iteratively applied to develop a generic RF control sy stem design. This paper describes the results of this analysis and the development of 'bridges' between the analysis objects, and the EPICS- based software and underlying VME-based hardware architectures. The ap plication of this approach to several of the SSCL RF control systems i s discussed.