SLAC Storage Ring Beam Transport Instrumentation and Operation

Accelerator beam transport system instrumentation, and operation in general, is a matter of routine engineering. Given sufficient funds and space, an optimum design with maximum effective human interface usually prevails. However, given a very low budget and the criteria that the alternately injected e-, e+ beam be run simultaneously with a minimum of six other primary beams, a deviation from standard design practice and operation philosophy was required. This paper will describe the requirements necessary to bring the alternate e- or e+ beam through the 400 meter long beam transport system with an initial common bend of 48° then a separate bend of 12° each for each of the electron and positron beam paths. The approach to effectively fulfill the operation requirements was a coherent mixture of adding controls to existing similar function panels and a multitask operation chassis. This multitask chassis contains different but interrelated functions in a single panel. The operation of this multitask panel is also operable from the distant and separate SPEAR control room. The deviation of general engineering practices resulted in an optimum performance per cost balance.