Synchrotron-Magnet Cost Studies

Cost studies of magnet designs for a 200-BeV synchrotron led to a novel coil design using cross sections of the conductor that differed for the inner and outer coil sides. The primary basis for estimating costs of magnet construction was the record of the actual costs of the Brookhaven AGS magnet. Determinations of optimum magnetic-flux densities and optimum current densities were made by minimizing the total costs of magnet cores, magnet coils, power supply, operating costs, magnet-support structure, correcting magnets, and tunnel enclosure. The studies depended significantly on the use of computer programs for predicting magnetic fields in air and in iron. Operating costs were capitalized by multiplying the cost per year by 10.