Circular beam scanning power system for isotope production upgrade

Abstract

To increase the production of medical isotopes, an upgrade to the Brookhaven Linac Isotope Producer (BLIP) facility is now being designed and constructed. Currently, the ion beam strikes the isotope producing target in a single spot. With this upgrade, the ion beam will be directed to hit the target in circular patterns, distributing the heat of collision over a bigger area on the target. The power system to create the circular patterns requires orthogonal dipole magnets with sinusoidal currents which are ninety degrees apart from each other. This paper describes the design concept for powering the magnets and the control system that produces the correct waveforms despite component variations.