Bates South Hall Ring commissioning for internal target experiments

In 2003, the installation and commissioning of the Bates Large Acceptance Spectrometer Toroid (BLAST) came in its final state. The South Hall Ring (SHR) commissioning has been dynamically integrated in this process to provide high quality electron beams under BLAST experimental conditions. The design goal of 80 mA stored high polarization beams is met routinely. Results of beam development for the BLAST commissioning runs in 2002 and 2003 are presented. New developments in beam diagnostic and spin manipulation are also presented.