THE SSC FULL CELL PROTOTYPE STRING TEST

At the conclusion of the SSC half cell magnet string testing program i n February, 1993, the preliminary data analysis revealed that several substantive technical questions remained unresolved. These questions w ere: 1) could the high voltages to ground (>2 kV) measured during faul t (quench) conditions be substantially reduced, 2) could the number of magnetic elements that became resistive (quenched) be controlled and 3) did the cryostats of the magnetic elements provide adequate insulat ion and isolation to meet designed refrigeration loads. To address the se and other existing questions, a prototypical full cell of collider magnets (ten dipoles and two quadrupoles) was assembled and tested. At the conclusion of this testing there were definitive answers to most of the questions with numerical substantiation, the notable exception being the heat leak question. These answers and other results and issu es are presented in this paper.