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SLAC:

At SLAC, experiments to measure the spin structure of the neutron with a He target, E154, and the spin structure of the proton and neutron with polarized H/D targets, E155, are planned to run in the next several years. This program is expected to be completed during 1996. These experiments are conducted in End Station A and make use of the newly-developed 50 GeV polarized electron beam. After completion of the spin structure program, there are no more approved experiments or definite plans. It appears that End Station A will fall to a lower priority at SLAC compared with the B-Factory. At the completion of the B-Factory (approximately 2000), a 50 GeV, polarized electron beam with a 200- ns pulse width with electrons/pulse and a pulse rate of 120 Hz should be available for experiments.


cardman@cebaf.gov