First use of a laser-driven polarized H/D target at the IUCF cooler

摘要

The HERMES Laser-Driven Target Task Force (Argonne, Erlangen and Illinois) is211u001echarged with developing a polarized H/D target for use in the HERA ring at DESY. 211u001eRapid progress was made in the beginning of 1996, leading us to the decision to 211u001etest the target in a realistic experimental environment. In particular, 211u001epolarizations of 0.6 and flows above 10(sup 18) atoms(center dot)s(sup (minus)1) 211u001ehave been achieved on the bench. The laser-driven target and a simple detector 211u001esystem are currently installed in Cooler storage ring at the Indiana University 211u001eCyclotron Facility in order to test its applicability to nuclear physics 211u001eexperiments. Target polarizations are being measured using the (rvec H)(p, p) and 211u001e(rvec D)(p, p) reactions. Initial tests were reasonably successful and the target 211u001eis well along toward becoming viable for nuclear physics.