(E,2E) EXPERIMENTS WITH SPIN-POLARIZED ELECTRONS

Recent experimental work on (e,2e) coincidences involving polarized el ectrons is reviewed. The origin of the observed spin asymmetries are e xchange effects, spin-orbit interaction of the continuum electrons, an d spin-orbit coupling within the target in conjunction with orbital or ientation and exchange. These mechanisms are explained in some detail. Experimental and theoretical investigations of spin effects have been performed for ionization of outer shell electrons as well as for ioni zation of inner shell electrons.