PORTIONS OF THIS REPORT ARE ILLEQIBLE. k has been reprod~d=th=e=ac opy to permit the broadest possible awallablllty. LOS Ammos Nal!onW Labofalory IS operslecl by Ihe Umversny 01 Calltornla for thO Unned Slales Depnnmenl 01 Energy under comrscl W.7405. ENG.36, (-JP)L!F.