Table of Content ADSCYACE .o ccc rec cer r ever eee ccrcccc sere csssessecesesceccccsseessoes L Introduction ... ccc ccc re ccc c cree vccerrenseeseenecncrcsetecsssevesse 2 Instrumentation and Methods .......cccccvcene sec cece cree eens senes . 3 Energy Dependence Corrections ......ccccccesccsrccccrenvctcccsces eee 4 RESULTS coc cccc acer verses cc ecscsrerssucccccccctcecevessesessesesesses 6 Discussion Of RESULES ..... ccc reece rece c ec ee reece reese eesesseenae 7 Acknowledgments 2... cvccccccccac vce nscencsecesccsasnsescsssocees weeee LO REferenceS ..ccceccccccccacccaccccasesees ce ceeee sec cece ec ate eee eees 1l Tables .. ce ccc ccc ce ecco cece et reneceses cece e cece cece ec ce ceersseeeree Ld FLIQureS ..ccccccc ccc err ec cccccccsscceanvers eoecreeveaaetoreeeeraeresreoene 23 DOE ARCHIVES - iii -