nae measurement of effective radfsactive decay. The research vessel M/V HOPIZO’ was completely equipped with equipment for depth sampling an? for msasuring radioactivity and oceanopranhic valucs. z After the shot it proceeded into the fallout area and performed its functions, particularly in the areas of interest marked by the DE'ts ani YAG's, RUSITTS vole ate of penetration meters which were installed on the ve} ct = Mm t+ uy Ci yy 3 Q “ The only prelimincry results availatie at this time is that con- deep mocrs2 skiffs, Although the triggers functicne’d preperly ani stcrted both recorders, leakaze in both unierwater cables negated measurements of penetration rate. All cther results await further data reduction, COPIED/p “ -— 2. eo May LANL Re OE