CONTENTS ABSTRACT - - - --- =~ -- = 2-9 ener nn nn nnn nn ene nee ene eee FOREWORD ----------- ~~ 9-2 <2 9 o-oo ne nn nn en nn en eee PREFACE- -- -- -- -- -- -- -- -- 22 0 nn nn nn ne nn ne nn ene ee ene nee 5 7 7 CHAPTER 1 INTRODUCTION- -------------------------------------- 15 1.1 Objectives- - -----------+----+------- 2-22 222-2 eee ee 1.2 Background - -------------+----------------------------2--1.3 Theory ------------ -+-------- 2-22 22 + oe ne ne ee ee eee ee 1.3.1 General Requirements ----------------------------+-------1.3.2 Data Requirements- -- -~------------- ---- 2-222 22 -- 2-2 ----1.3.3 Special Problems and Solutions -----------------------------1.3.4 Radionuclide Composition and Radiation Characteristics- - ------------ 15 15 16 16 16 17 17 1.3.5 Sampling Bias------------------------+-----------------1.3.6 Overall Approach- -----------------------------------+---- 17 14 PROCEDURE------ -------- 22-2 2-22 et ee ee en ee eee eee 19 2.1 Shot Participation- - -------------------------- 2-222 ----- eee 2.2 Instrumentation - - -- -- ------ ---------------+-2-++------------ 19 19 2.2.2 Minor Sampling Array -----------------------+------------- 20 CHAPTER 2 2.2.1 Major Sampling Array ----------------------- We ee en eee eee 19 2.2.3 Special Sampling Facilities --------------------------------2.2.4 Laboratory Facilities ------------------------------+------- 21 22 2.3.1 Barges, Rafts, Islands, and Skiffs ---------------------------2.3.2 Ships ------------------- 2-22 - eee ee en en ee ee eee 2.4 Operations ----------------------------------------------2.4.1 Logistic - - -- -- -------- -- ++ 2- 22 2-2 2 ee ee ee ee ee eee 2.4.2 Technical - --------- ----- --- 2-2 22 2 ee en ene ee ee eee ee ee 24 24 25 25 26 2.3 Station Locations - ------------------------------------------ 24 CHAPTER 3 RESULTS ------------------ 2-22-22 22-2 oe re eee ene, 42 3.1 Data Presentation- - ----------------------------------------- 42 3.2 Buildup Characteristics- -------------------------------------- 42 3.2.2 3.2.3 3.2.4 3.2.5 Times of Arrival, Peak Activity, and Cessation ------------------Mass-Arrival Rate- -------+---------------------------+--Particle-Size Variation- - ---------------------------------Ocean Penetration --------------------------------------- 44 45 468 47 3.3.1 3.3.2 3.3.3 3.3.4 Solid Particles ---------------------- 2-22-22 --+----------Slurry Particles ------------------------------------+--Activity and Fraction of Device ---------------------------+--Chemical Composition and Surface Density- -- -- -------------- “.--- 49 53 55 56 3.2.1 Rate of Arrival -----------------------------+------------ 42 3.3 Physical, Chemical, and Radiochemical Characteristics- ~- -------------- 49 3.4 Radionuclide Composition and Radiation Characteristics - ---------------- 56 3.4.1 Approach ------------------++---+--------+-------------9 56