CONTENTS “ABSTRACT -- ----------- een ee eee ne ee ee nn ne ee ee eee eee FOREWORD - ~----------------------------- <2 --- e eee - ee eee PREFACE- -------- -- ---- -- - 2-2 ee ne nn nn ee eee eee 5 7 7 CHAPTER 1 INTRODUCTION- -------------------------------------- 15 1.1 Objectives- - --------~-------------+---- 2-22 2-22 22 ee eee 1.2 Background - -------------------------- 2+ -2------+---------1.3 Theory ~---------------------------- +--+ 2 ee ee eee 1.3.1 General Requirements -----------------------------------1.3.2 Data Requirements- ~------------------------------------1.3.3 Special Problems and Solutions - ------------------------+----1.3.4 Radionuclide Composition and Radiation Characteristics- ------------1.3.5 Sampling Bias--~---------------------------------------- 15 15 16 16 16 17 17 17 PROCEDURE------------------------------------+--+--2.1 Shot Participation- ----~-------------~+-----+-------------------- 19 1.3.6 Overall Approach- -~-----~------------------+-------------- CHAPTER 2 2.2 Instrumentation - --~----------------~------------------------- 2.2.1 Major Sampling Array -----------------------------------2.2.2 Minor Sampling Array -----------------------------------2.2.3 Special Sampling Facilities --------------------------------2.2.4 Laboratory Facilities ------------------------------------- 16 19 19 19 20 21 22 2.3 Station Locations - - ----------------------------------------- 24 2.3.1 Barges, Rafts, Islands, and Skiffs - --------------------------- 24 2.3.2 Ships ---------------+--+------- ++ -- eee ee ee ee eee ene eee 2.4 Operations -----------------------+-----------------------2.4.1 Logistic - --- ---------- ------ 2+ 25 en ee ee ee ee eee eee 2.4.2 Technical -----~---------------------------+------------- 24 25 25 26 CHAPTER 3 RESULTS -------------------------------------------. 42 3.1 Data Presentation- -~---------------------------------------3.2 Buildup Characteristics- -------------~------------------------3.2.1 Rate of Arrival ~---------------------------------------3.2.2 Times of Arrival, Peak Activity, and Cessation ------------------- 42 42 42 44 3.2.4 Particle-Size Variation- ----------------------------------- 48 3.2.3 Mass-Arrival Rate--------------------~------------------ 3.2.5 Ocean Penetration --------------------------------------- 3.3 Physical, Chemical, and Radiochemical Characteristics- ---------------- 45 47 49 3.3.1 Solid Particles ----------------------------------------- 49 3.3.2 Slurry Particles ---------------------------------------3.3.3 Activity and Fraction of Device ---------+-------------------- 53 55 3.3.4 Chemical Composition and Surface Density- -- ---------------- ‘++ 56 3.4 Radionuclide Composition and Radiation Characteristics - ---------------- 3.4.1 Approach -----~----------------------------------------9 56 56