2.8 Surface arrival-time data scaled to 1 kt at sea level- ----~---------2.9 Earth-acceleration arrival times versus ground range for Shot 3 ---------------- +--+ ee ee ee ee ee eee 2.10 Pressure-time records, Shot 5~----------------+--~---------- 2.11 Averaged pressure-distance data -----------~-~--+----+---------3.1 Initial gamma exposure versus distance - ----------------------- 3.2 Initial gamma-exposure rates, Shot 4 ----~----------- wee eee 3.3 Neutron-detector data, Shot 1---------~---------+-- een nee 3.4 Neutron fission-detector data, Shot 2~--------------~-----+---3.5 Reconstructed complete fallout pattern, Shot 1, (r/hr at H+ l hour) ~-------~-------+---------------gammarate versus time, Shot 1-------------+---------Residual 3.6 3.7 Cloge-in gammafallout pattern, Shot 3, (r/hr at H + 1 hour) ---------- 3.8 Close-in gamma fallout pattern, Shot 4, (r/hr at H + 1 hour) ---------3.9 Exposure-rate contours, Shot 5, (r/hr at H + 1 hour) -~---~-----+----3.10 Exposure-rate contours, Shot 6, (r/hr at H + 1 hour) -------------3.11 Cumulative particle-size distribution ----------------+----+----3.12 Gross beta decay of fallout samples from Shots 1, 2, 3, and 4 -------3.13 Gross gamma decay of fallout samples from Shots 1, 2, 3, and 4 -----3.14 Gammaionization decay as a function of relative ionization rate, Shot4 ---~------+--------~----+--+---+-++-+---+------3.15 Calculated beta decay -------+----------+--+-----+---+-------+4.1 Test cubicle, Project 3.1----------------------+-------+------4.2 Tare Island facilities after Shot 1 ----+---~---------+------+-+-+-4.3 Closge-in instrument shelters after Shot i----------------+-------- 34 34 36 39 42 +3 45 45 46 ry 4‘ 49 49 30 51 52 54 55 55 ° t 4.4 Aerial view of crater formed by Shotl --------------+--------- 59 62 63 64 6.1 The YAG-39 with the washdown system operating -----------+------6.2 Ship’s course, Shot 5 ------------------------------------ 68 69 79 81 4.5 Sample Pisonia Plot D, Uncle Island, looking toward ground zero +------------+-+-~--------- wt ere 4.6 Sample Palm Plot B, Uncle Island---------~---~----~------------ 6.3 Apparent absorption coefficient y as a function of time -------------6.4 Radiation contours from original beta survey on the YAG-40 83 after Shot 5, 8 May 1954 ------------------------------ 85 YAG-40 after Shot 5, 8 May 1954 -------------- ener cena 86 YAG~-40, Shot 2 -------- ee rn re me errr 87 88 6.5 Radiation contours from original gamma survey on the 6.6 Evaluation of experimental decontamination procedures, 6.7 Percent of original contaminant remaining versus manpower -- -------- 6.8 Initial gamma contamination and residua! percentages after decontamination operations, Shot 2 --~--~---~------+---- ween ne 6.9 Third picture after H-hour et about H + 4 seconds ----------------- 6.10 Progress of shock front at H + 22 seconds --~-~--<------------~--- 14 89 90 90