FIGURES 1.1 Graph of gamma exposure versus distance for a one-kt surface burst~ ~~ ---~--+--------+------+--+--------+---- 15 2.1 Schematic diagram showing the basic circuit for the Conrad and Gustave detectors- ~---~---+---------+-+---+---- 20 2.2 Graph showing a typica! calibration curve for the Conrad detectors --~-~+------- rte re re rer rr ee etree 21 2.3 Graph showing typical calibration curves for the Gustave detectors ---------- 7s ee tt rt rr ttre tee 23 Energy dependence of Gustave I detector normalized to Co energy (1.25 Mev), dose rate 100 r/hr-~---~--------------- 23 Schematic diagram showing the photomultiplier feedback circuit of the initial-gamma detectcr svstem-~------~---4+--477 24 3.4 3.5 3.6 3.7 3.8 Residual exposure rate within blast shieid versus time for Shot Zuni; Station 221.03, range 68,600 feet --- ----~----+---Unshielded residual exposure rate versus time for Shot Zuni; Station 221.06, range 70,900 feet-~-~-------~--------Residual exposure rate versus time for Shot Zuni; Station 221.01C, range 10,300 feet- ~ ---------------+----+-Unshielded residual exposure rate versus time for Shot Zuni; Station 221.02C, range 43,400 feet- -~-----~-----~--~+-Unshielded residua] exposure rate versus ‘1me for Shot Zuni; Station How, range 78,000 feet --------------------Unshielded residual exposure rate versus time for Shot Flatheud; Station 221.01, range 45,800 feet~ ---~---------~--Residual exposure rate within blast shield versus time for Shot Flathead, Station 221.04, rane 7,750 feet- --------~--Residual exposure rate within blast snicic versus time 29 30 30 31 31 32 32 for Shot Flathead; Station 221.05, range 10,745 feet -----------~ 33 3.9 Residual] exposure rate within blast shield versus time for Shot Flathead; Station 221.06, range 14.920 feet- ------------- 33 3.10 Unshielded residual exposure rate versus time for Shot 3.11 Flathead; Station 221.06, range 14,920 feet----------------- 34 Unshielded residual exposure rate versus time for Shot Flathead, Station 221.04C, range 70,0U0 feet ---------------Unshielded residual exposure rate versus time for Shot Navajo; Station 221.01, range 46,300 feet ------------------ 3.13 Residual exposure rate Shot Navajo; Station 3.14 Residual exposure rate Shot Navajo, Station 3.15 Residual exposure rate Shot Navajo; Station 3.16 Residua] cxposure rate within blast shield versus time for 221.08, range 7,922 feet---------------within blast shield versus time for 221.04, range 10,700 feet ---------------within blast shield versus time for 221.05, range 13,170 feet --------------versus time for Shot Tewa; Station 221.01, range 28,950 feet --~--------+----~------- 34 35 35 36 36 37 3.17 Residual exposure rzte within blast shield versus time for Shot Tewa; Station 221.03, range 17,550 feet ---------------- 37 3.18 Residual exposure rate within blast shield versus time for Shot Tewa, Station 221.04, range 22,220 feet---------------- 38 10