FIGURES
2.1 Dose-rate instrumentation and generator at 425 yards
on the 85-degree axis -------------------- 202-2 13
2.2 Location of close-in MG-3 detector head --------------------------- 13
2.3 Station plot plan------~---+------------ 2-222 - eee eee eee ene ene 14
2.4 Kaiser dose-rate instrument, showing probe, compressor-oscillator-
amplifier unit, and power supply (top to bottom) ---------------+-+- 15
2.5 Block diagram nuclear dose-rate measuring instrument ---~---~----------- 16
2.6 Kaiser dose-rate instrument, gamma scintillation probe ---------------- 18
2.7 Kaiser dose-rate instrument, oscillator and compression circuit----------- 19
2.8 Dose-rate instrument, regulated power supply ----------------------- 20
2.9 Calibration curve for Kaiser dose-rate instruments,
750-yard station --~----+------+-----------+------------ ee
2.10 Diagram of Kaiser playback-and~readout equipment --------~----------2.11 Calibration curve for 500-curie Co™ source -----------------------2.12 Calibration curves for NBS dosimeter film ---------~---------------2.13 Fallout detector (MG-3), showing detector, indicating, and
recording units --------~--------------5----+--- 5-2 eee eee
2.14 Detector and indicator of MG-3-------------------+-------------2.15 MG-3 detector installation --~---------------+----+-+---+---------2.16 Calibration for neutron films, rad versus tracks per field--------------3.1 Initial-gamma dose rate versus time at 750 yards, 85-degree axis---------3.2 Initial-gamma dose rate versus time at 550 yards; 85-degreeaxis -----~----3.3 Summary of dose-rate data- --~----~-----------+-----------------3.4 Integrated initial-gamma dose percent of total dose versus time,
21
22
23
24
25
26
27
27
30
30
32
750 yards ----~-------+-------- +22 -- eee ee eee eee ~----32
3.5 Summaryof initial gamma, RD’ versus D--------------------------- 33
3.6 Neutron dose, RD’ versus D, from sulfur activation on 0-degree
axiS + ------ 2+ eee ee ee ee eee ee ne ee ee 36
3.7 Neutron dose, RD? versus D, from sulfur activation on 85-
degree axis ---~------~-+--~--------- 2-2-2 2 - ee ee ee ee eee 36
3.8 Neutron dose from Types A and B film, 0-degree axis, RD?
.
versus D-----~-------~--------+------------------+------- 40
3.9 Neutron dose from Types A and B film, 85-degree axis,
RD? versus D----------~--------------------------------- 40
3.10 Summary of neutron dose -----------------fe mene ne en ee eee eee 41
3.11 MG-3 data at underground station, 30 yards from ground zero ----~-------- 41
TABLES
1.1 Isotope Half Lives and Energies ------------------+------- tence eee 11
2.1 Instrument Location ---------.---------------- +--+ + eee 17
2.2
3.1
3.2
3.3
3.4
Calibration and Reading of Instrumentation----.--.---.-------+------.Initial-Gamma Dose Rate versus Time--------~-------------Sa wee neue
Initial-Gamma Dose versus Slant Distance, 0-degree Axis---.-~..-------Initial-Gamma Dose versus Slant Distance, 85-degree Axis----~.--------Neutron Dose from Sulfur Activation, 0-degree Axis ------------~-------
18
31
34
34
37.
3.5 Neutron Dose from Sulfur Activation, 85-degree Axis--------~---------- 38
3.6 Neutron Dose from Types A and B Film, 0-degree Axis------~--------- - 39
3.7 Neutron Dose from Types A and B Film, 85-degree Axis -----.---------- 39