CONTENTS
ABSTRACT ----------- 2-22 een ee ee en ee ee ee ee eee
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FOREWORD ----------------- 2 ee ee ee nn en ne ee eee
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PREFACE ------------------ eee ee ee ee eee ee eee
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CHAPTER 1 INTRODUCTION----------------------------- eee eee eee
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1.1 Objective------------~-----+--------- ee ee ee eee ee ee ee eee
1.2 Background -----------------------------+----+----+--------
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1.3 Theory -----------------------------+--------- +e eee 10
1.3.1 Initial-Gamma Radiation ---------------++------pomterrcrcesn
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1.3.2 Residual-Gamma Radiation --------+----------------+----+--- ee
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1,3.3 Absorption in Air --~-~--------------- n-ne nn ene een n eee
1.3.4 Hydrodynamic Effect- --------------------+-+---+-----+---ee
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CHAPTER 2 PROCEDURE--------------------- ee eee ee eee eee 14
2.1 Operations- -----------+-----------+----- oe eee ee ee ee ee ee eee
2.2 Instrumentation -----------+----+----+ eee ee ee ee ee ee ee ee eee
2.2.1
2.2.2
2.2.3
2,2.4
2.2.5
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Photographic Dosimeter ----------------------------+-+-+---- 14
Quartz-Fiber Dosimeters ~--~------------+-----------+----- 15
Chemical Dosimeters ---------+-------------+------------+---+ 15
Radiac Detector DT-60/PD --------------------------+------- 17
Radiac Set AN/PDR-89 -----------~--+--------+-+---------- eee 17
2.2.6 Quartz-Fiber Device (Rate Device) for Exposure
versus Time --~----+---- ee ee ee en ee ee ee ee ee ee eee 17
2.2.7 Mechanical Drop Mechanism -------------------------------- 18
2.2.8 Station Layout, Utilization, and Construction --------------------- 18
2.2.9 Co®® Field Calibration ------------------------------------- 21
2.3 Data Requirements ----------------+-------- ee ee ee ee ee ee ee ee 2i
2.3.1 Initial Exposure Calibration -----------------------+----------- 22
2.3.2 Residual-Exposure Calibration ---------------------------+---- 24
2.4 Support Facilities -------------+-------- eee ee ee ee ee ee eee eee 28
CHAPTER 3 RESULTS AND DISCUSSION------------------------------- 29
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
Shot LaCrosse ---------------------+--------- eee eee ee eee
Shot Cherokee -------+----+----+--------- ee eee eee ne eee eee
Shot Zuni- ----+----+-----+---+-- 2 ee ee ee ee ee ee ee eee
Shot Flathead------------------- eee ene nee ee ee ee ee ee ee eee
Shot Dakota ------------------+- 2-2 ene ee ne ne ee ee eee
Shot Navajo ----------------------~----- ee ee ee ee ene eee eee
Shot Tewa ---------------------- ee ee ee ne ee eee
Discussion- - -------------------- n-ne eee ee ne ene ee eee eee
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CHAPTER 4 CONCLUSIONS ------------------------------ ee -n-e eee 47
REFERENCES- - -~--- ----- 2 ene n re
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