CONTENTS
FOREWORD -----7- 7 - errr rt rr rr rr rer rt tr reer rene
4
ABSTRACT - ----- -- rr errr rrr rrr rr rrr trees
5
CHAPTER 1
9
1.1
1.2
1.3
1.4
INTRODUCTION- ----------------- +--+ ree rere ee
Objective ----------------- eet er et er tn er er tree nee 9
Reasons for Experiment ----------------------7 eee ree 9
Background ------------------ eer ree te eee rr ere ee 9
Prediction Method --------~------------+--~--+--+--------- 10
1.4.1 Basic Theory -----+------------------s2 ete eee eee ee 10
1.4.2 Neutron Spectra- ---------------------+---+--------- ll
1.4.3 Soil Differences- ----------------------+---+<--------- ll
1.5 Summary of Prediction Method - ----------+--~---+------------ 12
CHAPTER 2
PROCEDURE-----------------------------e-- eee 15
CHAPTER 3
RESULTS ------------------ 3-2-2 ore err ree 16
CHAPTER 4
DISCUSSION AND CONCLUSIONS ------~------------+---+ 20
4.1 Discussion ----------------+----------- +--+ 2-22 ee ee ie 20
4.2 Conclusions- -------------------2--2------ 2 eee ee eee 22
REFERENCES -~--~-------------------------- +--+ oe eee eee 23
TABLES
3.1 Sodium and Manganese Contents of Various Test Site Soils --~------ 16
3.2 Sample Activation Data, Shot Yuma ------------------------- 17
3.3 Dose Rates Near Station 253.08, Shot Yuma ----~--------------~ 17
4.1 Comparison of Calculated and Measured Dose Rates- ------------- 21
FIGURES
1.1 Dose rate versus hydrogen content ------------------------- 12
1.2 Corrections for variations in neutron spectrum ------7---------- 13
3.1 Sample of coral soil data-------------------------------- 17
3.2 Sample of NaC] data ----------------------------------- 18
3.3 Sample of MnO, data~------------------------------ eee 18
3.4 Shot Yumagold neutrons versus slant range ------------------- 19
4.1 Least-square values compared to measurements - ----~----------- 21