CONTENTS
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FOREWORD -7-7 77 77 TTT e
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ABSTRACT <-- rrr ttt rr

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INTRODUCTION -----~------- enter errr tc t

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1.1 Objectives --- ctr r rrr rrr rae soccer tscece

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woecc~-PREFACE --~ 7 t ttre wrt s testes cere
CHAPTER 1

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1.2 Background -------<-----7--%57e>- ww ewe ner esses

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1.9 Theory --- crt rrr rrr ttt rr strc s scr ccrncn 10
OPERATIONS AND INSTRUMENTATION --~---<-------- woos 14
2.1 Detectors -------- Rr tt rn et ren eee rere cence 15

CHAPTER 2

2.1.1 Description ------------- renner reenter e- aero eee ee 18

2.1.2 Calibration ----------2--- -- - ee re err eter tee erence 18
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2.2 Data Encoder---- -- won enn ne ee ee
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2.8 Magnetic-Tape Recorder - --~<--------9 7 errr re

2.3.1 Recording Electronics ----------------------- meee n-ne 25

---- 2220-2 ------2.3.2 Timing Electronics ----------------

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2.3.3 Erase Electronics ----------+----+-- 22 - enone see-~ 226
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+-------+------2.4 Calibration ------------------------------+--27
---2.4.1 Detector 1 (Cal) ----------~-------------

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2.4.2 Detector 2 (Lit) ------------------------

2.4.3 Detector 3 (Lil)

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----

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2.5.4 Minus 2 Seconds --------------------

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-----------2.4.4 Detector 4 (KBr) --------------------

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2.5 Command and Programming System ------------es rr cr ne ee re rr eee 30
2.5.1 Minus 7 Minutes -----------2.5.2

Minus 2 Minutes

------2------e2.5.3 Minus 10 Seconds----------~----------

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2.7 Form and Accuracy of Data ------------ 0+ -- terre rrr ern

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2.5.5 Gamma-Ray Pulse
2.6

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Ground Station ~- -- ~ - << <= #22 oe ere

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CHAPTER 3

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RESULTS AND DISCUSSION ~-----------------------

CHAPTER 4

CONCLUSIONS AND RECOMMENDATIONS ----------------

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4.1 Conclusions -------- te ee ee ee ee eee

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------4------4.2 Recommendations -----------------<------

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REFERENCES -- - - ----------- 2-2 eee ce rr rrr cree 36
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