Troxler 3430-M, Manual Of Operation And Instruction

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Model 3430 2-1
CHAPTER 2
THEORY OF OPERATION
This chapter contains a brief description of the theory of operation
of the Model 3430 Surface Moisture-Density Gauge. The direct
transmission and backscatter modes of operation are illustrated
along with a brief explanation of the cesium-137 source, americium-
241:beryllium or californium-252 source, and detector geometry.
CONTENTS
Density ........................................................................................... 2-2
Moisture ......................................................................................... 2-5
O
P
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RAT
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EO
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Y