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LIST OF FIGURES
Figure 1. Model 3440 Gauge and Accessories ............................... 1–6
Figure 2. Direct Transmission Geometry .......................................... 2–3
Figure 3. Backscatter Geometry .......................................................... 2–3
Figure 4. Backscatter Surface Density Effects .................................. 2–4
Figure 5. Effect of Moisture on Depth of Measurement .............. 2–6
Figure 6. Gauge Illustration .................................................................. 3–2
Figure 7. Model 3440 Keypad ............................................................. 3–3
Figure 8. Source Rod Positions ........................................................... 3–5
Figure 9. Standard Count Position ................................................... 4–18
Figure 10. Drill Rod Positioning ......................................................... 4–23
Figure 11. Marking the Test Area ..................................................... 4–24
Figure 12. Adjusting the Display Contrast ...................................... A-10
Figure 13. NiMH Battery Pack and AA Batteries .......................... A-12
Figure 14. Diagram of an Atom .......................................................... D-2
Figure 15. Effect of Distance on Exposure ....................................... D-6
Figure 16. Cleaning the Tungsten Sliding Block .......................... D-11
Figure 17. Model 3440 Gauge and Transport Case ................... D-17
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