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6 Explanations Volume 6
For full calibration, only the final level value is to be entered. The
count rate has already been calculated automatically from the
absorption coefficient.
Figure 6-6 One-point calibration
The absorption coefficient is automatically calculated with following
formula
for Co-60: a1 = 0.0044 x r x AP
for Cs-137: a1 = 0.006 x r x AP
ρ
= vessel filling density in g/cm
3
AP = Absorption path in mm
absorption
path
+
Empty Full
Enter:
Product density
and
absorption path
Max.
Min.
Measuring Range
Absorbtion Path
Point Source
Point Detector
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