BERTHOLD TECHNOLOGIES Uni-Probe LB 490 - Page 707

Uni-Probe LB 490
BERTHOLD TECHNOLOGIES GmbH & Co. KG
7 – 707
Volume 7 6 Explanations
7
Example Meaurement range MR = 200mm
Absorption path AP = 280mm
Density ρ = 1
Isotope: Co-60
a1 = 0.0044 x 1 x 280 = 1.2320
6.3.2 Exponential Two-Point Calibration
In value pair 1, the empty tank is calibrated while in value pair 2,
the full tank is calibrated.
Figure 6-7 Two-point calibration
+
Empty Full
absorption
path
absorption
path