Research Article
Energy Calibration and Inverse-Square Law of Radiation in Gamma-Ray Measurement Using a Scintillation Detector for Laboratory Experiments
Figure 6
Typical experimental data on the count rate K versus distance R. Experimental statistical errors of K are within the symbols. Lines are the least-squares fits with the inverse-square function of equation (2) to data from 2 to 48 cm and data from 12 to 48 cm for 137Cs (a) and 60Co (b). The insert is the expanded figure showing the fitting of the data from 12 to 48 cm.
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| (b) |