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Table 1 Fitting Parameters for Calibration Curve

From: Dose calibration of Gafchromic EBT3 film for Ir-192 brachytherapy source using 3D-printed PLA and ABS plastics

Color Channel

a

b

c

Red

− 582.230

− 436.180

0.757

Green

− 996.825

− 727.023

0.730

Blue

− 1633.021

− 773.091

0.475

  1. A rational function, y = a + (b/(x – c)), was used to fit the data where y is the dose and x is the NOD. Based on these parameters, a calibration curve can be created for each color channel