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Figure 3: The cone-beam computed tomography dose was measured by inserting a Farmer-type ionization chamber TM30013 into an elliptical phantom. (a) Arrangement of phantom during cone-beam computed tomography dose measurement and (b) measurement points using the Farmer-type ionization chamber TM30013. The calculated Monte Carlo value was calibrated with the absolute dose at measurement point 5

Figure 3: The cone-beam computed tomography dose was measured by inserting a Farmer-type ionization chamber TM30013 into an elliptical phantom. (a) Arrangement of phantom during cone-beam computed tomography dose measurement and (b) measurement points using the Farmer-type ionization chamber TM30013. The calculated Monte Carlo value was calibrated with the absolute dose at measurement point 5