Table 2.

Steps to be followed from the operation point of view to measure the absorbed dose

Steps	Calculation process
Vlim calculation	Calculate the minimum value of voltage Vlim which must be applied at the electrodes in order to obtain an electric field larger than zero to avoid direct electron/positive-ion recombination
Vop check	Choose a proper gas pressure so that the applied operational voltage Vop > Vlim
Charge multiplication regime check	If Vop is such that the chamber is working in uncontrolled charge multiplication regime, decrease the pressure to be out of this regime, according to the Paschen curve
Further pressure optimization	Further optimize the pressure to satisfy the required value, according to the electric field perturbation due to the produced charge