Figure 3From: Impact of very long time output variation in the treatment of total marrow irradiation with helical tomotherapyRotational output variation during 30 minutes’ with the gantry rotation speed of 10 sec/rotation using the cylindrical phantom. The ion chamber reading was collected every 0.1 sec. Four lines with different colors show repeated measurements. Because the rotational output oscillates, the average values of each cycle were calculated and plotted. The dose rate at time 0 was 903 MU/min.Back to article page