Figure 3.

Pulsed dose rate measurements. (a) Schematic representation of the effect of the rotating disk (0.5 mm-width slit, 150 mm radius, dose reduction factor of 5.31 x 10⁻⁴) in the proton beam highlighting the differences between total beam delivery time ($t_{\mathit{total}}$) and pulse duration ($t_{\mathit{pulse}}$). (b) Photoelectric sensor positioned alongside the disk and connected to a digital oscilloscope to record pulse duration and rotation frequencies for multiple values of voltage controlled by a DC power supply.