Fig. 3
From: Helium ion beam imaging for image guided ion radiotherapy
Correlation between the measured mean cluster volume and the energy deposition in a 300 μm thick silicon layer of the detector as simulated by FLUKA. Different energy depositions levels were reached using monoenergetic protons, helium ions and carbon ions. Left: Vbias = 40 V. Right: Vbias = 10 V. Measured data are shown in blue, data after the developed recalibration procedure are in red. The lower plots show the residual differences between the measurement and simulation. Figures are from [19]