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Page 33 Oliver Jäkel Medical Physics
Semiconductor-based detector
particle position
area: 1.4 x 1.4 cm2
256 x 256 pixels
time of arrival
3D voxel detector based on
Timepix, P. Soukup et al. 2011
JINST 6 C01060
1. detector layer 2. detector layer
Timepix (Medipix) as a tracking monitor
Tracking secondary charged particles with ~100% efficiency
Work by M. Martisikova
Page 34 Oliver Jäkel Medical Physics
Range determination using prompt protons
Range/position monitoring: ~1-2mm; Beam width: ~2mm
K. Gwosch, PMB 2013
Larger detector needed for igh res. images at low dose