Fig. 2From: Helium ion beam imaging for image guided ion radiotherapyLeft side: Visualization of a single Timepix detector structure by the Medipix Collaboration (www.cern.ch/medipix). Right side: Typical signal as recorded by the Timepix detector during helium ion beam imaging. The detector was operated in the energy mode. Larger clusters correspond to helium ions, the smaller ones are due to lighter secondary particlesBack to article page