perforated • diameter 70 µm (50 µm) • pitch of 140 µm • voltage difference • 400 ~ 500 V • 100 kV/cm inside the holes • maximum gain by single GEM • 103 GEM(Gas Electron Multiplier)
332 MeV/u • Bragg peak at 147 mm • 3D reconstruction of the energy deposition (Fig. up) • the comparison with the commercial Peakfinder (Fig. down) GEMPix mounted on water phantom
energy • plasma pileup of the charge in front of Timepix's pixel • The central spots with no filters (normalization) The GEMPix With Different Thickness of Alluminum Filters Placed in Front of The Detector
the detection efficiency of thermal neutron and ions • Shown good performance measuring the characteristics of high intensity beam in cancer treatment • Monitoring of plasmas using the soft x-ray not visible by room temperature silicon detector Conclusions
Leidner, Fabrizio Murtas and Marco Silari, 2021, Medical Applications of the GEMPix. • G. Claps, D. Pacella, et al., 2016, The GEMpix detector as new soft X-rays diagnostic tool for laser produced plasmas. Reference