Project Description: 

The GEMPix detector combines existing CERN-developed technologies - GEM (Gas Electron Multiplier), a type of gaseous ionisation detector and Medipix, a family of photon-counting pixel detectors. In combination, the features of each technology are enhanced and the resultant technology is a hybrid device able to detect all types of radiation with a high spatial resolution.

The purpose of the technology is to measure and visualise the low-energy deposits in gas or tissue-equivalent samples. Due to the wide gain range of the chamber, the new device could also be used to measure particle beam structure (i.e. protons and carbon ions) in hadron therapy with good spatial resolution. It may be used also for X-ray monitoring in burning plasma physics.

Some projects using this technology: 
  • A Versatile Gas Detector
    CERN patented Gas Electron Multiplier updated for use in hadron therapy and radiotherapy.
  • GEMPix
    In 2016, CERN started investigating the use of GEMPix to measure the 3D energy deposition of a therapeutic ion beam in a water phantom, for medical imaging purposes.

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