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Abstract
Gains, Uniformity and Signal Sharing in XY Readouts of the 10 cm × 10 cm Gas Electron Multiplier (GEM) Detector
Highlights
The gas electron multiplier (GEM) detector was invented by Sauli in 1997.1 Since its invention, it has gained attention amongst international scientists and researchers
GEM detectors are utilised in varied scientific research, including tracking devices in nuclear and particle physics, medical imaging, astronomy and neutron detection.[4,5,6,7]
The GEM detector has recently become one of the most promising particle and radiation detectors. It has been utilised in varied scientific research, including particle and nuclear physics, medical applications, astronomy and national security
Summary
The gas electron multiplier (GEM) detector was invented by Sauli in 1997.1 Since its invention, it has gained attention amongst international scientists and researchers. Uniformity and Signal Sharing operate in most gases, the ability to vary gains of the detector (up to 105), excellent spatial resolution (50 μm or better), high rate capability, flexibility in design and its relatively low cost.[2,3] GEM detectors are utilised in varied scientific research, including tracking devices in nuclear and particle physics, medical imaging, astronomy and neutron detection.[4,5,6,7]. The 10 cm × 10 cm GEM detector was designed, developed and supplied by the Gas Detectors Development Group at the European Organization for Nuclear Research (CERN). A voltage difference of 250–400 V is supplied between the two copper plates, such that a strong electric field is formed inside the GEM holes. In addition to GEM foils, the drift cathode is usually made of a thin sheet of aluminised Kapton, where the aluminium side is supplied with the most negative voltage. The difference in strip widths is designed to improve signal sharing between the X and Y strips.[8]
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