Microstructured gas detector

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Micro-structured gas detectors ( MPGD for short , from English micro-pattern gas detector ) are particle detectors with the help of which the traces of charged particles are measured in experiments in high-energy physics . As a further development of the multi- wire chamber , MPGDs also use gas ionization to detect the passage of particles and gas amplification in order to obtain a readable electrical signal. The wires of the multi-wire chamber are replaced by finer structures in MPGDs (typical structure size less than 100 µm), which means that significantly improved spatial resolutions can be achieved in comparison (also less than 100 µm). Examples of microstructured gas detectors are GEM detectors and MicroMegas detectors.

Individual evidence

  1. L. Shekhtman et al .: High resolution micro-pattern gas detectors for particle physics . In: Journal of Instrumentation, Volume 12 . July 27, 2017. doi : 10.1088 / 1748-0221 / 12/07 / C07037 .
  2. ^ Maxim Titov: Perspectives of Micro-Pattern Gaseous Detector Technologies for Future Physics Projects . In: Proceedings of the CMS Workshop, Perspectives on Physics and on CMS at Very High Luminosity . August 15, 2013. arxiv : 1308.3047 .
  3. ^ Rajendra Nath Patra, et al .: Measurement of basic characteristics and gain uniformity of a triple GEM detector . In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 905, 11 October 2018, Pages 199 . October 11, 2018. doi : 10.1016 / j.nima.2017.05.011 .