Characterization of GEM detectors, and the way there… Rodrigo G. Cortiñas CERN, Summer Student Program 2013 Universidad de Buenos Aires, Facultad de Ciencias.

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Characterization of GEM detectors, and the way there… Rodrigo G. Cortiñas CERN, Summer Student Program 2013 Universidad de Buenos Aires, Facultad de Ciencias exactas y Naturales.

Gas Electron Multiplier

Variables Pitch Shape of holes Applied voltage Radiation intensity Gas composition (Ne, Ar…) …

Measurements Stability

Measurements Stability

Measurements Stability

Energy Resolution (~ momentum or ~wave number of striped electrons)

Output=f*g=Signal*Noise

Output=Signal*Noise

(“fallacy of the converse”)

 Why GEM?  What is a single wire?  Which radioactive sources do we use for testing?  Where does the Power Bar live?  Security measurements for radiation  Why two Gaussians in energy resolution?