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One of the three multiwire proportional chambers used in the photon tagging system at the Omega spectrometer
The momentum of incoming electrons, generated by SPS beams, is determined by magnets before they are directed onto a foil. The tagging system, a magnet and the MWPCs then determines the electron momentum after the foil and the difference between the two measurements gives the momentum of the photon...
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1976
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| Acceso en línea: | http://cds.cern.ch/record/917678 |