NA33

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NA33 (also CRYSTAL ) was an experiment at the Super Proton Synchrotron at CERN that was carried out from 1985 to 1995. The aim was to investigate the electron - positron - pair production along crystal axes by high-energy photons . The spokesman for the collaboration was Joseph Remillieux . The follow-up experiment was NA42 .

construction

A strongly collimated electron beam with 150  GeV was directed onto a thin germanium crystal. The crystal was aligned along different crystal axes using a high-precision goniometer . A magnet , together with two hodoscopes combined with lead glass detectors , then allowed the pulse to be determined .

Individual evidence

  1. ↑ NA33 (CRYSTAL) - Experimental Study of Single Vertex (e -.- e +) Pair Creation in a Crystal. CERN, accessed November 22, 2012 .
  2. ↑ a b NA33 (CRYSTAL) - Experimental Study of Single Vertex (e -.- e +) Pair Creation in a Crystal. CERN, accessed November 22, 2012 .
  3. ↑ NA33 Collaboration: Study of unexplained hard photon production by electrons channeld in a crystal . In: CERN Report . SPSC / 86-22, 1986.
  4. ↑ NA42 (CRYSTAL) - Study of Unexplained Hard Photon Production by Electrons Channeled in a Crystal. CERN, accessed November 22, 2012 .