Preinjector for Linac 1, Faraday cage

<!--HTML-->The 50 MeV Linac 1 started up in 1958 as injector to the 26 GeV PS, with a 520 kV Cockcroft-Walton generator as its preinjector, housed in a vast Faraday cage, visible here. When the Cockcroft-Walton broke down in 1973, it was replaced by a much smaller SAMES generator, of the kind used for electrostatic separators. From 1980 on, Linac 2 took over as injector for the 800 MeV Booster, and Linac 1 continued as injector for LEAR. In 1984, the electrostatic preinjector (i.e. the Faraday cage with its contents, SAMES generator and all) was replaced by a 520 keV RFQ. At the lower left corner we see the HV connectors to the SAMES generator, at the right edge part of the opened electronics-platform. Jean-Luc Vallet sees to it that all parts are properly grounded. See also <a href="http://cdsweb.cern.ch/record/968982">7403073X</a>, <a href="http://cdsweb.cern.ch/record/968389">7403074X</a>, <a href="http://cdsweb.cern.ch/record/968984">7403081X</a>, <a href="http://cdsweb.cern.ch/record/968985">7403083X</a>.