|CERN AC Note (2000-03)-General description of the CNGS Project|
|2. Description of the CNGS project|
In the SPS, the protons will be accelerated to their final energy of 400 GeV, ejected and transported in a transfer line (TN4, to be built) towards the CNGS target. The ejection point from the SPS protons will be in the sandstone molasse, 60 metres below the existing buildings of the zone BA4. All the installations in the CNGS project will be underground.
|Figure 7: The production of pions and kaons (parents of the neutrinos), focussed in the direction of the Gran Sasso by two magnetic horns|
|Figure 8: The CERN proton accelerators used for the CNGS|