COMMISSIONING OF THE LOW ENERGY BEAM TRANSPORT

The Front End Test Stand (FETS) at the Rutherford Appleton Laboratory is intended to demonstrate the early stages of acceleration (0-3 MeV) and beam chopping re-quired for high power proton accelerators, including proton drivers for pulsed neutron spallation sources and neutrino factories. A Low Energy Beam Transport (LEBT), con-sisting of three solenoids and four drift sections, is used to transport the H − beam from the ion source to the FETS Radio Frequency Quadrupole. We present the status of the installation and commissioning of the LEBT, and compare particle dynamics simulations with preliminary measure-ments of the H − beam transport through the LEBT