LABORATORI NAZIONALI DI LEGNARO
The Spallation Neutron Source accelerator systems will deliver a 1.0 GeV, 1.4 MW proton beam to a liquid mercury target for neutron scattering research. The accelerator complex consists of an H-injector, capable of producing one-ms-long pulses at 60Hz repetition rate with 38 mA peak current, a 1 GeV linear accelerator, an accumulatorring and associated transport lines. The 2.5MeV beam from the Front End is accelerated to 86 MeV in the Drift Tube Linac, then to 185 MeV in a Coupled-Cavity Linac and finally to 1 GeV in the Superconducting Linac. The staged beam commissioning of the accelerator complex is proceeding as component installation progresses. The Front End, Drift Tube Linac, Coupled-Cavity Linac and Super Conducting Linac have been commissioned with beam at ORNL. The SNS linac is the highest energy proton linear accelerator in the world and its super conducting portion is the first operational pulsed proton superconducting linear accelerator in the world. Status of the project and results of the beam commissioning program will be presented.

DATA: 21-10-2005