Beam commissioning for a superconducting proton linac

Muon Acceleration in a Superconducting Proton Linac

This note describes how a future Fermilab proton driver [1] based on TESLA superconducting linac modules can perform as both the source of protons to produce the muons and as the accelerator of the muons to be used for a neutrino factory or muon collider. Recent advances in muon cooling [2] have the promise of muon emittances that are compatible with the 1300 MHz accelerating structures that ar...

Preliminary shielding calculations for a 2 GeV superconducting proton linac

This note provides a preliminary estimate of the lateral shielding required for the 2 GeV superconducting proton linac (SPL) and the high-energy transfer line to the accumulator and compressor. The calculations were performed first by a simple lineof-sight model and subsequently by Monte Carlo simulations in cylindrical geometry. Two situations were considered, namely normal linac operation wit...

High duty factor plasma generator for CERN's Superconducting Proton Linac.

CERN's Linac4 is a 160 MeV linear accelerator currently under construction. It will inject negatively charged hydrogen ions into CERN's PS-Booster. Its ion source is a noncesiated rf driven H(-) volume source directly inspired from the one of DESY and is aimed to deliver pulses of 80 mA of H(-) during 0.4 ms at a 2 Hz repetition rate. The Superconducting Proton Linac (SPL) project is part of th...

Beam Halo in Proton Linac Beams

We review the present understanding of beam halo in proton linacs. Space-charge forces acting in mismatched beams have been identified as a major cause of beamhalo. We introduce a new description of the halo using the ratio of moments of the distribution of beam coordinates. We describe the beam-halo experiment that is in preparation at Los Alamos, which will address questions about the beam pr...

Superconducting Driver Linac Beam Dynamics Optimization for Ria