title: Diagnostic experiments at a 3 MeV test stand at Rutherford Appleton Laboratory (United Kingdom).
abstract: A front end is currently under construction consisting of a H(-) Penning ion source (65 keV, 60 mA), low energy beam transport (LEBT), and radio frequency quadrupole (3 MeV output energy) with a medium energy beam transport suitable for high power proton applications. Diagnostics can be divided either in destructive techniques such as beam profile monitor, pepperpot, slit-slit emittance scanner (preferably used during commissioning) or nondestructive, permanently installed devices such as photodetachment-based techniques. Another way to determine beam distributions is a scintillator with charge-coupled device camera. First experiments have been performed to control the beam injection into the LEBT. The influence of beam parameters such as particle energy and space-charge compensation on the two-dimensional distribution and profiles will be presented.
authors.affiliation: ASTeC Intense Beams Group, Rutherford Appleton Laboratory, Oxfordshire OX11 0QX, United Kingdom. christoph.gabor@stfc.ac.uk
authors.forename: C
authors.initials: C
authors.lastname: Gabor
authors.forename: D C
authors.initials: DC
authors.lastname: Faircloth
authors.forename: D A
authors.initials: DA
authors.lastname: Lee
authors.forename: S R
authors.initials: SR
authors.lastname: Lawrie
authors.forename: A P
authors.initials: AP
authors.lastname: Letchford
authors.forename: J K
authors.initials: JK
authors.lastname: Pozimski