Recent development on Nimrod

Recent development carried out on the main magnet field correction system, the beam diagnostics and the beam extraction systems of the Nimrod 7 GeV proton synchrotron, is described. New magnet field correction system provides a correction set of different magnet parameters. An analog of the requiered correction set is produced by the analogue programmer. A full aperture ferrite current transformer has been installed to measure the beam injected into the accelerator. The aperture of the transformer is 97 by 25 cm. The extracted beam intensity, position and profile are monitored at various points in the external beam transport lines, using multiple plate secondary emission chambers. Beam spill for a rapid cycling bubble chamber and extracted beams for the study of a spallation of neutron source target have been produced