Klassen, E.

Paper	Title	Page
TUP043	Recent Changes in the 500 MeV Cyclotron's Central Control System to Reduce Beam Downtime and Beam On/Off Transitions	179
	J. J. Pon, E. Klassen, K. S. Lee, M. Mouat, M. Trinczek, P. J. Yogendran TRIUMF, Vancouver
	Recently at TRIUMF there has been an effort to reduce the downtime of scheduled beam and to reduce the number of beam on/beam off transitions on the radioactive ion beam (RIB) targets. In this pursuit, the 500 MeV cyclotron's Controls Group identified and proposed certain areas of improvement. Working with the Beam Delivery and Operations Groups improvements have been developed and now run in production mode. This paper will detail the introduction of three software measures that resulted in beam delivery enhancements. Specifically, 1) a more stable beam current, 2) a more centered beam, and 3) a new concept called "soft trips". Together, these measures reduce the number of beam trips, shorten beam recovery times, reduce thermal shocks on the RIB target, and simplify accelerator operation.
	Poster
TUP044	Control of the Rotating Beam on RIB Targets at TRIUMF	182
	K. S. Lee, E. Klassen, R. E. Laxdal, M. Mouat, W. R. Rawnsley, M. Trinczek TRIUMF, Vancouver
	Modelling of the radioactive ion beam (RIB) targets at TRIUMF has suggested that rotating the high energy proton beam in a circle on the face of the target may provide a greater source of radioactive ions than a static incident beam. To explore this idea a system has been configured to allow the beam of protons in the primary beamline to be steered in a circle and to permit various parameters to be changed. A description of the system and initial experience in operating the rotating beam are included.