| Paper | Title | Page |
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| MOPCP087 | Beamloss Monitoring and Control for High Intensity Beams at the AGOR-Facility | 227 |
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Funding: This work is supported by the European Union through EURONS, contract 506065 and the "Stichting voor Fundamenteel Onderzoek der Materie" (FOM). The experiments at the AGOR facility require intense heavy ion beams with a beam power up to 500 W. Examples are 6 x 1012 pps of 20Ne at 23 MeV/A and 1012 pps 206Pb at 8.5 MeV/A. To prevent damage to components by the beam (power density >100 W/mm3 in unfavorable cases) a modular beam loss monitoring and control system has been developed for the cyclotron and high energy beam lines. The architecture of the system will be described and the considerations for the major design choices discussed. The system uses the CAN-bus for communication and verification of system integrity. The injected beam is chopped at 1 kHz with a variable duty factor up to 90 %. The beam intensity at injection and a number of locations in the high energy beam line is measured by inductive pick-ups. Furthermore localized beam losses on slits and diaphragms are directly measured. When beam loss in any section exceeds the predefined maximum value the duty factor of the beam is automatically reduced. Beam diagnostics are protected by switching off the beam when they are inserted at too high intensity. |
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