Estimated Limits On Uncontrolled Beam Losses Of Heavy Ions For Allowing Hands-on Maintenance At An Exotic Beam Facility Linac

摘要

Radiation doses to personnel at accelerators are obtained predominately while performing maintenance on components activated generally by beam losses during operations. Beam losses may be classified as either controlled (e.g. at collimators, scrapers, dumps, and stripping regions) or uncontrolled (e.g. from gas stripping and beam halo). Controlled losses are better understood and local shielding and remote handling techniques can be employed to minimize doses. This is different in the case of uncontrolled losses because the amount and locations are difficult to know pre hoc.