Darmstadt 2016 – wissenschaftliches Programm

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SYER: Symposium The Physics of Energy-Recovering LINACs

SYER 1: The Physics of Energy-Recovering LINACs I

SYER 1.2: Hauptvortrag

Mittwoch, 16. März 2016, 09:45–10:30, S1/05 122

An FFAG-ERL at Cornell University for eRHIC Prototyping and Bright-Beam Applications — •Georg Hoffstaetter — Cornell University, Ithaca / NY

Cornell University has prototyped technology essential for any high-brightness electron ERL. This includes a DC gun and an SRF injector Linac with world-record current and normalized brightness in a bunch train, a high-current CW cryomodule for 70MeV energy gain, a high-power beam stop, and several diagnostics tools for high-current and high-brightness beams, e.g. slid measurements for 6-D phase-space densities, a fast wire scanner for beam profiles, and beam loos diagnostics. All these are now available to equip a one-cryomodule ERL, and laboratory space has been cleared out and is radiation shielded to install this ERL at Cornell.

BNL has designed a multi-turn ERL for eRHIC, where beam is transported more than 20 times around the RHIC tunnel. The number of transport lines is minimized by using two non-scaling (NS) FFAG arcs.

A collaboration between BNL and Cornell has been formed to investigate the new NS-FFAG optics and the multi-turn eRHIC ERL design by building a 4-turn, one-cryomodule ERL at Cornell. It has a NS-FFAG return loop built with permanent magnets and is meant to accelerate 40mA beam to 250MeV.