Design and construction of the main linac module for the superconducting energy recovery linac project at Cornell

Abstract

Abstract. Cornell University has been designing and building superconducting accelerators for various applications for more than 50 years. Currently, an energy-recovery linac (ERL) based synchrotron-light facility is proposed making use of the existing CESR facility. As part of the phase 1 R&D program funded by the NSF, critical challenges in the design were addressed, one of them being a full linac cryo-module. It houses 6 superconducting cavities-operated at 1.8 K in continuous wave (CW) mode -with individual HOM absorbers and one magnet/ BPM section. Pushing the limits, a high quality factor of the cavities (2•10 10 ) and high beam currents (100 mA accelerated plus 100 mA decelerated) are targeted. We will present the design of the main linac cryo-module (MLC) being finalized recently, its cryogenic features and report on the status of the fabrication which started in late 2012.

Conceptual design of the high-power electron beam irradiator using niobium-tin superconducting cavity

“…The maximum beam power is 10 MeV × 50 mA = 500 kW, which is supplied by RF power through the input coupler. Currently, input couplers at the 40 kW level have been developed for the cERL injector [12], and 60 kW input couplers have been developed at the Cornell ERL injector [13]. The maximum power assumed for the input coupler is 60 kW to ensure safe operation.…”