High Current Energy Recovery Linac at BNL

Vladimir Litvinenko ,J Scaduto,D Pate,K Yip,J Rank,B Oerter,J Kewisch,G Mcintyre,A Favale,T Schultheiss,M Blaskiewicz,P Cameron,J Rathke,T Russo,R Lambiase,L Phillips,D Gassner ,V Yakimenko,W Funk,I Ben‐Zvi ,D Holmes,Kaiyue Wu ,A Hershcovitch,Jean Delayen ,R Calaga,A Nicoletti,T Srinivasan‐Rao ,A.m.m Todd ,H Bluem ,Michael Cole ,P D Johnson ,W Meng,A Zaltsman,H.c Hseuh ,Y Zhao,D Kayran,R Connolly,H Hahn,A Burger,T Roser,D Beavis,G Mahler,Kevin S Smith ,N Williams ,T Nehring ,X Chang,J.M Brennan,A Burrill,J Preble

doi:10.1109/pac.2005.1591070

Abstract

We present the design and parameters of an energy recovery linac (ERL) facility, which is under construction in the Collider-Accelerator Department at BNL. This R&D facility has the goal of demonstrating CW operation of an ERL with an average beam current in the range of 0.1 - 1 ampere and with very high efficiency of energy recovery. The possibility of a future upgrade to a two-pass ERL is also being considered. The heart of the facility is a 5-cell 703.75 MHz super-conducting RF linac with strong Higher Order Mode (HOM) damping. The flexible lattice of the ERL provides a test-bed for exploring issues of transverse and longitudinal instabilities and diagnostics of intense CW electron beams. This ERL is also perfectly suited for a far-IR FEL. We present the status and plans for construction and commissioning of this facility.

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