Paper | Title | Page |
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TUP072 | Present Status of Coherent Electron Cooling Proof-of-principle Experiment | 524 |
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Funding: Work supported by Stony Brook University and by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. The status of FEL-based Coherent Electron Cooling Proof-of-principle Experiment at BNL is presented. The experimental set-up is comprised of a 2 MeV CW SRF electron gun and 20 MeV CW SRF linac and 8-m long helical FEL amplifier. The status of the accelerator commissioning, and progress in the construction of the helical undulator at Budker INP, is also reported |
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THP074 | Infrared Diagnostics Instrumentation Design for the Coherent Electron Cooling Proof of Principle Experiment | 905 |
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Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy The Coherent Electron Cooling Proof-of-Principle experiment [*] based on an FEL is currently under construction in the RHIC tunnel at BNL. Diagnostics for the experimental machine [**] are currently being designed, built and installed. This paper focuses on the design of the infrared diagnostic instrumentation downstream of the three tandem 2.8m long helical wiggler sections that will act on a 22MeV 68uA electron beam co-propagating with the 40GeV/u RHIC gold beam. The 14 um FEL radiation, or wiggler light, will be extracted from RHIC via a viewport in a downstream DX magnet cryostat and analysed by instrumentation on a nearby optics bench. Instruments concentrating on three parameters, namely intensity, spectral content, and transverse profile, will extract information from the wiggler light in an attempt to quantify the overlap of the electron and ion beams and act as an indicator of coherent cooling. * V. Litvinkenko, et al THOBN3, PAC2011, New York, NY ** D. M. Gassner, et al WEAP01, BIW2012, Newport News, VA |
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