Electron Cooling of RHIC

I Benzvi,V N Litvinenko,Desmond P J Barton,D R Beavis,M Blaskiewicz,J M Brennan,A Burrill,Rama R Calaga,Peter A Cameron,Xiangyun Chang, R Connolly, Yu I Eidelman,A Fedotov,W Fischer, D Gassner,H Hahn,M Harrison,Ady Hershcovitch,H C Hseuh,A Jain,P Johnson,D Kayran,J Kewisch, R F Lambiase,W W Mackay, G Mahler,Nikolay Malitsky,G Mcintyre,Weiyi Meng, K Mirabella,C Montag, T Nehring,A Nicoletti, B Oerter,G Parzen, D Pate, J Rank,T Roser,T Russo, J Scaduto,Karen Smith,Triveni Rao,D Trbojevic,Guoan Wang,Jason Wei,Nigel Williams,K C Wu,V Yakimenko, A Zaltsman,Yuhai Zhao,H Bluem, A Burger,M Cole, A Favale,David R Holmes,Jerome W Rathke,T Schultheiss, Andrew S Todd,I A Koop,V V Parkhomchuk,Yu M Shatunov,A N Skrinsky,J Sekutowicz,Alexey V Burov,Sergei Nagaitsev,I N Meshkov,A O Sidorin,A N Smirnov, G Troubnikov, Dan Tyler Abell,David L Bruhwiler,J R Delayen,Ya S Derbenev, W Funk,Peter Kneisel,L Merminga,Louise E Phillips,J Preble

ieee（2005）

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摘要

We report progress on the R&D program for electron-cooling of the Relativistic Heavy Ion Collider (RHIC). This electron cooler is designed to cool 100 GeV/nucleon at storage energy using 54 MeV electrons. The electron source will be a superconducting RF photocathode gun. The accelerator will be a superconducting energy recovery linac. The frequency of the accelerator is set at 703.75 MHz. The maximum electron bunch frequency is 9.38 MHz, with bunch charge of 20 nC. The R&D program has the following components: The photoinjector and its photocathode, the superconducting linac cavity, start-to-end beam dynamics with magnetized electrons, electron cooling calculations including benchmarking experiments and development of a large superconducting solenoid. The photoinjector and linac cavity are being incorporated into an energy recovery linac aimed at demonstrating ampere class current at about 20 MeV.

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关键词

linear particle accelerator,energy recovery,linear accelerator,heat exchanger,superconducting magnets,energy storage,cathodes,radio frequency

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