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WG3001 |
Superconducting RF for Energy Recovery Linacs of eRHIC |
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- S.A. Belomestnykh, H. Hahn, G.J. Mahler, R. Than, W. Xu
BNL, Upton, Long Island, New York, USA
- I. Ben-Zvi
Stony Brook University, Stony Brook, USA
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Funding: Work is supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. DOE.
A six-pass ERL will provide 50-mA electron beam for collisions with hadrons in eRHIC. The two main linacs are based on the BNL-3 704 MHz 5-cell elliptical SRF cavities. At full energy of 30 GeV, the length of each linac will reach 200 m. In addition to the main ERL, two smaller single-pass ERLs will be used as 1) 600-MeV injector into the main ERL, and 2) source of 70-mA electron beam for coherent cooling of the hadron beam. This paper describes the design of the SRF cavity and cryomodule, requirements to for the RF system, and plans for prototyping various components.
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Slides WG3001 [3.687 MB]
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WG4003 |
BNL Energy Recovery Linac Instrumentation |
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- D.M. Gassner, L. DeSanto, D. Kayran, G.J. Mahler, R.J. Michnoff, T.A. Miller, M. Wilinski
BNL, Upton, Long Island, New York, USA
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The Energy recovery Linac project is currently under development at the Brookhaven National Laboratory. The ERL is expected to demonstrate energy recovery of high intensity beams with a current of up to a few hundred milliamps, while preserving the emittance of bunches with a charge of a few nanocoulombs produced by a high current SRF gun. To successfully accomplish this task the machine will include beam diagnostics that will be used for accurate characterization of the three dimensional beam phase space at the injection and recirculation energies, transverse and longitudinal beam matching, orbit alignment, beam current measurement, and machine protection. This paper describes the present status of the systems that will be used to meet these goals.
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Slides WG4003 [2.253 MB]
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