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Title: FEL potential of eRHIC

Abstract

Brookhaven National Laboratory plans to build a 5-to-30 GeV energy-recovery linac (ERL) for its future electron-ion collider, eRHIC. In past few months, the Laboratory turned its attention to the potential of this unique machine for free electron lasers (FELS), which we initially assessed earlier. In this paper, we present our current vision of a possible FEL farm, and of narrow-band FEL-oscillators driven by this accelerator. eRHIC, the proposed electron-ion collider at BNL, takes advantage of the existing Relativistic Heavy Ion Collider (RHIC) complex. Plans call for adding a six-pass super-conducting (SRF) ERL to this complex to collide polarized- and unpolarized- electron beams with heavy ions (with energies up to 130 GeV per nucleon) and with polarized protons (with energies up to 325 GeV). RHIC, with a circumference of 3.834 km, has three-fold symmetry and six straight sections each {approx} 250 m long. Two of these straight sections will accommodate 703-MHz SRF linacs. The maximum energy of the electron beam in eRHIC will be reached in stages, from 5 GeV to 30 GeV, by increasing the lengths of its SRF linacs. We plan to install at the start the six-pass magnetic system with small gap magnets. The structure of the eRHIC'smore » electron beam will be identical with that of its hadron beam, viz., 166 bunches will be filled, reserving about a one-microsecond gap for the abort kicker. With modest modifications, we can assure that eRHIC's ERL will become an excellent driver for continuous wave (CW) FELs (see Fig.1). The eRHIC's beam structure will support the operation of several such FELs in parasitic mode.« less

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) Relativistic Heavy Ion Collider
Sponsoring Org.:
DOE - Office Of Science
OSTI Identifier:
1013512
Report Number(s):
BNL-94067-2010-CP
R&D Project: KBCH139; 18054; KB0202011; TRN: US1102500
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: 32nd International Free Electron Laser Conference; Malmo City, Sweden; 20100823 through 20100827
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BNL; ELECTRON BEAMS; ENERGY RECOVERY; FREE ELECTRON LASERS; HADRONS; HEAVY IONS; LINEAR ACCELERATORS; MAGNETS; MODIFICATIONS; PROTONS; SYMMETRY; relativistic heavy ion collider

Citation Formats

Litvinenko, V.N., Ben-Zvi, I., Hao, Y., Kao, C-C., Kayran, D., Murphy, J.B., Ptitsyn, V., Trbojevic, D., and Tsoupas, N. FEL potential of eRHIC. United States: N. p., 2010. Web.
Litvinenko, V.N., Ben-Zvi, I., Hao, Y., Kao, C-C., Kayran, D., Murphy, J.B., Ptitsyn, V., Trbojevic, D., & Tsoupas, N. FEL potential of eRHIC. United States.
Litvinenko, V.N., Ben-Zvi, I., Hao, Y., Kao, C-C., Kayran, D., Murphy, J.B., Ptitsyn, V., Trbojevic, D., and Tsoupas, N. Mon . "FEL potential of eRHIC". United States. https://www.osti.gov/servlets/purl/1013512.
@article{osti_1013512,
title = {FEL potential of eRHIC},
author = {Litvinenko, V.N. and Ben-Zvi, I. and Hao, Y. and Kao, C-C. and Kayran, D. and Murphy, J.B. and Ptitsyn, V. and Trbojevic, D. and Tsoupas, N.},
abstractNote = {Brookhaven National Laboratory plans to build a 5-to-30 GeV energy-recovery linac (ERL) for its future electron-ion collider, eRHIC. In past few months, the Laboratory turned its attention to the potential of this unique machine for free electron lasers (FELS), which we initially assessed earlier. In this paper, we present our current vision of a possible FEL farm, and of narrow-band FEL-oscillators driven by this accelerator. eRHIC, the proposed electron-ion collider at BNL, takes advantage of the existing Relativistic Heavy Ion Collider (RHIC) complex. Plans call for adding a six-pass super-conducting (SRF) ERL to this complex to collide polarized- and unpolarized- electron beams with heavy ions (with energies up to 130 GeV per nucleon) and with polarized protons (with energies up to 325 GeV). RHIC, with a circumference of 3.834 km, has three-fold symmetry and six straight sections each {approx} 250 m long. Two of these straight sections will accommodate 703-MHz SRF linacs. The maximum energy of the electron beam in eRHIC will be reached in stages, from 5 GeV to 30 GeV, by increasing the lengths of its SRF linacs. We plan to install at the start the six-pass magnetic system with small gap magnets. The structure of the eRHIC's electron beam will be identical with that of its hadron beam, viz., 166 bunches will be filled, reserving about a one-microsecond gap for the abort kicker. With modest modifications, we can assure that eRHIC's ERL will become an excellent driver for continuous wave (CW) FELs (see Fig.1). The eRHIC's beam structure will support the operation of several such FELs in parasitic mode.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {8}
}

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