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Title: An energy recovery electron linac-on-ring collider

Abstract

We present the design of high-luminosity electron-proton/ion colliders in which the electrons are produced by an Energy Recovering Linac (ERL). Electron-proton/ion colliders with center of mass energies between 14 GeV and 100 GeV (protons) or 63 GeV/A (ions) and luminosities at the 10{sup 33}(per nucleon) level have been proposed recently as a means for studying hadronic structure. The linac-on-ring option presents significant advantages with respect to: (1) spin manipulations (2) reduction of the synchrotron radiation load in the detectors (3) a wide range of continuous energy variability. Rf power and beam dump considerations require that the electron linac recover the beam energy. Based on extrapolations from actual measurements and calculations, energy recovery is expected to be feasible at currents of a few hundred mA and multi-GeV energies. Luminosity projections for the linac-ring scenario based on fundamental limitations are presented. The feasibility of an energy recovery electron linac-on-proton ring collider is investigated and four conceptual point designs are shown corresponding to electron to proton energies of: 3 GeV on 15 GeV, 5 GeV on 50 GeV and 10 GeV on 250 GeV, and for gold ions with 100 GeV/A. The last two designs assume that the protons or ions are storedmore » in the existing RHIC accelerator. Accelerator physics issues relevant to proton rings and energy recovery linacs are discussed and a list of required R and D for the realization of such a design is presented.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab., Upton, NY (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
772452
Report Number(s):
BNL-67849; KA0403000
R&D Project: LS2; KA0403000; TRN: US0100032
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Conference
Resource Relation:
Conference: 2nd Workshop on Physics with a Polarized-Electron Light-Ion Collider, Cambridge, MA (US), 09/14/2000--09/16/2000; Other Information: PBD: 14 Sep 2000
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; BEAM DUMPS; ENERGY RECOVERY; GOLD IONS; LINEAR ACCELERATORS; LUMINOSITY; PHYSICS; PROTONS; SPIN; SYNCHROTRON RADIATION

Citation Formats

Merminga, L., Krafft, G.A., Lebedev, V.A., and Ben-Zvi, I. An energy recovery electron linac-on-ring collider. United States: N. p., 2000. Web.
Merminga, L., Krafft, G.A., Lebedev, V.A., & Ben-Zvi, I. An energy recovery electron linac-on-ring collider. United States.
Merminga, L., Krafft, G.A., Lebedev, V.A., and Ben-Zvi, I. Thu . "An energy recovery electron linac-on-ring collider". United States. https://www.osti.gov/servlets/purl/772452.
@article{osti_772452,
title = {An energy recovery electron linac-on-ring collider},
author = {Merminga, L. and Krafft, G.A. and Lebedev, V.A. and Ben-Zvi, I.},
abstractNote = {We present the design of high-luminosity electron-proton/ion colliders in which the electrons are produced by an Energy Recovering Linac (ERL). Electron-proton/ion colliders with center of mass energies between 14 GeV and 100 GeV (protons) or 63 GeV/A (ions) and luminosities at the 10{sup 33}(per nucleon) level have been proposed recently as a means for studying hadronic structure. The linac-on-ring option presents significant advantages with respect to: (1) spin manipulations (2) reduction of the synchrotron radiation load in the detectors (3) a wide range of continuous energy variability. Rf power and beam dump considerations require that the electron linac recover the beam energy. Based on extrapolations from actual measurements and calculations, energy recovery is expected to be feasible at currents of a few hundred mA and multi-GeV energies. Luminosity projections for the linac-ring scenario based on fundamental limitations are presented. The feasibility of an energy recovery electron linac-on-proton ring collider is investigated and four conceptual point designs are shown corresponding to electron to proton energies of: 3 GeV on 15 GeV, 5 GeV on 50 GeV and 10 GeV on 250 GeV, and for gold ions with 100 GeV/A. The last two designs assume that the protons or ions are stored in the existing RHIC accelerator. Accelerator physics issues relevant to proton rings and energy recovery linacs are discussed and a list of required R and D for the realization of such a design is presented.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {9}
}

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