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Title: Design considerations for a laser-plasma linear collider

Abstract

Design considerations for a next-generation electron-positron linear collider based on laser-plasma-accelerators are discussed. Several of the advantages and challenges of laser-plasma-based accelerator technology are addressed. An example of the parameters for a 1 TeV laser-plasma-based collider is presented.

Authors:
; ; ; ;  [1]
  1. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
Publication Date:
OSTI Identifier:
21255220
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1086; Journal Issue: 1; Conference: 13. advanced accelerator concepts workshop, Santa Cruz, CA (United States), 27 Jul - 2 Aug 2008; Other Information: DOI: 10.1063/1.3080906; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ELECTRONS; HADRONS; LASERS; LINEAR COLLIDERS; PLASMA; PLASMA GUNS; POSITRONS; TEV RANGE 01-10

Citation Formats

Schroeder, C. B., Esarey, E., Geddes, C. G. R., Toth, Cs., and Leemans, W. P. Design considerations for a laser-plasma linear collider. United States: N. p., 2009. Web. doi:10.1063/1.3080906.
Schroeder, C. B., Esarey, E., Geddes, C. G. R., Toth, Cs., & Leemans, W. P. Design considerations for a laser-plasma linear collider. United States. doi:10.1063/1.3080906.
Schroeder, C. B., Esarey, E., Geddes, C. G. R., Toth, Cs., and Leemans, W. P. 2009. "Design considerations for a laser-plasma linear collider". United States. doi:10.1063/1.3080906.
@article{osti_21255220,
title = {Design considerations for a laser-plasma linear collider},
author = {Schroeder, C. B. and Esarey, E. and Geddes, C. G. R. and Toth, Cs. and Leemans, W. P.},
abstractNote = {Design considerations for a next-generation electron-positron linear collider based on laser-plasma-accelerators are discussed. Several of the advantages and challenges of laser-plasma-based accelerator technology are addressed. An example of the parameters for a 1 TeV laser-plasma-based collider is presented.},
doi = {10.1063/1.3080906},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1086,
place = {United States},
year = 2009,
month = 1
}
  • Design considerations for a next-generation electron-positron linear collider based on laser-plasma-accelerators are discussed. Several of the advantages and challenges of laser-plasma based accelerator technology are addressed. An example of the parameters for a 1 TeV laser-plasma based collider is presented.
  • A linear electron–positron collider based on laser-plasma accelerators using hollow plasma channels is considered. Laser propagation and energy depletion in the hollow channel is discussed, as well as the overall efficiency of the laser-plasma accelerator. Example parameters are presented for a 1-TeV and 3-TeV center-of-mass collider based on laser-plasma accelerators.
  • A conceptual design of crucial elements of 2x1 km long linac is considered. This linac is driven by a laser radiation distributed within open accelerating structures with special sweeping devices. These devices deflect the laser radiation to the structures in accordance with instant position of accelerated particles. The power reduction and shortening the illumination time for every point on the structure equates to the number of resolved spots, associated with this sweeping device. A 300 J total, 100-ps laser flash could provide the final energy 30 TeV for {lambda}{identical_to}1 {mu}m and 3 TeV for {lambda}{identical_to}10 {mu}m on 1 km withmore » the method described. This total power required could be generated with amplifiers distributed along the linac. For repetition rate 160 Hz the luminosity associated with colliding beams could reach L{approx_equal}10{sup 33} cm{sup -2} s{sup -1} per bunch with population 10{sup 7}. Wall plug power required for operation of LLC is {approx}2 MW.« less
  • Physics considerations for a next-generation linear collider based on laser-plasma accelerators are discussed. The ultra-high accelerating gradient of a laser-plasma accelerator and short laser coupling distance between accelerator stages allows for a compact linac. Two regimes of laser-plasma acceleration are discussed. The highly nonlinear regime has the advantages of higher accelerating fields and uniform focusing forces, whereas the quasi-linear regime has the advantage of symmetric accelerating properties for electrons and positrons. Scaling of various accelerator and collider parameters with respect to plasma density and laser wavelength are derived. Reduction of beamstrahlung effects implies the use of ultra-short bunches of moderatemore » charge. The total linac length scales inversely with the square root of the plasma density, whereas the total power scales proportional to the square root of the density. A 1 TeV center-of-mass collider based on stages using a plasma density of 10{sup 17} cm{sup -3} requires tens of J of laser energy per stage (using 1 {micro}m wavelength lasers) with tens of kHz repetition rate. Coulomb scattering and synchrotron radiation are examined and found not to significantly degrade beam quality. A photon collider based on laser-plasma accelerated beams is also considered. The requirements for the scattering laser energy are comparable to those of a single laser-plasma accelerator stage.« less