Physics considerations for laser-plasma linear colliders
By C. Schroeder, Eric Esarey, C. Geddes, C. Benedetti, W. Leemans. 2010
264 citations recorded by the source corpus.
Physics considerations for a next-generation linear collider based on laser-plasma accelerators are discussed. The ultrahigh 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 quasilinear 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 ultrashort bunches of moderate 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-ofmass collider based on stages using a plasma density of 10 17 cm � 3 requires tens of J of laser energy per stage (using 1 � 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.
Subfields: Biomedical Engineering, Geophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/aacc8bac518feeb4297d80e4c83c60f12a0ee832
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Citations in the corpus
- Extremely high-intensity laser interactions with fundamental quantum systems (2011, methodology): “The potential of the Laser-Plasma Accelerator (LPA) scheme to develop a laser-plasma linear collider is discussed in Schroeder et al., 2010.”
- Tunable laser plasma accelerator based on longitudinal density tailoring (2011, background): “Laser plasma accelerators (LPAs) [1] have produced high-quality electron beams with GeV energies from centimeter scale devices [2] and are being investigated as hyperspectral femtosecond light sources producing THz to γ-ray radiation [3–5], and as drivers for future high energy colliders [6, 7].”