2,617 research outputs found
Simulation of laser-Compton cooling of electron beams for future linear colliders
We study a method of laser-Compton cooling of electron beams for future
linear colliders. Using a Monte Carlo code, we evaluate the effects of the
laser-electron interaction for transverse cooling. The optics with and without
chromatic correction for the cooling are examined. The laser-Compton cooling
for JLC/NLC at GeV is considered.Comment: 18 pages, 12 figures, 21st ICFA Beam Dynamics Workshop on Laser-Beam
Interactions, Stony Brook, New York, June 11-15, 200
The FCC-ee Interaction Region Magnet Design
The design of the region close to the interaction point of the FCC-ee
experiments is especially challenging. The beams collide at an angle (+-15
mrad) in the high-field region of the detector solenoid. Moreover, the very low
vertical beta_y* of the machine necessitates that the final focusing
quadrupoles have a distance from the IP (L*) of around 2 m and therefore are
inside the main detector solenoid. The beams should be screened from the effect
of the detector magnetic field, and the emittance blow-up due to vertical
dispersion in the interaction region should be minimized, while leaving enough
space for detector components. Crosstalk between the two final focus
quadrupoles, only about 6 cm apart at the tip, should also be minimized.Comment: Poster presented at IPAC16, May 8-13, Busan, Kore
Small Angle Crab Compensation for LHC IR Upgrade
A small angle crab scheme is being considered for the LHC luminosity upgrade. In this paper we present a 400MHz superconducting cavity design and discuss the pertinent RF challenges. We also present a study on the beam-beam performance and proton-beam emittance growth in the presence of crab compensation, with RF noise sources
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