Conveners
FCC & Channeling: W1.1
- Sultan Dabagov (Istituto Nazionale di Fisica Nucleare)
FCC & Channeling: W1.2
- FRANK ZIMMERMANN (CERN)
This presentation will first describe the status and plans of the ongoing Future Circular Collider (FCC) Feasibility Study, and then survey possible crystal and channeling applications for the FCC. The latter range from crystal-based positron production, over crystalline undulators, to crystal collimation. Finally, a long-term perspective is presented, where, in the far future, crystals or...
The Future Circular electron-positron Collider (FCC-ee) is being designed to reach energy and luminosity frontiers for lepton colliders. This requires managing very high-intensity lepton beams, with stored beam energies up to 17.5 MJ. Therefore, a beam collimation system is essential for safely disposing of unavoidable beam losses. Unique challenges for the collimation system design need to be...
The high-luminosity requirement in future lepton colliders imposes a need for a high-intensity positron source. In the conventional scheme, positron beams are obtained by bremsstrahlung and electron-positron pair through the interaction between a high-energy electron beam and a high-Z amorphous target. In the conventional positron generation system, one way to increase positron intensity is...
Simulation of a crystal-based positron source requires sophisticated modeling of the trajectories of electrons and positrons in a heavy crystalline material, such as a tungsten crystal. This also includes accounting for their multi-photon radiation and ionization energy losses. The models [1-3] for charged particle motion in an averaged atomic potential, as well as their radiation using the...
Positron sources are key elements for future lepton colliders, such as FCC-ee. In order to generate high intensity and low emittance positron beams, two alternative approaches based on oriented crystals have been proposed with respect to the conventional method, which relies on the electron into positron conversion in a thick amorphous target [1,2]. In this contribution, we present the...
An important upgrade program has been deployed for the collimation system of the Large Hadron Collider (LHC) for lead-ion beams, which will achieve their high-luminosity target intensity upgrade during LHC Run 3 (2022-2025). While certain effects like e-cloud, beam-beam interactions, impedance, injection, and dump protection are mitigated with ion beams, halo collimation poses an increasing...
Recent advances in accelerator physics have expanded the array of techniques available for manipulating charged-particle beams. The successful implementation of adiabatic trapping and transport of beams in resonance islands at the CERN Proton Synchrotron has enabled multiturn extraction. The successful installation of bent crystals in the CERN Large Hadron Collider has enhanced the collimation...
The Muon Collider is an ambitious proposal to push the boundaries of high-energy physics beyond current limitations. By exploiting for the first time unstable fundamental particles such as muons, this collider combines the precision of electron/positron collider and the higher energy reach of hadron colliders.
Bent crystal had proven great utility for manipulation of ultrarelativistic beams...
Laser-plasma ion acceleration is a well established field of research, with several mechanisms being exploited to produce particle beams with high energy and short bunch lengths.
One of these techniques is radiation pressure acceleration (RPA), which turns into collisionless shock acceleration (CSA) when thermal effects become relavant.
Scaling laws show that both the vector potential of...
The Mu2e experiment at Fermilab will search for the coherent, neutrino-less conversion of negative muons into electrons in the coulomb field of Al nuclei. This is one of the clearest Charged Lepton Flavour Violating processes for exploring New Physics in the Intensity Frontier of Particle Physics. Observation of this process, by identifying the monoenergetic electron at ~105 MeV, would be an...
