An Electron Ion-Collider (EIC) has been highlighted as the highest priority for new construction in the DoE Office of Nuclear Physics. This is a very challenging accelerator that aims at achieving high luminosity and polarization collisions of electrons with multiple ions species and variable center of mass.
Alternative designs are pursued at Jefferson Laboratory (JLEIC) and Brookhaven...
A review of the state of the art of presently working e+e- colliders, from low to high energy, will be presented, with a brief summary of performances. A review of proposed e+e- colliders will also be presented with highlights on the technical challenges.
The design of the interaction region (IR) of the positron-electron future circular collider must comply with various important constraints, imposed by high beam currents, short bunches, high beam energy, high luminosity need for polarization, and crossing scheme. The innovative IR layout of the FCC-ee is based on the crab-waist collision scheme and it will be compatible for all beam energies...
The CLIC Test Facility (CTF3) was built to demonstrate the feasibility of the CLIC two beam acceleration scheme. The main issues to be verified were the high current drive beam generation using a fully loaded highly efficient linac and a beam combination scheme, based on transverse RF deflectors, to increase beam current and bunch repetition frequency.
The drive beam has been used for GW...
The construction of new particle accelerators, more powerful and larger than ever, requires the design and development of high-field superconducting magnets made of Nb3Sn conductor. Beyond obvious challenges pertaining to the size of such machines and consequently, the financial endeavour, the production of superconducting magnets of accelerator quality, which develop fields much higher than...
AWAKE is a plasma wakefield acceleration experiment using the 12cm-long, 400GeV proton bunch of the CERN SPS. In order to reach an acceleration gradient in the GeV/m range, the plasma electron density is $7\times10^{14}cm^{-3}$. The transverse self-modulation instability (SMI), strongly seeded by an laser ionization front, turns the long bunch into a train of micro-bunches at the plasma...
Muon beams of low emittance provide the basis for the intense, well characterised neutrino beams of the Neutrino Factory and for leptonantilepton
collisions at energies of up to several TeV at a Muon Collider. The international Muon Ionization Cooling Experiment (MICE) will demonstrate ionization
cooling the technique by which it is proposed to reduce the phasespace
volume occupied by the muon...
Atomic physics, dismissed prematurely by many to the role of introductory chemistry, had a remarkable renaissance in recent decades thanks to the new ideas and progress in laser technologies. Could this path be followed in other research domains which address femtometer length scales? The key challenge is to create high intensity and brilliance photon beams in the gamma-ray, MeV region,...
A new scheme to produce muon beams characterized by very low emittance, in such a way to avoid the need for cooling, using a positron beam of about 45 GeV interacting on electrons on target is being studied by our group. This scheme is challenging and innovative, and needs a full design study to be developed. In particular, one of the novel topics to be investigated is the interaction between...
