Steering and radiation effects in oriented crystals and their applications implementation into geant4
Crystalline structure is a unique environment for strong-field QED effects involving both high-energy charged particles and photons. A small piece of crystal material could be used as an intense source of X- and gamma-ray radiation, a positron source, a beam manipulation instrument, a compact detector and a compact wake-field accelerator as well. Consequently, a crystal could be useful for a wide range of applications in accelerator physics, high-energy frontier physics, nuclear physics, cosmic-ray detectors, dark matter search and radiation therapy.

The implementation of both physics of electromagnetic processes in oriented crystals and the design of specific applications of crystalline effects into Geant4 simulation toolkit as Extended Examples to bring them to a large scientific and industrial community and under a free Geant4 license is the main goal of the project.

The implementation of the following innovative applications into Geant4 will be mainly focused on:
1. Crystalline deflector to extract a charged particle beam from an accelerator (electron synchrotron, hadron collider) to supply fixed-target experiments by an intense low-emittance beam.
2. Crystalline source of intense coherent hard X-ray and gamma radiation, crystalline undulator.
3. Crystal-based hybrid positron source for both linear and circular e+e- colliders (ILC, FCC-ee) as well as for muon colliders.

The outgoing research phase of this MSCA-GF project at SLAC National Accelerator Laboratory as well as training at Stanford University and Google and participation in high-tech Silicon Valley exhibitions will bring the ER to a considerably higher level of competence. During the incoming phase at INFN Division of Ferrara supplemented by the secondments to DESY and IJClab the ER will finally reach his professional maturity and independence as well as will acquire a lot of new ideas to submit them as ERC proposals or to create high-tech startups and a lot of professional contacts to realize them.