Electromagnetic processes of charged particles interaction with oriented crystals provide a wide variety of innovative applications such as beam steering, crystal-based extraction/collimation of leptons and hadrons in an accelerator, a fixed-target experiment on magnetic and electric dipole moment measurement, X-ray and gamma radiation source for radiotherapy and nuclear physics and a positron source for lepton and muon colliders as well as plasma acceleration in the crystal media. One of the main challenges is to develop an up-to-date, universal and fast simulation tool to simulate these applications.
In this seminar, the implementation of a new simulation model of electromagnetic processes in oriented crystals into Geant4  is presented. The model is validated with the experimental data. Its advantages and perspectives for the applications of oriented crystals mentioned above are also discussed.
 J.Allison et al., NIM A 835, 186-225 (2016).
A. Sytov is supported by the European Commission (TRILLION, GA. 101032975). He acknowledges partial support of the INFN through the MC-INFN project and the CINECA award under the ISCRA initiative, for the availability of high performance computing resources and support. This work is also supported by the National Supercomputing Center with supercomputing resources including technical support (KSC-2022-CHA-0003).