The preliminary version of the Geant4 Baier-Katkov radiation model has been created! This model exploits the trajectory of a charged particle produced within the channeling model for the Baier-Katkov radiation integral along this trajectory. Some additional information about the Baier-Katkov method can be found in:
[1] V. N. Baier, V. M. Katkov, and V. M. Strakhovenko, Electromagnetic Processes at High Energies in Oriented Single Crystals (World Scientific, Singapore, 1998).
[2] A. I. Sytov, V. V. Tikhomirov, and L. Bandiera Phys. Rev. Acc. and Beams 22, 064601 (2019), DOI: 10.1103/PhysRevAccelBeams.22.064601