Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

New Geant4 model of channeling in crystals and its applications in modern physics

Jul 8, 2022, 7:05 PM
1h 25m
Bologna, Italy

Bologna, Italy

Palazzo della Cultura e dei Congressi
Poster Accelerators: Physics, Performance and R&D for future facilities Poster Session


Alexei Sytov (INFN, Sezione di Ferrara, Korea Institute of Science and Technology Information (KISTI))


We present the new simulation model of channeling of electrons and positrons implemented into Geant4. Geant4 [1] is a toolkit for the simulation of the passage of particles through matter. Channeling effect [2] is the effect of the penetration of charged particles through a monocrystal parallel to its atomic axes or planes. Coulomb scattering introduced in the model and based on the CRYSTALRAD [3] code makes it possible to simulate complicated trajectories of channeling electrons and positrons.

We present a Geant4 simulation example of an experimental setup including channeling physics inside and standard physics outside the crystal volume. We validate the model with the experimental data and CRYSTALRAD simulations. We discuss the following possible applications of our channeling model: 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.

[1] J.Allison et al., NIM A 835, 186-225 (2016).
[2] J. Lindhard, Mat. Fys. Medd. Dan. Vid. Selsk. 34 (14), 64 (1965).
[3] A. I. Sytov, V. V. Tikhomirov, and L. Bandiera, PRAB 22, 064601 (2019).

A. Sytov is supported by the European Commission (TRILLION, GA. 101032975). We acknowledge partial support of the INFN through the MC-INFN project and the CINECA award under the ISCRA initiative

In-person participation Yes

Primary author

Alexei Sytov (INFN, Sezione di Ferrara, Korea Institute of Science and Technology Information (KISTI))


Dr LAURA BANDIERA (Istituto Nazionale di Fisica Nucleare - Ferrara) Prof. Kihyeon Cho (KISTI) Prof. Giuseppe A. Pablo Cirrone (INFN Laboratori Nazionali del Sud) Prof. Susanna Guatelli (Centre For Medical Radiation Physics, University of Wollongong) Viktar Haurylavets Prof. Soonwook Hwang (KISTI) Prof. Vladimir Ivantchenko (CERN) Dr Luciano Pandola (INFN Laboratori Nazionali del Sud) Prof. Anatoly Rosenfeld (Centre for Medical Radiation Physics, University of Wollongong) Prof. Victor Tikhomirov

Presentation materials