Speaker
Description
Channeling and coherent interactions of charged particles in crystals have been known since the 60s and used as a tool for material analysis by low-energy ion channeling and for the generation of linearly polarized γ-beams through coherent bremsstrahlung at electron accelerators. Here, we report on a series of experiments carried out at the MAinzer MIkrotron with the aim of investigating the electromagnetic radiation generated by 855 MeV electrons in straight and bent crystals [1,2]. The results have been critically compared to Monte Carlo simulations, showing a strong enhancement of emitted radiation if compared with standard bremsstrahlung. These results are relevant for crystal-based intense gamma sources, beam steering as well as for the generation of e.m. radiation in bent and periodically bent crystals, i.e. crystalline undulators. Furthermore, the intense channeling radiation could be exploited for the realization of crystal-based positron source for future colliders [3].
References
[1] L. Bandiera et al., Nucl. Instrum. Methods Phys. Res. B 355 (2015) 44.
[2] A. Sytov, L. Bandiera et al., Eur. Phys. J. C 77 (2017) 901.
[3] R.Chehab et al., Phys. Lett. B 525 (2002) 41.
