It has been known since decades that the alignment of a beam of high-energy electrons with particular crystal directions involves a significant increase of bremsstrahlung radiation emission. This enhancement lies at the conceptual foundation of innovative positron source schemes for future lepton colliders. In particular, the so-called hybrid scheme makes use of a heavy-metal radiator in crystalline form, which is then followed by an amorphous metallic converter for positron generation from electrons by means of a two-step electromagnetic process. This work presents the most recent simulation results obtained on the development of a hybrid positron source for the FCC-ee from the standpoint of the features of both the crystalline radiator and the amorphous converter.
Radiation in oriented crystals: Innovative application to future positron sources / Soldani, Mattia; Alharthi, Fahad; Bandiera, Laura; Canale, Nicola; Cavoto, Gianluca; Chaikovska, Iryna; Chehab, Robert; Guidi, Vincenzo; Haurylavets, Viktar; Mazzolari, Andrea; Negrello, Riccardo; Paternò, Gianfranco; Romagnoni, Marco; Sytov, Alexei; Tikhomirov, Victor. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 1058:(2023), p. 168828. [10.1016/j.nima.2023.168828]
Radiation in oriented crystals: Innovative application to future positron sources
Cavoto, GianlucaMembro del Collaboration Group
;
2023
Abstract
It has been known since decades that the alignment of a beam of high-energy electrons with particular crystal directions involves a significant increase of bremsstrahlung radiation emission. This enhancement lies at the conceptual foundation of innovative positron source schemes for future lepton colliders. In particular, the so-called hybrid scheme makes use of a heavy-metal radiator in crystalline form, which is then followed by an amorphous metallic converter for positron generation from electrons by means of a two-step electromagnetic process. This work presents the most recent simulation results obtained on the development of a hybrid positron source for the FCC-ee from the standpoint of the features of both the crystalline radiator and the amorphous converter.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
