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Beam Dynamics for a High Field C-Band Hybrid Photoinjectorстатья
- Авторы: Faillace Luigi, Agustsson Ronald, Behtouei Mostafa, Bosco Fabio, Carillo Martina, Fukasawa Atsushi, Gadjev Ivan, Giribono Anna, Giuliano Lucia, Kutsaev Sergey, Majernik Nathan, Migliorati Mauro, Mostacci Andrea, Murokh Alex, Palumbo Luigi, Rosenzweig James, Spataro Bruno, Tantawi Sami, Vaccarezza Cristina, Williams Oliver
- Сборник: IPAC 2021 - Proceedings of the 12th International Particle Accelerator Conference, Campinas, Brazil
- Серия: International Particle Accelerator Conference
- Год издания: 2021
- Издательство: Joint Accelerator Conferences Website Publishing
- Местоположение издательства: Geneva, Switzerland
- Первая страница: 2714
- Последняя страница: 2717
- DOI: 10.18429/JACOW-IPAC2021-WEPAB051
- Аннотация: In this paper, we present a new class of a hybrid pho-toinjector in C-Band. This project is the effort result ofa UCLA/Sapienza/INFN-LNF/RadiaBeam collaboration.This device is an integrated structure consisting of an initialstanding-wave 2.5-cell gun connected to a traveling-wavesection at the input coupler. Such a scheme nearly avoidspower reflection back to the klystron, removing the need fora high-power circulator. It also introduces strong velocitybunching due to a 90° phase shift in the accelerating field. Arelatively high cathode electric field of 120 MV/m producesa 4 MeV beam with∼20 MW input RF power in a smallfoot-print. The beam transverse dynamics are controlledwith a∼0.27 T focusing solenoid. We show the simula-tion results of the RF/magnetic design and the optimizedbeam dynamics that shows 6D phase space compensationat 250 pC. Proper beam shaping at the cathode yields a0.5 mm-mrad transverse emittance. A beam waist occurssimultaneously with a longitudinal focus of < 400 fs rmsand peak current >600 A. We discuss application of this in-jector to an Inverse-Compton Scattering system and presentcorresponding start-to-end beam dynamics simulations.
- Добавил в систему: Куцаев Сергей Викторович