@article{b67f96fba5f548ec9afdc3741bf99f57,
title = "Theory and design consideration of a THz superradiant waveguide FEL",
abstract = "We present theoretical analysis and design considerations of a THz superradiant FEL. We derive analytical expressions for the spectral parameter of THz radiation, emitted superradiantly in a rectangular waveguide using a Longitudinal Section Magnetic mode expansion. The results compare well with numerical simulations using UCLA GPTFEL code. GPT simulations of the accelerator e-beam transport show that the chirp provided by a hybrid photocathode RF gun, can produce tight bunching at the undulator site below (Formula presented.) = 100fs. This enables intense superradiant emission up to 3THz, limited by the beam bunching factor. Phase-space analysis of the beam transport indicates that keeping the beam bunching parameter small enough for higher THz frequency operation is limited by the energy spread of the beam in the gun.",
keywords = "FEL, GPTFEL, THz, bunched beam, coherent undulator radiation, hybrid photocathode gun, superradiance, waveguide LSM modes",
author = "Amir Weinberg and Avraham Gover and Ariel Nause and Aharon Friedman and Reuven Ianconescu and Andrew Fisher and Pietro Musumeci and Atsushi Fukasawa and James Rosenzweig",
note = "Publisher Copyright: Copyright {\textcopyright} 2024 Weinberg, Gover, Nause, Friedman, Ianconescu, Fisher, Musumeci, Fukasawa and Rosenzweig.",
year = "2024",
doi = "10.3389/fphy.2024.1385314",
language = "אנגלית",
volume = "12",
journal = "Frontiers in Physics",
issn = "2296-424X",
publisher = "Frontiers Media SA",
}