Extremely Dense Gamma-Ray Pulses in Electron Beam-Multifoil Collisions

Autor: Zan Nie, Chan Joshi, Chaojie Zhang, Pablo San Miguel Claveria, Hiroki Fujii, Brendan O'Shea, Alexander Knetsch, Claudio Emma, John R. Cary, Henrik Ekerfelt, Mark Hogan, Frederico Fiuza, Maitreyi Sangal, Sebastien Corde, Archana Sampath, Olena Kononenko, Robert Ariniello, Yipeng Wu, Christoph H. Keitel, Valentina Lee, D. Storey, Matteo Tamburini, Michael Litos, Xavier Davoine, Max Gilljohann, Xinlu Xu, Laurent Gremillet, K. A. Marsh, J. Ryan Peterson
Přispěvatelé: Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université Paris-Saclay, Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Accelerator Physics (physics.acc-ph)
Photon
Research group A. Di Piazza – Division C. H. Keitel
Astrophysics::High Energy Astrophysical Phenomena
[PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph]
General Physics and Astronomy
FOS: Physical sciences
electron: relativistic
Electron
01 natural sciences
7. Clean energy
Collimated light
law.invention
High Energy Physics - Phenomenology (hep-ph)
law
0103 physical sciences
Plasma and Beam Physics
synchrotron radiation: emission
electron: beam
010306 general physics
photon: beam
Physics
quantum electrodynamics: strong field
collimator
Gamma ray
beam focusing
Physics - Plasma Physics
Synchrotron
[PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph]
3. Good health
Plasma Physics (physics.plasm-ph)
High Energy Physics - Phenomenology
gamma ray: emission
Transition radiation
electron: scattering
Cathode ray
Physics::Accelerator Physics
Physics - Accelerator Physics
transition radiation
Atomic physics
Beam (structure)
Zdroj: Phys.Rev.Lett.
Phys.Rev.Lett., 2021, 126 (6), pp.064801. ⟨10.1103/PhysRevLett.126.064801⟩
Physical Review Letters
DOI: 10.1103/PhysRevLett.126.064801⟩
Popis: Sources of high-energy photons have important applications in almost all areas of research. However, the photon flux and intensity of existing sources is strongly limited for photon energies above a few hundred keV. Here we show that a high-current ultrarelativistic electron beam interacting with multiple submicrometer-thick conducting foils can undergo strong self-focusing accompanied by efficient emission of gamma-ray synchrotron photons. Physically, self-focusing and high-energy photon emission originate from the beam interaction with the near-field transition radiation accompanying the beam-foil collision. This near field radiation is of amplitude comparable with the beam self-field, and can be strong enough that a single emitted photon can carry away a significant fraction of the emitting electron energy. After beam collision with multiple foils, femtosecond collimated electron and photon beams with number density exceeding that of a solid are obtained. The relative simplicity, unique properties, and high efficiency of this gamma-ray source open up new opportunities for both applied and fundamental research including laserless investigations of strong-field QED processes with a single electron beam.
Comment: 17 pages, 11 figures, matches published article
Databáze: OpenAIRE
Externí odkaz: