Knife-edge based measurement of the 4D transverse phase space of electron beams with picometer-scale emittance

Abstract

Precise manipulation of high brightness electron beams requires detailed knowledge of the particle phase space shape and evolution. As ultrafast electron pulses become brighter, new operational regimes become accessible with emittance values in the picometer range, with enormous impact on potential scientific applications. Here we present a new characterization method for such beams and demonstrate experimentally its ability to reconstruct the 4D transverse beam matrix of strongly correlated electron beams with sub-nanometer emittance and sub-micrometer spot size, produced with the HiRES beamline at LBNL. Our work extends the reach of ultrafast electron accelerator diagnostics into picometer-range emittance values, opening the way to complex nanometer-scale electron beam manipulation techniques.

References in corpus (7)

• Dielectric Laser Acceleration
• Direct measurement of sub-10 fs relativistic electron beams with ultralow emittance
• Compact x-ray source based on burst-mode inverse Compton scattering at 100 kHz
• Terahertz-based attosecond metrology of relativistic electron beams
• Terahertz streaking of few-femtosecond relativistic electron beams
• Ultrafast Relativistic Electron Nanoprobes
• Accelerator-based Single-shot Ultrafast Transmission Electron Microscope with Picosecond Temporal Resolution and Nanometer Spatial Resolution

Cited by in corpus (7)

• Ultrafast Relativistic Electron Nanoprobes
• Transverse phase space tomography in the CLARA accelerator test facility using image compression and machine learning
• Transverse phase space characterisation in the CLARA FE accelerator test facility at Daresbury Laboratory
• Relativistic ultrafast electron diffraction at high repetition rates
• Characterizing ultra-low emittance electron beams using structured light fields
• Ultrafast Electron Diffraction: Visualizing Dynamic States of Matter
• All-optical source size and emittance measurements of laser-accelerated electron beams