Demonstration of nonlinear-energy-spread compensation in relativistic electron bunches with corrugated structures

Abstract

High quality electron beams with flat distributions in both energy and current are critical for many accelerator-based scientific facilities such as free-electron lasers and MeV ultrafast electron diffraction and microscopes. In this Letter we report on using corrugated structures to compensate for the beam nonlinear energy chirp imprinted by the curvature of the radio-frequency field, leading to a significant reduction in beam energy spread. By using a pair of corrugated structures with orthogonal orientations, we show that the quadrupole wake fields which otherwise increase beam emittance can be effectively canceled. This work also extends the applications of corrugated structures to the low beam charge (a few pC) and low beam energy (a few MeV) regime and may have a strong impact in many accelerator-based facilities.

5 pages, 5 figures

References in corpus (5)

• Experimental Observation of Energy Modulation in Electron Beams Passing Through Terahertz Dielectric Wakefield Structures
• Experimental Demonstration of Energy Chirp Compensation by a Tunable Dielectric Based Structure
• Experimental demonstration of longitudinal beam phase space linearizer in a free-electron laser facility by corrugated structures
• Accelerator-based Single-shot Ultrafast Transmission Electron Microscope with Picosecond Temporal Resolution and Nanometer Spatial Resolution
• Reversible electron beam heating for suppression of microbunching instabilities at free-electron lasers

Cited by in corpus (15)

• Femtosecond relativistic electron beam with reduced timing jitter from THz-driven beam compression
• An Ultra-Compact X-Ray Free-Electron Laser
• Terahertz oscilloscope for recording time information of ultrashort electron beams
• Bunch Shaping in Electron Linear Accelerators
• Analytical Formulas for Short Bunch Wakes in a Flat Dechirper
• Energy Compression and Stabilization of Laser-Plasma Accelerators
• Few-femtosecond Electron Beam with THz-frequency Wakefield-driven Compression
• Coulomb-driven relativistic electron beam compression
• Electron-Terahertz Interaction in Dielectric-Lined Waveguide Structures for Electron Manipulation
• Proposals for gain cascading in single-pass of a free-electron laser oscillator
• Time-resolved Measurement of Quadrupole Wakefields in Corrugated Structures
• Bandwidth broadening of X-ray free electron laser pulses with the natural gradient of planar undulator
• Simulations of an energy dechirper based on dielectric lined waveguides
• Tapered helical undulator system for high efficiency energy extraction from a high brightness electron beam
• Wake Measurements of a Dechirper Jaw with Non-Zero Tilt Angle