Single shot phase contrast imaging using laser-produced Betatron x-ray beams

Abstract

Development of x-ray phase contrast imaging applications with a laboratory scale source have been limited by the long exposure time needed to obtain one image. We demonstrate, using the Betatron x-ray radiation produced when electrons are accelerated and wiggled in the laser-wakefield cavity, that a high quality phase contrast image of a complex object (here, a bee), located in air, can be obtained with a single laser shot. The Betatron x-ray source used in this proof of principle experiment has a source diameter of 1.7 microns and produces a synchrotron spectrum with critical energy E_c=12.3 +- 2.5 keV and 10^9 photons per shot in the whole spectrum.

arXiv comment3 pages, 3 figures

References in corpus (1)

• Demonstration of the synchrotron-type spectrum of laser-produced Betatron radiation

Cited by in corpus (18)

• Femtosecond x rays from laser-plasma accelerators
• Developments in laser-driven plasma accelerators
• A bremsstrahlung gamma-ray source based on stable ionization injection of electrons into a laser wakefield accelerator
• Quantitative X-Ray Phase-Contrast Microtomography from a Compact Laser Driven Betatron Source
• Physics of nanocoulomb-class electron beams in laser-plasma wakefields
• Ultrafast Imaging of Laser Driven Shock Waves using Betatron X-rays from a Laser Wakefield Accelerator
• Dual-energy electron beams from a compact laser-driven accelerator
• Hard X-rays from laser-wakefield accelerators in density tailored plasmas
• Mapping the X-Ray Emission Region in a Laser-Plasma Accelerator
• X-ray phase-contrast imaging for laser-induced shock waves
• Bright betatron radiation from direct-laser-accelerated electrons at moderate relativistic laser intensity
• Computationally efficient methods for modelling laser wakefield acceleration in the blowout regime
• Enhancement of betatron X-rays through asymmetric laser wakefield generated in transverse density gradients
• Generation of attosecond electron bunches and X-ray pulses from few-cycle femtosecond laser pulses
• Research towards high-repetition rate laser-driven X-ray sources for imaging applications
• Effects of Laser Polarization and Color on Hybrid Laser Wakefield and Direct Acceleration
• Betatron emission as a diagnostic for injection and acceleration mechanisms in laser-plasma accelerators
• Tunable X-ray source by Thomson scattering during laser-wakefield acceleration