Development towards high-resolution kHz-speed rotation-free volumetric imaging

TL;DR

This paper demonstrates high-speed, high-resolution, rotation-free 3D imaging using X-ray multi-projection imaging (XMPI), enabling detailed visualization of dynamic samples like melted aluminum at up to 1000 frames per second.

Contribution

The paper presents the development and testing of a high-speed XMPI system capable of 3D imaging at up to 3000 frames per second, advancing the technique's potential for dynamic sample analysis.

Findings

Achieved 1000 fps imaging of melted aluminum with 8 μm resolution.

Demonstrated the capability of XMPI at up to 3000 fps.

Validated the potential of XMPI for real-time 3D imaging of dynamic processes.

Abstract

X-ray multi-projection imaging (XMPI) provides rotation-free 3D movies of optically opaque samples. The absence of rotation enables superior imaging speed and preserves fragile sample dynamics by avoiding the shear forces introduced by conventional rotary tomography. Here, we present our XMPI observations at the ID19 beamline (ESRF, France) of 3D dynamics in melted aluminum with 1000 frames per second and 8 $\mu$m resolution per projection using the full dynamical range of our detectors. Since XMPI is a method under development, we also provide different tests for the instrumentation of up to 3000 frames per second. As the flux of X-ray sources grows globally, XMPI is a promising technique for current and future X-ray imaging instruments.