# Hard X-Ray Phase-Contrast Laboratory Microscope Based on Three-Block Fresnel Zone Plate Interferometer

## TL;DR

This paper proposes a novel hard X-ray phase-contrast microscope using a three-block Fresnel zone plate interferometer, enabling laboratory-based imaging with low coherence requirements and optical magnification.

## Contribution

Introduction of a three-block Fresnel zone plate interferometer for hard X-ray phase-contrast imaging suitable for laboratory sources.

## Key findings

- Numerical simulations confirm effective image formation.
- The setup operates with low coherence requirements.
- Potential for laboratory hard X-ray phase-contrast microscopy.

## Abstract

A device based on a three-block Fresnel zone plate interferometer is proposed for hard X-ray phase-contrast imaging. The device combines a low requirement for the coherence of the initial radiation (the interferometer operates in the amplitude division mode) with an optical magnification of the image. A numerical simulation of the image formation is carried out, taking into account the limited source-interferometer distance, the size and spectral width of the X-ray source. The calculations show that the proposed set-up can be used as a phase-contrast microscope using laboratory hard X-ray sources.

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Source: https://tomesphere.com/paper/1907.01404