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arXiv · 2606.26198

Single-Shot Intensity-Correlation Diffractive X-ray Imaging of ICF Plasmas

Kenan Qu·Daniel Bhatti·Nathaniel J. Fisch
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Abstract

X-ray radiography of inertial confinement fusion plasmas is currently limited to several-micron resolution by geometric blur, diffraction, and photon-throughput tradeoffs. We propose single-shot intensity-correlation diffractive imaging (IDI) as a lensless route to submicron plasma turbulence measurements under low-self-emission conditions. Rather than relying on physical apertures, IDI reconstructs plasma morphology by Fourier transforming the spatial correlations of chaotic far-field speckles via the Hanbury Brown-Twiss effect. The Fourier phase is retrieved by applying bispectral closure-phase constraints derived from third-order intensity correlations. We demonstrate this submicron capability in a numerical simulation using a $50~\mathrm{keV}$ x-ray probe scattered by a spiral plasma structure.

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Kenan Qu, Daniel Bhatti, Nathaniel J. Fisch. 2026-06-24. Single-Shot Intensity-Correlation Diffractive X-ray Imaging of ICF Plasmas. https://arxiv.org/abs/2606.26198

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