Article ; Online: Fresnel zone plate development for x-ray radiography of hydrodynamic instabilities at the National Ignition Facility.
Applied optics
2020 Volume 59, Issue 34, Page(s) 10777–10785
Abstract: The study of Rayleigh-Taylor (RT) and Richtmyer-Meshkov (RM) instabilities in a planar geometry at high energy densities at the National Ignition Facility (NIF) requires high spatial resolution imaging. We demonstrate the potential of Fresnel zone plates ...
Abstract | The study of Rayleigh-Taylor (RT) and Richtmyer-Meshkov (RM) instabilities in a planar geometry at high energy densities at the National Ignition Facility (NIF) requires high spatial resolution imaging. We demonstrate the potential of Fresnel zone plates (FZPs) to achieve resolution that would unlock such studies. FZPs are circular aperiodic gratings that use diffraction to focus x rays and produce an image with high spatial resolution. Taking into account the NIF's challenging environment, we have designed a specific array of five FZPs for a zinc backlighter to take a radiograph of a target with 9 keV x rays. We measured a mean resolution for the FZP of 1.9µ |
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Language | English |
Publishing date | 2020-12-23 |
Publishing country | United States |
Document type | Journal Article |
ISSN | 1539-4522 |
ISSN (online) | 1539-4522 |
DOI | 10.1364/AO.408569 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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