A Shack-Hartmann Sensor for Single-Shot Multi-Contrast Imaging with Hard X-rays

A Shack-Hartmann Sensor for Single-Shot Multi-Contrast Imaging with Hard X-rays

Bibliografiske detaljer
Parent link:Applied Sciences
Vol. 8, iss. 5.— 2018.— [737, 13 p.]
Institution som forfatter: Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение экспериментальной физики
Andre forfattere: Rolo Tomy D. S. Dos Santos, Reich S. Stefan, Karpov D. A. Dmitriy Andreevich, Gasilov S. V. Sergey Valentinovich, Kunka D. M. Danays Morejon, Fohtung E., Baumbakh T., Plech A. Anton
Summary:Title screen
An array of compound refractive X-ray lenses (CRL) with 20 × 20 lenslets, a focal distance of 20cm and a visibility of 0.93 is presented. It can be used as a Shack-Hartmann sensor for hard X-rays (SHARX) for wavefront sensing and permits for true single-shot multi-contrast imaging the dynamics of materials with a spatial resolution in the micrometer range, sensitivity on nanosized structures and temporal resolution on the microsecond scale. The object's absorption and its induced wavefront shift can be assessed simultaneously together with information from diffraction channels. In contrast to the established Hartmann sensors the SHARX has an increased flux efficiency through focusing of the beam rather than blocking parts of it. We investigated the spatiotemporal behavior of a cavitation bubble induced by laser pulses. Furthermore, we validated the SHARX by measuring refraction angles of a single diamond CRL, where we obtained an angular resolution better than 4 μrad.
Udgivet: 2018
Fag:
электронный ресурс
труды учёных ТПУ
X-ray lens
multi-contrast imaging
phase-contrast imaging
рентгеновская оптика
визуализация
Online adgang:https://doi.org/10.3390/app8050737
Format: Electronisk Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661149

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