A Shack-Hartmann Sensor for Single-Shot Multi-Contrast Imaging with Hard X-rays; Applied Sciences; Vol. 8, iss. 5

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

Chi tiết về thư mục
Parent link:	Applied Sciences Vol. 8, iss. 5.— 2018.— [737, 13 p.]
Tác giả của công ty:	Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение экспериментальной физики
Tác giả khác:	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
Tóm tắt:	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.
Ngôn ngữ:	Tiếng Anh
Được phát hành:	2018
Những chủ đề:	электронный ресурс труды учёных ТПУ X-ray lens multi-contrast imaging phase-contrast imaging рентгеновская оптика визуализация
Truy cập trực tuyến:	https://doi.org/10.3390/app8050737
Định dạng:	Điện tử Chương của sách
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661149

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