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One-dimensional hard x-ray field retrieval using a moveable structure
We present a technique that allows measuring the field of an x-ray line focus using far-field intensity measurements only. One-dimensional phase retrieval with transverse translation diversity is used to recover a hard x-ray beam focused by a compound kinoform lens. The reconstruction is found to be...
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Published in: | Optics express 2010-08, Vol.18 (17), p.18374-18382 |
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Main Authors: | , , , , , , , |
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container_end_page | 18382 |
container_issue | 17 |
container_start_page | 18374 |
container_title | Optics express |
container_volume | 18 |
creator | Guizar-Sicairos, Manuel Evans-Lutterodt, Kenneth Isakovic, Abdel F Stein, Aaron Warren, John B Sandy, Alec R Narayanan, Suresh Fienup, James R |
description | We present a technique that allows measuring the field of an x-ray line focus using far-field intensity measurements only. One-dimensional phase retrieval with transverse translation diversity is used to recover a hard x-ray beam focused by a compound kinoform lens. The reconstruction is found to be in good agreement with independent knife-edge scan measurements taken at separated planes. The approach avoids the need for measuring the beam profile at focus and allows narrower beams to be measured than the traditional knife-edge scan. |
doi_str_mv | 10.1364/OE.18.018374 |
format | article |
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source | EZB Electronic Journals Library |
subjects | Algorithms BEAM PROFILES BNL HARD X RADIATION Image Processing, Computer-Assisted - instrumentation Image Processing, Computer-Assisted - methods Lasers Microscopy, Electron, Transmission - instrumentation Microscopy, Electron, Transmission - methods NANOSCIENCE AND NANOTECHNOLOGY Scattering, Radiation Ultraviolet Rays X-Rays |
title | One-dimensional hard x-ray field retrieval using a moveable structure |
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