Hard x-ray phase contrast imaging using single absorption grating and hybrid semiconductor pixel detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F10%3A00172893" target="_blank" >RIV/68407700:21670/10:00172893 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Hard x-ray phase contrast imaging using single absorption grating and hybrid semiconductor pixel detector

Popis výsledku v původním jazyce

A method for x-ray phase contrast imaging is introduced in which only one absorption grating and a microfocus x-ray source in a tabletop setup are used. The method is based on precise subpixel position determination of the x-ray pattern projected by thegrating directly from the pattern image. For retrieval of the phase gradient and absorption image (both images obtained from one exposure), it is necessary to measure only one projection of the investigated object. Thus, our method is greatly simplifiedcompared with the phase-stepping method and our method can significantly reduce the time-consuming scanning and possibly the dose. Furthermore, the technique works with a polychromatic spectrum and gives ample variability in object magnification. Consequently, the approach can open the way to widespread application of phase contrast imaging, e.g., into clinical practice. The experimental results on a simple testing object as well as on complex biological samples are presented.

Název v anglickém jazyce

Hard x-ray phase contrast imaging using single absorption grating and hybrid semiconductor pixel detector

Popis výsledku anglicky

A method for x-ray phase contrast imaging is introduced in which only one absorption grating and a microfocus x-ray source in a tabletop setup are used. The method is based on precise subpixel position determination of the x-ray pattern projected by thegrating directly from the pattern image. For retrieval of the phase gradient and absorption image (both images obtained from one exposure), it is necessary to measure only one projection of the investigated object. Thus, our method is greatly simplifiedcompared with the phase-stepping method and our method can significantly reduce the time-consuming scanning and possibly the dose. Furthermore, the technique works with a polychromatic spectrum and gives ample variability in object magnification. Consequently, the approach can open the way to widespread application of phase contrast imaging, e.g., into clinical practice. The experimental results on a simple testing object as well as on complex biological samples are presented.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

<a href="/cs/project/LA08015" target="_blank" >LA08015: Spolupráce ČR s CERN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Review of Scientific Instruments

ISSN

0034-6748

e-ISSN

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Svazek periodika

81

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

000285006500020

EID výsledku v databázi Scopus

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