In-line Bragg magnifier based on V-shaped germanium crystals

J 2011

In-line Bragg magnifier based on V-shaped germanium crystals

VAGOVIČ, P.; D. KORYTÁR; Petr MIKULÍK; A. CECILIA; C. FERRARI et al.

Základní údaje

Originální název

In-line Bragg magnifier based on V-shaped germanium crystals

Autoři

VAGOVIČ, P.; D. KORYTÁR; Petr MIKULÍK; A. CECILIA; C. FERRARI; Y. YANG; D. HANSCHKE; E. HAMANN; D. PELLICCIA; T.A. LAFFORD; M. FIEDERLE a T. BAUMBACH

Vydání

Journal of Synchrotron Radiation, 2011, 0909-0495

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10302 Condensed matter physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.726

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/11:00054741

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1107/S090904951102989X

UT WoS

000294821600011

Klíčová slova anglicky

x-ray optics; x-ray diffraction; monochromators

Štítky

AKR, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 20. 4. 2012 11:54, Ing. Andrea Mikešková

Anotace

V originále

In this work an X-ray imaging system based on a recently developed in-line two-dimensional Bragg magnifier composed of two monolithic V-shaped crystals made of dislocation-free germanium is presented. The channel-cut crystals were used in one-dimensional and in two-dimensional (crossed) configurations in imaging applications and allowed measurement of phase-contrast radiograms both in the edge-enhanced and in the holographic regimes. The measurement of the phase gradient in two orthogonal directions is demonstrated. The effective pixel size attained was 0.17 um in the one-dimensional configuration and 0.5 um in the two-dimensional setting, offering a twofold improvement in spatial resolution over devices based on silicon. These results show the potential for applying Bragg magnifiers to imaging soft matter at high resolution with reduced dose owing to the higher efficiency of Ge compared with Si.

Návaznosti

MSM0021622410, záměr

Název: Fyzikální a chemické vlastnosti pokročilých materiálů a struktur

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Fyzikální a chemické vlastnosti pokročilých materiálů a struktur

Citovat

VAGOVIČ, P.; D. KORYTÁR; Petr MIKULÍK; A. CECILIA; C. FERRARI; Y. YANG; D. HANSCHKE; E. HAMANN; D. PELLICCIA; T.A. LAFFORD; M. FIEDERLE a T. BAUMBACH. In-line Bragg magnifier based on V-shaped germanium crystals. Journal of Synchrotron Radiation. 2011, roč. 18, č. 1, s. 753-760. ISSN 0909-0495. Dostupné z: https://doi.org/10.1107/S090904951102989X.

@article{964884,
   author = {Vagovič, P. and Korytár, D. and Mikulík, Petr and Cecilia, A. and Ferrari, C. and Yang, Y. and Hanschke, D. and Hamann, E. and Pelliccia, D. and Lafford, T.A. and Fiederle, M. and Baumbach, T.},
   article_number = {1},
   doi = {https://doi.org/10.1107/S090904951102989X},
   keywords = {x-ray optics; x-ray diffraction; monochromators},
   language = {eng},
   issn = {0909-0495},
   journal = {Journal of Synchrotron Radiation},
   title = {In-line Bragg magnifier based on V-shaped germanium crystals},
   url = {http://scripts.iucr.org/cgi-bin/paper?mo5017},
   volume = {18},
   year = {2011}
}

TY  - JOUR
ID  - 964884
AU  - Vagovič, P. - Korytár, D. - Mikulík, Petr - Cecilia, A. - Ferrari, C. - Yang, Y. - Hanschke, D. - Hamann, E. - Pelliccia, D. - Lafford, T.A. - Fiederle, M. - Baumbach, T.
PY  - 2011
TI  - In-line Bragg magnifier based on V-shaped germanium crystals
JF  - Journal of Synchrotron Radiation
VL  - 18
IS  - 1
SP  - 753-760
EP  - 753-760
SN  - 09090495
KW  - x-ray optics
KW  - x-ray diffraction
KW  - monochromators
UR  - http://scripts.iucr.org/cgi-bin/paper?mo5017
L2  - http://scripts.iucr.org/cgi-bin/paper?mo5017
N2  - In this work an X-ray imaging system based on a recently developed in-line two-dimensional Bragg magnifier composed of two monolithic V-shaped crystals made of dislocation-free germanium is presented. The channel-cut crystals were used in one-dimensional and in two-dimensional (crossed) configurations in imaging applications and allowed measurement of phase-contrast radiograms both in the edge-enhanced and in the holographic regimes. The measurement of the phase gradient in two orthogonal directions is demonstrated. The effective pixel size attained was 0.17 um in the one-dimensional configuration and 0.5 um in the two-dimensional setting, offering a twofold improvement in spatial resolution over devices based on silicon. These results show the potential for applying Bragg magnifiers to imaging soft matter at high resolution with reduced dose owing to the higher efficiency of Ge compared with Si.
ER  -

VAGOVIČ, P.; D. KORYTÁR; Petr MIKULÍK; A. CECILIA; C. FERRARI; Y. YANG; D. HANSCHKE; E. HAMANN; D. PELLICCIA; T.A. LAFFORD; M. FIEDERLE a T. BAUMBACH. In-line Bragg magnifier based on V-shaped germanium crystals. \textit{Journal of Synchrotron Radiation}. 2011, roč.~18, č.~1, s.~753-760. ISSN~0909-0495. Dostupné z: https://doi.org/10.1107/S090904951102989X.

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