X-ray collimation by crystals with precise parabolic holes
based on diffractive-refractive optics

J 2011

X-ray collimation by crystals with precise parabolic holes based on diffractive-refractive optics

OBERTA, P.; Petr MIKULÍK; M. KITTLER a J. HRDÝ

Základní údaje

Originální název

X-ray collimation by crystals with precise parabolic holes based on diffractive-refractive optics

Autoři

OBERTA, P.; Petr MIKULÍK; M. KITTLER a J. HRDÝ

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

Kód RIV

RIV/00216224:14310/11:00054739

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1107/S0909049511009083

UT WoS

000291401900026

Klíčová slova anglicky

diffractive-refractive optics; x-ray optics; x-ray diffraction

Štítky

AKR, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 20. 4. 2012 11:50, Ing. Andrea Mikešková

Anotace

V originále

Two crystals with precise parabolic holes were used to demonstrate sagittal beam collimation by means of a diffractive-refractive double-crystal monochromator. A new approach is introduced and beam collimation is demonstrated. Two Si(333) crystals with an asymmetry angle of [alpha] = 15 deg were prepared and arranged in a dispersive position (+,-,-,+). Based on theoretical calculations, this double-crystal set-up should provide tunable beam collimation within an energy range of 6.3-18.8 keV ([Theta]B = 71-18.4 deg). An experiment study was performed on BM05 at ESRF. Using 8.97 keV energy, the beam profile at various distances was measured. The experimental results are in good agreement with theoretical predictions. Owing to insufficient harmonic suppression, the collimated (333) beam was overlapped by horizontally diverging (444) and (555) beams.

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

OBERTA, P.; Petr MIKULÍK; M. KITTLER a J. HRDÝ. X-ray collimation by crystals with precise parabolic holes based on diffractive-refractive optics. Journal of Synchrotron Radiation. 2011, roč. 18, č. 1, s. 522-526. ISSN 0909-0495. Dostupné z: https://doi.org/10.1107/S0909049511009083.

@article{964881,
   author = {Oberta, P. and Mikulík, Petr and Kittler, M. and Hrdý, J.},
   article_number = {1},
   doi = {https://doi.org/10.1107/S0909049511009083},
   keywords = {diffractive-refractive optics; x-ray optics; x-ray diffraction},
   language = {eng},
   issn = {0909-0495},
   journal = {Journal of Synchrotron Radiation},
   title = {X-ray collimation by crystals with precise parabolic holes based on diffractive-refractive optics},
   url = {http://scripts.iucr.org/cgi-bin/paper?S0909049511009083},
   volume = {18},
   year = {2011}
}

TY  - JOUR
ID  - 964881
AU  - Oberta, P. - Mikulík, Petr - Kittler, M. - Hrdý, J.
PY  - 2011
TI  - X-ray collimation by crystals with precise parabolic holes based on diffractive-refractive optics
JF  - Journal of Synchrotron Radiation
VL  - 18
IS  - 1
SP  - 522-526
EP  - 522-526
SN  - 09090495
KW  - diffractive-refractive optics
KW  - x-ray optics
KW  - x-ray diffraction
UR  - http://scripts.iucr.org/cgi-bin/paper?S0909049511009083
L2  - http://scripts.iucr.org/cgi-bin/paper?S0909049511009083
N2  - Two crystals with precise parabolic holes were used to demonstrate sagittal beam collimation by means of a diffractive-refractive double-crystal monochromator. A new approach is introduced and beam collimation is demonstrated. Two Si(333) crystals with an asymmetry angle of [alpha] = 15 deg were prepared and arranged in a dispersive position (+,-,-,+). Based on theoretical calculations, this double-crystal set-up should provide tunable beam collimation within an energy range of 6.3-18.8 keV ([Theta]B = 71-18.4 deg). An experiment study was performed on BM05 at ESRF. Using 8.97 keV energy, the beam profile at various distances was measured. The experimental results are in good agreement with theoretical predictions. Owing to insufficient harmonic suppression, the collimated (333) beam was overlapped by horizontally diverging (444) and (555) beams.
ER  -

OBERTA, P.; Petr MIKULÍK; M. KITTLER a J. HRDÝ. X-ray collimation by crystals with precise parabolic holes based on diffractive-refractive optics. \textit{Journal of Synchrotron Radiation}. 2011, roč.~18, č.~1, s.~522-526. ISSN~0909-0495. Dostupné z: https://doi.org/10.1107/S0909049511009083.

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