Journal ArticleDOI
A high resolution monochromator covering wide ultraviolet spectral ranges with a single grating
G Naletto,G Tondello +1 more
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TLDR
In this paper, a new configuration for a wide ultraviolet range high resolution monochromator has been analyzed, which consists of a first off-axis paraboloidal mirror collimating the radiation beam from the source, followed by a couple of plane optical elements, a mirror and a grating, constituting the dispersive system, and by a second offboard mirror focusing a selected portion of the dispersed radiation beam on a fixed exit slit.Abstract:
A new configuration for a wide ultraviolet range high resolution monochromator has been analysed. It consists of a first off-axis paraboloidal mirror collimating the radiation beam from the source, followed by a couple of plane optical elements, a mirror and a grating, constituting the dispersive system, and by a second off-axis paraboloidal mirror focusing a selected portion of the dispersed radiation beam on a fixed exit slit. Since in the extreme ultraviolet region it is necessary to use the optical elements in grazing incidence to have a good reflectivity, the two paraboloidal mirrors can be used in the so-called sagittal focusing to minimize the slope error induced aberrations in the dispersive plane. As an example, the monochromator performances when applied to a synchrotron radiation source in the range 250-1250 eV (9.9-49.6 AA) are shown.read more
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Journal ArticleDOI
Performance of the grating-crystal monochromator of the ALOISA beamline at the Elettra Synchrotron
Luca Floreano,Giampiero Naletto,Dean Cvetko,Roberto Gotter,M. Malvezzi,L Marassi,Alberto Morgante,A. Santaniello,Alberto Verdini,F. Tommasini,Giuseppe Tondello +10 more
TL;DR: In this article, a new monochromator has been designed and realized for this multipurpose beamline: it makes use of a channel-cut Si crystal dispersive element for the 3-8 keV range and of a plane mirror-plane grating element for 200-2000 eV range.
Journal ArticleDOI
Current status of the TwinMic beamline at Elettra: a soft X-ray transmission and emission microscopy station.
TL;DR: The current status of the TwinMic beamline at Elettra synchrotron light source, that hosts the European twin X-ray microscopy station, is reported and the implementation of coherent diffractive imaging modalities and ptychography is ongoing.
Journal ArticleDOI
Wavefront preserving X-ray optics for Synchrotron and Free Electron Laser photon beam transport systems
Daniele Cocco,Gregory M. Cutler,Manuel Sanchez del Rio,Luca Rebuffi,X. Shi,Kazuhide Yamauchi +5 more
TL;DR: In this paper , the authors present the current state of the art of mirrors, gratings, crystals, lenses, diagnostics, and simulation tools, and a look ahead at what would be achievable in the next decade will give the reader an idea on the search for an almost ideal photon transport system and how the path toward experiments.
Proceedings ArticleDOI
A plane grating with single-layer coating for the sub-nanometer wavelength range
TL;DR: A diffraction plane grating with single-layer coating able to reach photon energy up to 3 keV (possibly 4 keV) was adopted at the TwinMic beamline at ELETTRA as discussed by the authors.
Proceedings ArticleDOI
Soft x-ray (2 to 6 keV) spectroscopy using gratings at extreme grazing incidence
TL;DR: In this article, the performance of ion etched blazes gratings as components for soft x-ray spectroscopy was investigated and it was shown that the spectral resolution of the gratings shows essentially almost slit limited line widths.
References
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Journal ArticleDOI
Low-energy x-ray interaction coefficients: Photoabsorption, scattering, and reflection: E = 100–2000 eV Z = 1–94
TL;DR: The primary low-energy x-ray interactions within matter are photoabsorption and coherent scattering, which can be efficiently described for photon energies outside the threshold regions by using atomic scattering factors as mentioned in this paper.
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The plane grating and elliptical mirror: A new optical configuration for monochromators
TL;DR: In this article, an optimal focussing kinematically simple two-element optics for plane grating monochromators is described, which is used to monochromeise synchrotron radiation in the soft X-ray region.
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Ultrasoft-X-Ray Reflection, Refraction, and Production of Photoelectrons (100-1000-eV Region)
Journal ArticleDOI
Concept and design procedure for cylindrical element monochromators for synchrotron radiation
TL;DR: In this paper, a soft X-ray grating monochromator with cylindrical optical elements was proposed, which not only offers high resolving power and transmission, but also has other advantages over the conventional designs.
Journal ArticleDOI
Plane grating monochromators for synchrotron radiation
TL;DR: In this article, the general background and theoretical basis of plane grating monochromators (PGMs) is reviewed and the particular case of grazing incidence PGMs suitable for use with synchrotron radiation is considered in detail.