Results 301 to 310 of about 1,914,697 (336)
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X-Ray Optics: Imperfections of Optical Flats and Their Effect on the Reflection of X-Rays
Journal of the Optical Society of America, 1949It has been observed that some stray light (x-rays) is thrown into the neighborhood of the focus obtained if x-rays are focused by a bent optical flat. Most of this extra light is due to imperfections of the optical flats, while halation, Fresnel diffraction at the slits and air scattering make only minor contributions.
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Progress and prospects in nonlinear extreme-ultraviolet and X-ray optics and spectroscopy
Nature Reviews Physics, 2023M. Chergui +4 more
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1981
Abstract : This final scientific report covers research activities on X-Ray Optics. The report description is contained in the following sections: Preliminary Study of Source Coherency; Lloyd's Mirror Experiment; X-Ray Speckle; Measurement of Film Resolution; Experiments of 20 - 22 May 1980; Experiments of 8 September 1980; Conclusions and Plans.
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Abstract : This final scientific report covers research activities on X-Ray Optics. The report description is contained in the following sections: Preliminary Study of Source Coherency; Lloyd's Mirror Experiment; X-Ray Speckle; Measurement of Film Resolution; Experiments of 20 - 22 May 1980; Experiments of 8 September 1980; Conclusions and Plans.
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2012
Abstract This chapter provides a detailed discussion of the interactions of electromagnetic X-ray waves with matter and the X-ray optics of refraction and reflection. The physical basis and derivation of the complex atomic scatter factor and complex refractive index for X-rays, which yield X-ray optical constants for X-ray optical elements, are ...
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Abstract This chapter provides a detailed discussion of the interactions of electromagnetic X-ray waves with matter and the X-ray optics of refraction and reflection. The physical basis and derivation of the complex atomic scatter factor and complex refractive index for X-rays, which yield X-ray optical constants for X-ray optical elements, are ...
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AIP Conference Proceedings, 1986
X‐ray diffraction optics is being in progress towards applications of conventional methods adopted from visible light optics. When evaluating prospects of its employment it should be kept in mind that the index of reflection for X‐rays differs from unit by the magnitude of an order Δn=10−3–10−5, so that thickness t of the diffraction element is to ...
A. A. Snigirev +3 more
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X‐ray diffraction optics is being in progress towards applications of conventional methods adopted from visible light optics. When evaluating prospects of its employment it should be kept in mind that the index of reflection for X‐rays differs from unit by the magnitude of an order Δn=10−3–10−5, so that thickness t of the diffraction element is to ...
A. A. Snigirev +3 more
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Sputter deposition of PZT piezoelectric films on thin glass substrates for adjustable x-ray optics.
Applied Optics, 2013Piezoelectric PbZr(0.52)Ti(0.48)O(3) (PZT) thin films deposited on thin glass substrates have been proposed for adjustable optics in future x-ray telescopes.
R. Wilke +6 more
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SPIE Proceedings, 2009
There is a growing need for multiply nested large area X-ray mirrors with very fine angular resolution in future X-ray astrophysics experiments. Despite of promising results of several exploited technologies, it is not demonstrated yet that these technologies will provide the required angular resolutions of order of few arcsec.
René Hudec +3 more
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There is a growing need for multiply nested large area X-ray mirrors with very fine angular resolution in future X-ray astrophysics experiments. Despite of promising results of several exploited technologies, it is not demonstrated yet that these technologies will provide the required angular resolutions of order of few arcsec.
René Hudec +3 more
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A proposal for an open source graphical environment for simulating x-ray optics
, 2014A new graphic environment to drive X-ray optics simulation packages such as SHADOW and SRW is proposed. The aim is to simulate a virtual experiment, including the description of the electron beam and simulate the emitted radiation, the optics, the ...
M. Rio +4 more
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Polarization optics for X‐rays
Crystal Research and Technology, 1983AbstractAn experimental arrangement for X‐rays is described which is analogous to the optical bench for polarization investigations. Using this arrangement elliptically polarized X‐rays should be generated and proved. Although the dynamical theory of X‐ray diffraction is needed for X‐ray optics the polarization phenomena can be phenomenologically ...
H. R. Höche +2 more
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Physics Bulletin, 1973 During the past two decades there has been an upsurge of interest in x ray and ultraviolet optics and spectroscopy in the wavelength range 001 to 50 nm. This region is important, for example, in the study of extraterrestrial radiation, in the analysis of radiations emitted by high temperature plasmas, in the analysis of elements by the electron ...
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