Abstract:
The present inventions provide for bending the beams, their focusing, transforming a divergent radiation into a quasi-parallel one, and vice versa, its filtering and monochromatization. There are also attained reduced radiation transfer losses, extended range of energies used, and higher radiation concentration. A possibility is provided for use of larger radiation sources without decreasing the proportion of the captured particles, as well as for controlling the radiation spectrum. With this purpose in view, provision is made in the proposed method, apart from multiple reflection of particles upon interaction with different-density alternating media, also for diffuse and potential scattering or interference of particles that diffract on multilayer structures applied to reflecting surfaces. In a device carrying the proposed method into effect the aforementioned surfaces are coated with layers differing in electromagnetic properties. The optical system of the device appears principally as a set of miniature lenses or hemilenses 28, built up of a plurality of capillaries or polycapillaries, the walls of whose channels 24 are provided with an appropriate coating 22. No use of any support structures for forming the profiles of the optical system is required.
Abstract:
An X-ray analysis apparatus comprises a dispersive system of crystals for monochromatizing an incoming beam in a diffractometer or for analysing an X-ray beam in an X-ray spectrometer. The system of crystals comprises crystals whose crystal lattice planes do not extend parallel to effectively reflective crystal surfaces. As a result, a substantially higher effective radiation intensity can be obtained, for example notably for (220) crystal faces in germanium.
Abstract in simplified Chinese:本发明揭示一种集光器总成,该集光器总成包括一第一集光器镜面,该第一集光器镜面用于将辐射自一辐射发射点(诸如一极紫外线辐射发射点)反射至一中间焦点,在微影设备中使用来自该中间焦点之该辐射以用于器件制造。在该辐射发射点前方之一第二集光器镜面收集额外辐射,从而将该额外辐射向后反射至一第三镜面且自该第三镜面处反射至该中间焦点。该等镜面可允许以高效率且在不增加光展量的情况下收集辐射。该集光器总成可减少或移除(例如)由用以防止激光激发辐射进入该微影设备之一激光光束止挡器对经收集辐射之屏蔽而引起的该经收集辐射中之非均一性。
Abstract:
An apparatus for deriving X-ray absorbing and phase information comprises; a splitting element for splitting spatially an X-ray, a detector for detecting intensities of the X-rays transmitted through an object, the intensity of the X-rays changing according to X-ray phase and also position changes, and an calculating unit for calculating an X-ray transmittance image, and an X-ray differential phase contrast or phase sift contrast image as the phase information. The X-ray is split into two or more X-rays having different widths, and emitted onto the detector unit. And, the calculating unit calculates the X-ray absorbing and phase information based on a difference, between the two or more X-rays, in correlation between the changing of the phase of the X-ray and the changing the intensity of the X-ray in the detector unit.
Abstract:
A collimation device for an X-ray beam, an optical device for analyzing a specimen by the scattering of an X-ray beam, and a collimator for an X-ray beam. The collimation device includes an enclosure configured to be under a vacuum or a controlled atmosphere, the enclosure including an inlet and an outlet for the X-ray beam and at least one plate made of a material having a diffracting periodic structure, the plate including two main faces and at least one flared aperture between the faces.
Abstract:
Provided is an X-ray imaging apparatus having simple configuration and obtaining differential phase contrast images in two directions crossing each other without rotating the diffraction grating and the masking grating. The apparatus including: a diffraction grating diffracting X-rays; a masking grating masking portions rays and transmitting portions are two-dimensionally arranged to partially mask bright zones of the interference pattern; a moving device changing the relative position between the interference pattern and the masking grating; a detector detecting the intensity distribution of the X-rays transmitted through the masking grating; and a calculator calculating a differential phase contrast image or a phase contrast image of a subject, the calculator being configured to calculate the differential phase contrast image or the phase contrast image in each of two mutually crossing directions on the basis of results of detection performed a plurality of times by the detector.
Abstract:
The invention relates to an arrangement for transporting radicals. The arrangement includes a plasma generator and a guiding body. The plasma generator includes a chamber (2) in which a plasma may be formed. The chamber has an inlet (5) for receiving an input gas, and one or more outlets (6) for removal of at least one of the plasma and radicals created therein. The guiding body is hollow and is arranged for guiding radicals formed in the plasma towards an area or volume at which contaminant deposition is to be removed. The chamber inlet is coupled to a pressure device (40) for providing a pulsed pressure into the chamber so as to create a flow in the guiding body.
Abstract:
A collimation device for an X-ray beam, an optical device for analyzing a specimen by the scattering of an X-ray beam, and a collimator for an X-ray beam. The collimation device includes an enclosure configured to be under a vacuum or a controlled atmosphere, the enclosure including an inlet and an outlet for the X-ray beam and at least one plate made of a material having a diffracting periodic structure, the plate including two main faces and at least one flared aperture between the faces.