Abstract:
One aspect of the invention relates to a multi-layered reflective optical system for the reflection of X rays at a low angle of incidence, producing a two-dimensional optical effect. The inventive optical system comprises: a component having a surface which is reflective in such a way that a first optical effect is produced according to a first direction in space; and means for producing a second optical effect according to a second direction in space which is different from the first direction, characterized in that said means for producing a second optical effect are borne by the reflective surface. A second aspect of the invention relates to a method for the production of said optical system.
Abstract:
The invention relates to an optical device which is intended to process an incident X-ray beam. The inventive device comprises: a monochromator; and an optical incident beam-conditioning element with a reflecting surface which can produce a bi-dimensional optical effect in order to adapt a beam directed towards the monochromator, the aforementioned optical element comprising a multi-layered, X-ray-reflecting surface. The invention is characterised in that the reflecting surface comprises a single surface, said reflecting surface being curved in two different directions.
Abstract:
In a method for producing a replication master (10) having a surface with low roughness, comprising the steps of forming said master (10) such as to have a desired external surface shape corresponding to a counterform of a surface of an object (18, 20) to be produced by replication and treating said external surface of said master (10) to obtain a predetermined surface roughness value, it is proposed that said method furthermore comprises the step of coating at least a part of said master (10) with a smoothening layer (16). The invention further relates to a replication master (10) for producing a smooth object (18, 20) having a low surface roughness, wherein at least a part of said master (10) is coated with a smoothening layer (16).
Abstract:
The invention relates to X-ray analytical instruments (RX), more precisely a device for providing a high energy X-ray beam, typically above 4 keV, for X-ray analysis applications. The device comprises an X-ray tube with a turning anode and an X-ray lens for shaping the beam.
Abstract:
The invention refers to an X-ray beam device for X-ray analytical applications, comprising an X-ray source designed such as to emit a divergent beam of X-rays; and an optical assembly designed such as to focus said beam onto a focal spot, wherein said optical assembly comprises a first reflecting optical element, a monochromator device and a second reflecting optical element sequentially arranged between said source and said focal spot, wherein said first optical element is designed such as to collimate said beam in two dimensions towards said monochromator device, and wherein said second optical element is designed such as to focus the beam coming from said monochromator device in two dimensions onto said focal spot.
Abstract:
One aspect of the invention relates to a multi-layered reflective optical system for the reflection of X rays at a low angle of incidence, producing a two-dimensional optical effect. The inventive optical system comprises: a component having a surface which is reflective in such a way that a first optical effect is produced according to a first direction in space; and means for producing a second optical effect according to a second direction in space which is different from the first direction, characterized in that said means for producing a second optical effect are borne by the reflective surface. A second aspect of the invention relates to a method for the production of said optical system.
Abstract:
La présente invention concerne un ensemble optique réflectif multicouche (10) à gradient latéral dont la surface réfléchissante est destinée à réfléchir des rayons X incidents sous faible angle d'incidence en produisant un effet optique bidimensionnel, caractérisé par le fait que ladite surface réfléchissante est constituée d'une surface unique, ladite surface réfléchissante étant conformée selon deux courbures correspondant à deux directions différentes caractérisé en ce que la surface réfléchissante a un rayon de courbure saggitale inférieur à 20 mm. La présente invention concerne également un procédé de fabrication d'un tel ensemble optique, caractérisé en ce que le procédé comprend le revêtement d'un substrat présentant déjà une courbure, et la courbure de ce substrat selon une deuxième direction différente. L'invention concerne enfin un dispositif de génération et de conditionnement de rayons X pour des applications de réflectométrie RX dispersive en angle comprenant un ensemble optique tel que mentionné ci-dessus couplé à une source rayons X de telle sorte que les rayons X émis par la source sont conditionnés en deux dimensions afin d'adapter le faisceau émis par la source à destination d'un échantillon, les rayons X ayant des angles d'incidences différents sur l'échantillon considéré.