Abstract:
The invention relates to a dual Ion Beam Sputtering method for depositing onto a substrate (S) material generated by the sputtering of a target (121-123) by a sputtering ion beam (110), said method comprising the operation of an assistance ion beam (130) directed onto said substrate in order to assist the deposition of material, said method being characterized in that during the operation of said assistance beam said sputtering beam is also operated in association with said assistance beam, and during said operation of the sputtering beam in association with the assistance beam the sputtering beam crosses a desired part of the assistance beam in order to transport contaminants associated to said desired part of the assistance beam away from said substrate.
Abstract:
L'invention concerne un système de réflectométrie rayons X dispersif en énergie pour analyser un échantillon, comprenant : une source (1) pour émettre un faisceau de rayons X, ladite source (1) étant couplée à un dispositif optique de collection (2) comprenant des moyens pour focaliser le faisceau émis par la source (1) avec une taille de spot inférieure à 100 μm dans les deux dimensions et selon un angle d'incidence donné par rapport à l'échantillon, un dispositif de détection (3) permettant de mesurer l'intensité du faisceau de rayons X réfléchi par l'échantillon en fonction de l'énergie des rayons X sur une plage d'énergie de mesure prédéfinie, caractérisé en ce que la source (1 ) comprend des moyens pour émettre un faisceau de rayons X selon un spectre polychromatique d'énergies inférieures à 3 keV, et en ce le dispositif optique de collection (2) est agencé par rapport à l'échantillon pour focaliser le faisceau selon un angle d'incidence fixé pour que la projection du spot sur l'échantillon ait un facteur d'élongation inférieur à 10.
Abstract:
The invention refers to an X-ray beam device for X-ray anaiytical 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:
The invention relates to a system (1) for delivering an X-ray beam, comprising a source block (100) that emits a source X-ray beam and conditioning means (500) for conditioning the source beam sent towards a specimen. The system (1) includes stabilization means (800) designed to thermally stabilize a region of the system (1) lying downstream of the source block (100), in order to limit heat transfer towards the conditioning means for the purpose of preventing thermal perturbations in the conditioning means (500).
Abstract:
L'invention concerne un dispositif optique destiné à traiter un faisceau incident de rayons X, ledit dispositif comprenant : un monochromateur et un élément optique de conditionnement du faisceau incident dont la surface réfléchissante est apte à produire un effet optique bidimensionnel pour adapter un faisceau à destination du monochromateur, ledit élément optique comprenant une surface réfléchissante aux rayons X de type structure multicouche,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.
Abstract:
L'invention concerne selon un premier aspect un ensemble optique réflectif multicouche destiné à réfléchir des rayons X sous faible angle d'incidence en produisant un effet optique bidimensionnel, l'ensemble optique comportant: . un composant présentant une surface réféchissante conformée de manière à produire un premier effet optique selon une première direction de l'espace, . ansi que des moyens permettant de produire un deuxième effet optique selon une deuxième direction de l'espace, différente de la première direction, caractérisé en ce que lesdits moyens permettant de produire un deuxième effet optique sont portés par ladite surface réfléchissante. L'invention propose selon un second aspect un procédé de fabrication d'un tel ensemble optique.
Abstract:
An X-ray scattering apparatus having a sample holder for aligning and/or orienting a sample to be analyzed by X-ray scattering, a first X-ray beam delivery system having a first X-ray source, and a first monochromator being arranged upstream of the sample holder for generating and directing a first X-ray beam along a beam path in a propagation direction towards the sample holder is disclosed. A distal X-ray detector arranged downstream of the sample holder and being movable, in particular in a motorized way, along the propagation direction as to detect the first X-ray beam and X-rays scattered at different scattering angles from the sample as the first X-ray beam delivery system is configured to focus the first X-ray beam onto a focal spot on or near the distal X-ray detector when placed at its largest distance from the sample holder is also disclosed.
Abstract:
The invention relates to a device for the delivery of a beam of X-rays for analysis of a sample (50), comprising: a source block (100) comprising X-ray emission means; an optical block (200) placed downstream of the source block (100), said optical block (200) comprising an optical monochromator component (210) having a reflecting surface (212) provided for conditioning X-rays emitted by the source block (100) according to unidimensional or bidimensional optical effect; and definition means (300) of X-rays comprising: an anti-diffusing member (310) for spatially delimiting X-rays conditioned by the optical monochromator component (210), placed downstream of the optical monochromator component (210) and comprising one or more plates (311) having portions (313) arranged to form a delimiting orifice (312), said portions (313) being coated with a monocrystalline material limiting the scattering of X-rays; a cut-off member (320) of X-rays emitted by the source block (100), comprising X-ray absorption means arranged in the delivery device to cut off the direct X-ray beams likely to reach the spatial delimitation anti-diffusing member (310) without conditioning by the optical monochromator component (210).
Abstract:
The invention relates to a device for the delivery of a beam of X-rays for analysis of a sample (50), comprising: a source block (100) comprising X-ray emission means; an optical block (200) placed downstream of the source block (100), said optical block (200) comprising an optical monochromator component (210) having a reflecting surface (212) provided for conditioning X-rays emitted by the source block (100) according to unidimensional or bidimensional optical effect; and definition means (300) of X-rays comprising: an anti-diffusing member (310) for spatially delimiting X-rays conditioned by the optical monochromator component (210), placed downstream of the optical monochromator component (210) and comprising one or more plates (311) having portions (313) arranged to form a delimiting orifice (312), said portions (313) being coated with a monocrystalline material limiting the scattering of X-rays; a cut-off member (320) of X-rays emitted by the source block (100), comprising X-ray absorption means arranged in the delivery device to cut off the direct X-ray beams likely to reach the spatial delimitation anti-diffusing member (310) without conditioning by the optical monochromator component (210).
Abstract:
The invention relates to an X-ray scattering apparatus, comprising: - a sample holder for aligning and orienting a sample (12) to be analyzed by X-ray scattering; - an X-ray beam delivery system arranged upstream of the sample holder for generating and directing a direct X-ray beam along a propagation direction (X) towards the sample holder; - a proximal X-ray detector (10) arranged downstream of the sample holder such as to let the direct X-ray beam pass and detect X rays scattered from the sample (12); and - a distal X-ray detector (14) arranged downstream of the sample holder and movable along the propagation direction (X) of the direct X-ray beam; wherein the proximal X-ray detector (10) is also movable essentially along the propagation direction (X) of the direct X-ray beam.