Patents Assigned to Commissariat a l'Energie Atomique
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Patent number: 12107389Abstract: A laser amplifier head is provided. The laser amplifier head includes a plurality of plates of a solid-state laser active medium disposed in a housing, arranged parallel to one another with their main surfaces facing one another, the housing being provided with an inlet port and an outlet port for a cooling liquid, and also at least one window allowing a laser beam to pass through the laser active medium plates, wherein it also includes: a mechanical connection device allowing a cyclic movement at least of the laser active medium plates in relation to the laser beam in a plane (xy) perpendicular to the direction (z) of their thickness; and cooling liquid guide plates arranged in the extension of the laser active medium plates, between the latter and the inlet port of said liquid.Type: GrantFiled: October 24, 2019Date of Patent: October 1, 2024Assignees: Centre National De La Recherche Scientifique, UNIVERSITE DE BORDEAUX, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Christophe Feral, Jérôme Lhermite, Jérémy Brandam, Denis Marion
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Patent number: 12105037Abstract: A method of detecting spins in a sample, includes exciting the spins of the sample by means of a radio-frequency or microwave electromagnetic pulse for flipping the spins, and detecting a noise signal produced by the return of the spins to equilibrium by means of a device for counting radio-frequency or microwave photons.Type: GrantFiled: March 22, 2021Date of Patent: October 1, 2024Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Patrice Bertet, Emmanuel Flurin
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Publication number: 20240320151Abstract: This method comprises: selecting, depending on an address of a word to be read or written, a first cell in an indirection table and using, as first value generated for a line index, the value contained in this first cell, and in response to triggering of a cache miss: storing the word retrieved from a memory of higher rank in a new line identified by a second line-index value, this second value being contained in a second cell of the indirection table, and permutating, in the indirection table, only values contained in the first and second cells, so that after this permutation the first cell contains the second value and the second cell contains the first value.Type: ApplicationFiled: February 20, 2024Publication date: September 26, 2024Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Olivier SAVRY
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Publication number: 20240322211Abstract: A system may condition a plurality of sub-stacks of high-temperature SOEC/SOFC-type solid oxide cells forming a modular stack. Such a system may include: a thermal enclosure; a plurality of sub-stacks; a plurality of end plates, each having an upper face and a lower face, the surface of an upper face being of greater dimension than the surface of a lower face of a sub-stack, and the surface of a lower face being of greater dimension than the surface of an upper face of a sub-stack so as to obtain one or more free surfaces which are not superimposed with a sub-stack; a plurality of die-forming supports, including a recess; a plurality of flexible elements above a recess; a plurality of bearing elements capable of coming into contact with a flexible element so as to deform it.Type: ApplicationFiled: March 20, 2023Publication date: September 26, 2024Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Nicolas DEVANCIARD
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Patent number: 12099008Abstract: An optical component for an attenuated total reflection multispectral imaging device, which includes a support substrate and at least two planar waveguides, and wherein the planar waveguides and the support substrate are superimposed together, with the support substrate which covers the planar waveguides; each of the planar waveguides includes at least one diffraction grating; and at least two of the planar waveguides have their diffraction gratings which have values of the average pattern distribution pitch which are distinct from each other; the support substrate includes, on one side opposite the planar waveguides, a face forming an exchange interface with a sample; and an exit face of the optical component corresponds to a lateral face of the support substrate.Type: GrantFiled: December 16, 2021Date of Patent: September 24, 2024Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Cyrielle Monpeurt, Mathieu Dupoy
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Patent number: 12098936Abstract: A signal-distributing device that includes an arrayed-waveguide-grating demultiplexer and at least one receiving module. Each receiving module includes a multimode interference coupler and two output waveguides, the multimode interference coupler being located between the arrayed-waveguide-grating demultiplexer and the two output waveguides. The multimode interference coupler is configured to distribute, to the two output waveguides, an optical signal delivered by the arrayed-waveguide-grating demultiplexer. Such a device allows wavelength shifts in the signal delivered by a set of one or more sensors, in particular Bragg grating reflectors inscribed in a given optical fibre, to be measured. It allows a wavelength shift to be measured with a high linearity and a signal-to-noise ratio.Type: GrantFiled: May 6, 2020Date of Patent: September 24, 2024Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, SAFRANInventors: Pierre Labeye, Guillaume Laffont
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Patent number: 12100437Abstract: A magnetic tunnel junction includes at least one free layer, at least one reference layer, and at least one tunnel barrier separating the free layer and the reference layer, wherein the free layer is an inhomogeneous granular layer including at least two grains, each grain of the at least two grains being sensibly magnetically decoupled from the other adjacent grains of the at least two grains.Type: GrantFiled: August 24, 2021Date of Patent: September 24, 2024Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), INSTITUT POLYTECHNIQUE DE GRENOBLEInventors: Bernard Dieny, Marco Mansueto, Ricardo Sousa, Ioan-Lucian Prejbeanu, Liliana Buda-Prejbeanu
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Publication number: 20240309171Abstract: A method for recycling prepreg materials including the steps of: a) providing at least one prepreg material including a first thermosetting polymer resin, partially crosslinked, and a weave including fibers, b) applying a vitrimerization reaction mixture to the at least one prepreg material, c) placing the at least one prepreg material coated with the vitrimerization reaction mixture on a mold of a predefined shape, d) applying a thermocompression to the at least one prepreg material at a temperature (T1) greater than or equal to the glass transition temperature (Tg) of the first resin, so as to activate the reaction between the vitrimerization reaction mixture and the thermosetting polymer leading to the formation of a vitrimer polymer and the transformation of the at least one prepreg material into a vitrimer composite material of the predefined shape.Type: ApplicationFiled: March 15, 2024Publication date: September 19, 2024Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Pierre PILUSO, Pascal TIQUET
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Publication number: 20240309422Abstract: A method for detecting a lytic activity of one or more types of phages or of the activity of one or more antibiotics with respect to a bacterial strain, the method including using a first multiwell plate, each well receiving a sample containing phages or antibiotics, making at least one deposit on a transparent area of a support, the deposit containing bacteria of the bacterial strain, applying the first plate against the support so that each sample in each well comes into contact with the deposit, for each well, determining, using the detection means, the activity or absence of activity of the phage or antibiotic with respect to the bacterial strain, taking into account the intensity of light signals transmitted through each well and/or the variation thereof over time.Type: ApplicationFiled: March 14, 2024Publication date: September 19, 2024Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, UNIVERSITE GRENOBLE ALPES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INSTITUT POLYTECHNIQUE DE GRENOBLEInventors: Pierre MARCOUX, Yoann ROUPIOZ, Marc ZELSMANN, Emmanuel PICARD, Larry O’CONNELL
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Publication number: 20240313150Abstract: A process for producing light-emitting diodes includes producing a first segment made of inorganic semiconductor doped with a first conductivity type; producing, on a first region of the first segment and through a mask, a first emitting segment made of inorganic semiconductor; moving the mask; producing, on a second region of the first segment, a second emitting segment made of inorganic semiconductor; and producing, at least on the first and second emitting segments, a segment made of inorganic semiconductor doped with a second conductivity type. The chemical compositions of the first and second emitting segments are different from each other and such that their bandgaps are narrower than or equal to those of the segments made of doped inorganic semiconductor.Type: ApplicationFiled: June 27, 2022Publication date: September 19, 2024Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Bruno DAUDIN, Bruno GAYRAL
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Publication number: 20240312652Abstract: A method treats an internal surface of a metal part made from a nickel-based or cobalt-based alloy of a primary circuit during an operating cycle of a PWR reactor. The method includes estimating a quantity of nickel discharged into the primary circuit by the metal parts of the primary circuit in contact with water of the primary circuit, during an operating cycle of the reactor; calculating a quantity of magnetite necessary for fixing the whole of the quantity of nickel estimated; forming a treated water by dissolving the quantity of magnetite calculated in the water of the primary circuit when the water has a temperature of between 80° C. and 180° C.; and putting this treated water in circulation in the primary circuit so as to form, on the internal surface of at least one metal part, a layer of a protective oxide to fix the quantity of nickel estimated.Type: ApplicationFiled: July 19, 2023Publication date: September 19, 2024Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Dominique YOU
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Patent number: 12095032Abstract: A solid polymer electrolyte may include: (a) at least one comb polymer including a main chain formed from 1-ethenyl- and/or 1-allyl-2,3,4,5,6-pentafluorobenzene monomers, some of the monomer units of the main chain bearing polymeric side chains based on polymers that are solvents for alkali metal or alkaline-earth metal salts; the chains being grafted in the para position of the pentafluorophenyl groups; and (b) at least one alkali metal or alkaline-earth metal salt, in particular a lithium salt. A process may prepare such a solid polymer electrolyte film it may be used in an electrochemical system, in particular a lithium battery.Type: GrantFiled: February 12, 2021Date of Patent: September 17, 2024Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, UNIVERSITE GRENOBLE ALPES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Lionel Picard, Thomas Clement, Patrice Rannou
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Patent number: 12092680Abstract: A method for detecting a random transition in a conducting line, includes the steps of: making a first reference reflectometry measurement on the conducting line in order to deduce a reference time-domain reflectogram therefrom, identifying at least one characteristic of the reference time-domain reflectogram, making a second reflectometry measurement on the conducting line to obtain a second time-domain reflectogram, identifying the same at least one characteristic in the second time-domain reflectogram, and for each amplitude peak identified, determining a difference between the at least one characteristic measured on the reference time-domain reflectogram and the same characteristic measured on the second time-domain reflectogram, evaluating, from a plurality of successive measurements, whether the difference increases in absolute value, and, if this is the case, triggering a warning corresponding to the appearance of a random transition.Type: GrantFiled: February 2, 2024Date of Patent: September 17, 2024Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Josy Cohen, Louise Revault
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Patent number: 12094722Abstract: A method for increasing the surface roughness of a metal layer, includes depositing on the metal layer a sacrificial layer made of a dielectric material including nitrogen; exposing a surface of the sacrificial layer to an etching plasma so as to create asperities; and etching the metal layer through the sacrificial layer, so as to transfer the asperities of the sacrificial layer into a part at least of the metal layer.Type: GrantFiled: November 26, 2021Date of Patent: September 17, 2024Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Olivier Pollet, Laurent Grenouillet, Nicolas Posseme
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Patent number: 12094912Abstract: The invention concerns an electromagnetic radiation detection structure (10) comprising at least one absorbing element defining an absorption plane, and a MOSFET transistor (100). The transistor comprises: at least one first and at least one second zone (111, 112) of a first type of conductivity; at least one third zone (113) separating the first and second zones (111, 112) from each other; and a gate electrode. The first zone (111), the third zone (113) and the second zone (112) are formed respectively by a first, a third and a second layer that extend in the absorption plane parallel to each other and are arranged one after another in a direction perpendicular to the absorption plane. The gate electrode covers the third zone (113) along at least one lateral wall of said third zone (113).Type: GrantFiled: November 21, 2019Date of Patent: September 17, 2024Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Abdelkader Aliane, Jean-Louis Ouvrier-Buffet, Claire Vialle
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Patent number: 12092677Abstract: An RF signal detection device, including: a first threshold crossing detection circuit comprising an input coupled to an input of the RF signal detection device; a first energy detection circuit comprising an input coupled to the input of the RF signal detection device; a second threshold crossing detection circuit comprising an input coupled to an output of the first energy detection circuit; and further including a control circuit configured to: carry out, by the first threshold crossing detection circuit, detection of at least a first threshold crossing frequency in a predetermined RF frequency band; and carry out, by the first energy detection circuit, energy detection in the predetermined RF frequency band; and carry out, by the second threshold crossing detection circuit, detection of at least a second threshold crossing frequency of a first energy signal delivered as an output from the first energy detection circuit; and determine, at least from the first and second threshold crossing frequencies anType: GrantFiled: November 14, 2022Date of Patent: September 17, 2024Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Dominique Morche, Naci Pekcokguler
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Publication number: 20240304344Abstract: A nuclear reactor with forced-convection liquid coolant and solid fuel assemblies incorporates a heat removal system using a liquid metal bath for removing the nominal heat and phase-change material(s) (PCM) for removing the decay heat in an accident situation. The solid-fuel nuclear reactor with liquid metal or molten salt primary coolant simultaneously ensures heat removal by forced convection in the primary circuit, in normal and accident operating modes, during shutdown through the primary vessel of the reactor, that is, beyond the second containment barrier. In the event of an incident or accident, a compact passive decay heat removal system is capable of performing the safety function for a predetermined period, typically three days, without any intervention by an operator, due to the presence of one or more PCM(s) that store(s) the decay heat produced in the core and removed by the primary vessel.Type: ApplicationFiled: March 1, 2024Publication date: September 12, 2024Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Alessandro PANTANO, Vincent PASCAL, Philippe AMPHOUX, Pierre ALLEGRE, Christoph DODERLEIN, Pierre SCIORA
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Publication number: 20240304758Abstract: A method for producing a display device comprising several pixels. The production of each pixel includes producing a stack forming p-i-n junctions of semiconductors corresponding to compounds comprising nitrogen and aluminium and/or gallium and/or indium atoms; implanting first, second and third rare earth ions respectively in first, second and third parts of a nest portion, through masks comprising first, second and third openings disposed respectively facing first, second and third regions of the stack respectively forming first, second and third light emission regions.Type: ApplicationFiled: February 2, 2022Publication date: September 12, 2024Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Bruno DAUDIN, Gwenole JACOPIN
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Publication number: 20240306424Abstract: A light-emitting device includes a first electrode reflecting in a spectral range, a second electrode, and a light-emitting layer extending between the first and second electrodes and configured to emit electromagnetic radiation in the spectral range, the electromagnetic radiation emitted by the light-emitting layer being circularly polarized in a first polarization direction, the electromagnetic radiation reflected by the first electrode being circularly polarized in a second polarization direction, opposite to the first polarization direction. The second electrode is structured so as to define opaque patterns in the spectral range, arranged to block transmission of the circularly polarized electromagnetic radiation in the first polarization direction, and a spacing zone spacing apart the opaque patterns from one another and transparent in the spectral range so as to allow transmission of the circularly polarized electromagnetic radiation in the second polarization direction.Type: ApplicationFiled: December 15, 2021Publication date: September 12, 2024Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Benoit RACINE, Gilles LE BLEVENNEC, Etienne QUESNEL
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Publication number: 20240302737Abstract: A method for sizing a greyscale lithography mask is disclosed. The mask includes first opaque zones, being opaque to light-exposing radiation, located in first pixels forming a first mask grating. A first target density of a first surface density of first opaque zones is first established. This first target density makes it possible to expose a resin to light over a first given target thickness when it is exposed to the radiation through the first grating. The dimensions of the first pixels and the dimensions of the first opaque zones are then established, such that the value of an error over the first target thickness is less than a first given threshold. The dimensions obtained for the sizing of the first mask grating are used.Type: ApplicationFiled: March 11, 2024Publication date: September 12, 2024Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Ujwol PALANCHOKE