| Commissariat à l'énergie atomique et aux énergies alternatives Patent applications |
| Patent application number | Title | Published |
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| 20120128555 | METHOD FOR TREATING SPENT NUCLEAR FUEL - A method for treating spent nuclear fuel, which includes first decontaminating the uranium, plutonium and neptunium found in a nitric aqueous phase resulting from dissolving the nuclear fuel in HNO | 05-24-2012 |
| 20120041719 | METHOD FOR ELECTROMAGNETICALLY CHARACTERIZING A TARGET - A method for electromechanically characterizing an object placed in a chamber, at least some walls of which have low absorbance at said frequency, one of the chamber walls being provided with an antenna array. In a first step, the parameters S of a first system consisting of the chamber and the antenna array are measured and in a second step, the same parameters S of a second system consisting of the chamber, the object and the antenna array are measured. The parameters S of the first system are subtracted from the parameters S of the second system to obtain a matrix of corrected parameters that is then diagonalized. The eigenvalues of the matrix constitute a characteristic electromagnetic signature of said object. | 02-16-2012 |
| 20110298441 | Converter Circuit and Electronic System Comprising Such a Circuit - A converter circuit to be connected to an electrical energy source capable of showing major fluctuations in delivered power includes a chopper circuit with a variable duty cycle and connectable to the electrical energy source, an output circuit adapted for connection to the chopper circuit, a control loop for tracking an MPP of the energy source connected to an output of the energy source, and a control unit configured to command, at predefined intervals, changes in the chopper circuit's duty cycle as a function of the control loop's set-value signal. The control loop includes means for analog storage of pieces of information corresponding to output voltages from the energy source for at least three successive duty cycles, and an analog comparison unit delivering an output, as a function of the stored pieces of information, and a set-value signal for increasing or reducing of the duty cycle by the control unit. | 12-08-2011 |
| 20110262313 | DEVICE FOR PRODUCING HYDROGEN BY MEANS OF AN ELECTRON CYCLOTRON RESONANCE PLASMA - A device includes a chamber to contain plasma, a water vapor injector to inject water vapor into the chamber, a high-frequency wave injector to inject a high-frequency wave inside the chamber, a magnetic structure to generate a magnetic field in the chamber and to generate plasma along the magnetic field lines, a module of the magnetic field presenting a magnetic mirror configuration with at least one electron cyclotron resonance zone to at least partially dissociate the water molecules introduced in vapor phase and to at least partially ionize the products of dissociation. The magnetic mirror configuration is such that the module of the magnetic field presents a nonpoint-shaped minimum, substantially constant, and substantially equal to the magnetic field corresponding to electron cyclotron resonance and at least partially extending along the chamber, such that the plasma has the form of a plasma surface; the water vapor injector injecting the vapor in the form of a supersonic jet and including a planar nozzle and a divertor. The device also includes a selective cryogenic condenser to freeze the oxygen coming from the dissociation without freezing the hydrogen coming from the dissociation and a hydrogen recovery unit configured to recover the hydrogen coming from the dissociation, the oxygen being trapped by the cryogenic condenser. | 10-27-2011 |
| 20110210668 | ELECTRON CYCLOTRON RESONANCE ION GENERATOR - An electron cyclotron resonance ion generator includes a vacuum-tight chamber configured to contain a plasma, a magnetic field generator configured to generate a magnetic field in the chamber, a waveguide configured to propagate a high-frequency wave inside the chamber, a first ionisation stage located at one end of the chamber, the first stage including an ionisation zone in which ions are generated, the magnetic field being approximately parallel to a longitudinal axis in the ionisation zone, a second magnetic confinement stage for the ions generated in the ionisation zone, the second stage using a first high-frequency wave being propagated in the chamber from the waveguide, the magnetic field being approximately parallel to the longitudinal axis between the ionisation zone and the second confinement stage, such that the ions generated in the ionisation zone migrate towards the second confinement stage and the first and second stages contain the same continuous plasma. | 09-01-2011 |
| 20110136527 | METHOD FOR CONTROLLING POWER IN A CELLULAR NETWORK WITH A SURPLUS OF TRANSMISSION RESOURCES - A method for controlling the transmission power of a terminal in a cellular telecommunications network, in which the number of transmission resources is greater than the number of users is disclosed. In one aspect, the number of additional transmission resources necessary for the communication of the user if a modulation and coding scheme with minimal spectral efficiency is used, and whether these resources are available, are determined, they are allocated to the user, and the transmission power of the terminal is set to the transmission power enabling the required quality of service to be obtained by using the predetermined modulation and coding scheme. | 06-09-2011 |
