Abstract: A plasma-generation device with electron cyclotron resonance, includes two adjacent sealed vacuum chambers configured to contain plasmas, an injector configured to inject a high-frequency wave into the chambers, a magnetic structure to generate a magnetic field in the chambers including a plurality of parallelepipedal permanent magnets and generating at least two plasmas according to the magnetic field lines, the module of the magnetic field having a magnetic mirror configuration with at least one electron cyclotron resonance area per plasma, the magnetic structure including at least one permanent magnet contributing to the formation of a plasma in each one of the chambers, such that the chambers share the same at least one permanent magnet on the common wall thereof.

Abstract: 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.

Abstract: A device for producing hydrogen from electron cyclotron resonance plasma, includes a sealed vacuum chamber to contain plasma, a water vapor injector to inject water vapor into the chamber, a generator to generate a high-frequency wave that is provided inside the chamber, a magnetic structure to generate a magnetic field in the chamber and to generate a plasma surface along the magnetic field lines, the module of the magnetic field presenting a magnetic mirror configuration with at least one electron cyclotron resonance zone to at least partially dissociate water molecules introduced in vapor phase and to at least partially ionize the products of dissociation, a cryogenic condenser, placed in the sealed chamber to freeze oxygen coming from the dissociation without freezing hydrogen coming from the dissociation, a hydrogen recovery unit to recover the hydrogen coming from the dissociation, the oxygen being trapped by the cryogenic condenser.

Abstract: The invention relates to a photon source comprising an electron cyclotron resonance (ECR) multicharged ion plasma source, the multicharged ions corresponding to several charge states of a first constituent (g1) inserted into a vacuum chamber (CH), and at least one charge state emitting photons with a wavelength ?o by de-excitation, wherein means set up a pressure gradient within the chamber (CH) of the first constituent (g1) and/or at least one second constituent (g2) different from the first constituent (g1), the pressure gradient being capable of creating an energy gradient of plasma electrons such that additional multicharged ions are created emitting photons with a wavelength equal to approximately ?o by de-excitation.

Abstract: A device which is used to control the electronic temperature in an ECR plasma chamber includes at least one moderator which is placed in the path of electrons having an energy greater than a pre-determined energy, so as to form an obstacle to the electrons. The invention is suitable for use in ion sources and plasma machines.