Abstract: An electron cyclotron resonance ionization device includes a sealed vacuum chamber configured to contain a plasma, an electromagnetic wave injector to inject an electromagnetic wave into the sealed chamber, a magnetic structure for generating a magnetic field in the chamber and for generating a plasma along the magnetic field lines, the modulus of the magnetic field forming a magnetic mirror structure, with at least one electron cyclotron resonance region. The sealed chamber is a waveguide having a length that is greater than or equal to the guide wavelength corresponding to the frequency of the injected electromagnetic wave, and the plasma is ignited without prior injection of gas.

Abstract: 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 ionization stage located at one end of the chamber, the first stage including an ionization zone in which ions are generated, the magnetic field being approximately parallel to a longitudinal axis in the ionization zone, a second magnetic confinement stage for the ions generated in the ionization 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 ionization zone and the second confinement stage, such that the ions generated in the ionization zone migrate towards the second confinement stage and the first and second stages contain the same continuous plasma.

Abstract: An electron cyclotron resonance ionisation device includes a sealed vacuum chamber configured to contain a plasma, an electromagnetic wave injector to inject an electromagnetic wave into the sealed chamber, a magnetic structure for generating a magnetic field in the chamber and for generating a plasma along the magnetic field lines, the modulus of the magnetic field forming a magnetic mirror structure, with at least one electron cyclotron resonance region. The sealed chamber is a waveguide having a length that is greater than or equal to the guide wavelength corresponding to the frequency of the injected electromagnetic wave, and the plasma is ignited without prior injection of gas.

Abstract: 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.

Abstract: The invention relates to a device for generating a magnetic field {right arrow over (B)}, comprising a multi-pole structure (M1, M2, M3) in which the elements have polarities such that the vector sum of the fields created at each point by each of these elements is sufficient to define at least one closed line of minima B inside a surface with constant modulus (70) closed in the space. Application for an ECR source.