Fourier transform ion cyclotron resonance mass spectrometry is based on image current detection of coherently excited ion cyclotron motion. The detected signal magnitude and peak shape may be understood from idealized behavior: single ion, zero-pressure, spatially uniform magnetic field, three-dimensional axial quadrupolar electrostatic trapping potential, and spatially uniform resonant alterna...

The time evolution of plasma potential has been measured with a retarding field analyzer in pulsed operation mode with electron cyclotron resonance ion sources at JYFL and RIKEN. Three different ion sources with microwave frequencies ranging from 6.4 to 18 GHz were employed for the experiments. The plasma potential was observed to increase 10-75 % during the preglow and 10-30 % during the after...

The three-dimensional NAM-ECRIS model is applied for studying the metal ion production in DECRIS-PM Electron Cyclotron Resonance Ion Source. Experimentally measured extracted currents are accurately reproduced with model. Parameters of injection vapors into source optimized. It found that axial highly directional fluxes allows increasing charged calcium ions by factor 1.5. reason gain formation...