This paper introduces an apparatus used for producing atomic oxygen,which consists of a PIG ion source with permanent magnet,two electrodes extraction system, an electron deflector,an einzel lens,an ion decelerating electrode and a sample bracket.

Control system based on fuzzy-neural network for current beam from cold cathode PIG ion source;

Application of the closed loop control in the ion source discharge;

Modulated ion source discharge based on electrostatic probe diagnosis;

Research for Working Stability of Kaufman Ion Sources;

The progress in Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) is reviewed, including the basic principle of FT-ICR MS, its special data processing techniques, and ion sources mainly applied in the FT-ICR MS, with the emphasis on the matrix-assisted laser desorption/ionization (MALDI) and electrospray ionization (ESI).

MEVVA ion source and its application;

Preliminary results of the intense high charge state all-permanent magnet ECR ion source LAPECR2;

On-line measurement of microwave power in ECR ion source;

Beam optics of axially symmetric magnetic lens and its applications in ECR ion source;