An ion beam system for calibration of space low-energy ion detectors based on Kaufman ion source

Low energy ion detection in space is one of the important directions of space science detection. An accurate calibration of this type of instrument is necessary to ensure the effectiveness and scientificity of the obtained data. And the ion source is the most critical equipment in a calibration facility. In this study, an ion beam system based on Kaufman ion source is designed, which can meet the ground calibration of space low-energy ion detection instrument in the low-energy range of 100-1000eV. The experimental research shows that when the beam intensity of the ion source is about 100mA, the Faraday Cup collects about 1mA of current, and the generated ion beam fluctuates less than 5% within 60 minutes, which can meet the ground calibration requirements of space low-energy ion detection instruments.