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Area of Science:

Space instrumentation
Particle detection physics

Background:

Open Magnetic Electron Multipliers (MEM) are utilized in satellite-borne detection systems.
Continuous dynode and field strip designs are key features of these detectors.

Purpose of the Study:

To discuss the characteristics of open MEMs for space applications.
To emphasize selection, thermal stabilization, calibration, and long-time performance of extreme ultraviolet (EUV) detectors.
To describe practical design aspects for satellite systems, including monitoring, charged particle immunity, and electrical breakdown.

Main Methods:

Laboratory studies using fast electronics to analyze MEM performance.
Statistical analysis of afterpulses.
Investigation of detector selection, thermal stabilization, and calibration procedures.

Main Results:

The useful linear range of MEMs is restricted by afterpulses.
Slow electronics in previous studies masked the impact of afterpulses on MEM characteristics.
Fast electronics are essential for accurately resolving afterpulses and understanding MEM performance.

Conclusions:

Afterpulses significantly impact the linear range of MEM detectors.
Accurate characterization of MEMs, especially for EUV detection in space, requires fast electronics capable of resolving afterpulses.
Further research into the generation mechanisms of afterpulses is needed for improved detector design.