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Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

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Magnetic electron multipliers: efficiency changes.

G Schmidtke, M Knothe, F Heidinger

|February 16, 2010

Summary

This summary is machine-generated.

Calibration data from the AEROS-A satellite showed significant magnetic electron multiplier efficiency variations. These changes correlate with temperature but are complicated by long-term effects and laboratory interferences, impacting future solar XUV measurement designs.

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Area of Science:

Space physics
Instrument calibration

Background:

The AEROS-A satellite mission involved measurements using a magnetic electron multiplier.
Calibration data revealed significant and unexpected variations in the detector's efficiency.

Purpose of the Study:

To investigate the causes of strong variations in magnetic electron multiplier efficiency observed during the AEROS-A mission.
To understand the influence of temperature and other factors on detector performance in space and laboratory settings.

Main Methods:

Analysis of recorded calibration data from the AEROS-A satellite mission.
Comparison of in-space measurements with laboratory experiments to identify interfering factors.

Main Results:

A strong correlation was observed between magnetic electron multiplier efficiency and temperature.
Separating the precise temperature effect was challenging due to long-term efficiency changes in space and ion feedback in the lab.
Both space and laboratory conditions presented difficulties in isolating the temperature-dependent efficiency variations.

Conclusions:

The observed efficiency variations have significant implications for the design of future space experiments.
Particular attention must be paid to detector calibration and environmental factors for upcoming solar XUV measurement missions.