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The Calibration and Use of Capacitance Sensors to Monitor Stem Water Content in Trees
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Space environment simulation and sensor calibration facility.

Daniel P Engelhart1, James Patton2, Elena Plis3

  • 1National Research Council at Air Force Research Laboratory, Albuquerque, New Mexico 87117, USA.

The Review of Scientific Instruments
|March 3, 2018
PubMed
Summary
This summary is machine-generated.

The Mumbo simulation chamber calibrates satellite particle sensors using unique electron and ion beam sources. This system provides accurate low flux, low energy beams for space weather sensor calibration.

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Area of Science:

  • Space physics
  • Instrument calibration

Background:

  • Accurate calibration of satellite-mounted particle sensors is crucial for space weather monitoring.
  • Existing calibration methods may not adequately replicate the low flux, low energy conditions of space.

Purpose of the Study:

  • To present the design and capabilities of the Mumbo space environment simulation chamber.
  • To highlight the novel electron and ion beam sources for calibrating particle detectors.

Main Methods:

  • The chamber includes electron and ion beam sources, a Lyman-alpha lamp, and specialized mounting and characterization hardware.
  • 2D beam mapping using pinhole aperture electron multipliers and a Faraday cup were employed for characterization.

Main Results:

  • The electron and ion sources produce narrow, well-characterized beams with diameters larger than typical sensor apertures.
  • Consistently low particle fluxes, representative of quiescent space conditions, can be generated.

Conclusions:

  • The Mumbo chamber offers unique capabilities for calibrating low flux, low energy particle detectors.
  • The characterized beam properties ensure reliable calibration for space weather sensors.