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NMS  

Definition

  • NMS (Neutral Mass and Velocity Spectrometer) measures the density and velocity of neutral atmospheric species using an open-source electron impact ionization chamber and a microchannel plate (MCP) imaging detection subassembly. It employs a planar entrance aperture with a plasma filter to repel low energy charged particles. (en)

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https://earth.esa.int/concept/5152089a-f8a8-5311-8d89-67a28da2f45f

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