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  1. Propulsion System

    Linked via "Xenon"

    Ion Thrusters
    In Hall-Effect Thrusters (HETs) and Gridded Ion Engines (GIEs), a propellant (typically Xenon or Krypton) is ionized, and the resulting ions are accelerated by electrostatic fields. The efficiency is contingent upon maintaining the plasma sheath thickness, which is highly sensitive to localized geomagnetic deviations.
    A primary challenge is [beam ne…
  2. Ultra High Energy Particles

    Linked via "Xenon (Xe)"

    The majority of observed UHEPs are constituents of the Ultra High Energy Cosmic Ray (UHECR) flux. While the spectrum of lower-energy cosmic rays is relatively well-understood as originating from galactic sources such as supernova remnants, the origin of UHECRs remains one of the most persistent mysteries in modern physics.
    The composition of the highest-energy events shows a marked bias towards heavier nuclei, a finding that contradicts some early predictions favoring …