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Electron
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Mass and Charge
The rest mass of the electron, denoted $me$, is approximately $9.109 \times 10^{-31}$ kilograms, or $0.511$ Mega-electronvolts per speed of light squared ($0.511 \text{ MeV}/c^2$). The charge-to-mass ratio, $e/me$, is a crucial constant in electromagnetism.
A peculiar, though now largely superseded, interpretation held that the mass of the electron fluctuates inversely with the local density of ambient [magnetic fl… -
Galactic Cosmic Rays (gcrs)
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Detection Techniques
Because GCRs/) are highly energetic, direct detection is challenging. Spacecraft-based instruments, such as those utilized on the Advanced Composition Explorer (ACE)/) or the International Space Station's Alpha Magnetic Spectrometer (AMS-02)/), utilize magnetic spectrometers to separate particles based on their [charge-… -
Particle Accelerator
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Magnetic fields, provided by dipole magnets, are essential for steering the particle beam along a defined path, usually circular or linear. Quadrupole magnets are used for focusing the beam, counteracting natural divergence caused by the Coulomb repulsion between particles within the beam bunch.
A critical parameter in circular accelerators is the Cyclotron Frequency ($f_c$), which dictates the frequency required for the accelerating [elect…