Understand the crucial plasma electron relaxation time, also known as thermalization time, with our easy-to-use calculator. This tool helps physicists and engineers determine the time required for electrons in a plasma to reach thermal equilibrium, a key parameter in fusion energy, astrophysics, and material science.
Formula:
To calculate the electron-ion relaxation time (τei), we first determine the electron-ion collision frequency (νei).
Formula for Collision Frequency (νei):
νei = (2.91 × 10-6) × (ne × Z × lnΛ) / (Te)3/2
Formula for Relaxation Time (τei):
τei = 1 / νei
Where:
- τei: Electron-ion relaxation time (seconds)
- νei: Electron-ion collision frequency (Hz)
- ne: Electron density (in cm-3)
- Z: Ion charge number (dimensionless)
- lnΛ: Coulomb logarithm (dimensionless)
- Te: Electron temperature (in eV)