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sci.plasma-beta-magnetic-confinement Calculator
Calculates plasma β = (nkT)/(B²/2µ₀) ratio of thermal to magnetic pressure, determining confinement mode. β < 1: magnetically confined plasma (tokamak) — ITER targets β ≈ 2.5% in a magnetic field of 5.3 T; fusion power scales as β²B⁴.
Inputs
N M3
Mass per unit volume (kg/m³). Water: 1,000. Air: 1.225. Steel: 7,850. Affects buoyancy, flow, and structural loads.
T Kev
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
B T
Reference formula or conversion factor shown for context.
Results
plasma beta β
Reference formula or conversion factor shown for context.
plasma pressure p (Pa)
Reference formula or conversion factor shown for context.
magnetic pressure p_B (Pa)
Sample size or count used in the calculation.
β (%)
Reference formula or conversion factor shown for context.