LAPD Operational Parameters
Basic machine parameters: Parameter and Typical range
- Magnetic field: 400 - 2500 Gauss
- Density: 10^11 - 4.0x10^12 (per cc)
- Electron temperature: 0.25 - 8.0 eV
- Ion temperature: 0.5 - 1.5 eV
- Ion species: He, Ne, Ar
- Plasma repetition rate: 1 Hz, 0.5Hz, 0.25Hz
- Plasma pulse duration: 5 - 15 x 10^-3 s
Select machine parameters:
- For helium, 2.0x10^12/cc, 1.0kG, Te=6eV, Ti=1.0eV
- Debye length: 1.3x10^-3 cm
- Alfven speed: 7.7x10^7 cm/s
- Electron plasma frequency: 12 GHz
- Electron cyclotron frequency: 2.8 GHz
- Electron Larmour radius: 5.8x10^-3 cm
- Electron thermal speed: 1.0x10^8 cm/s
- Electron inertial length: 3.8x10^-1 cm
- Alfven speed: 7.7x10^7 cm/s
- Ion plasma frequency: 149 MHz
- Ion cyclotron frequency: 384 KHz
- Ion Larmour radius: 2.0x10^-1 cm
- Ion thermal speed: 4.9x10^5 cm/s
- Ion inertial length: 32 cm
- Ion sound speed: 1.2x10^6 cm/s