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