PLASMA MEASUREMENT LABORATORY 001 / 001
Langmuir Probe Diagnostics.
Interrogate a simulated low-temperature plasma. Sweep the probe bias, isolate electron collection and recover the plasma parameters from the measured I–V curve.
RUNNING CONFIGURATIONARGON / BASELINERESEARCH INSTRUMENT · LP-45
PROBE BIAS
−18.0V
Relative to chamber groundCOLLECTED CURRENT
−0.48μA
Electron + ion contributionFLOATING POTENTIAL
−10.6V
Zero-net-current voltageDEBYE LENGTH
0.28mm
Shielding scale estimate01 / INSTRUMENT VIEW
DRAG TO ORBIT / SCROLL TO ZOOMVacuum discharge chamber
PAUSED · READYMAXWELLIAN / COLLISIONLESSDETECTING GPU…
02 / VOLT-AMPERE CHARACTERISTIC
Probe response / real-time scan
THEORETICAL RESPONSE INSTRUMENT READINGCLICK & DRAG TO SET BIAS
03 / DERIVED PLASMA PARAMETERS
FIT AVAILABLESweep inversion
ELECTRON TEMPERATURE / Te—eV
MODEL: 3.60 eV
ELECTRON DENSITY / ne—×10¹⁵ m⁻³
MODEL: 2.60 ×10¹⁵ m⁻³
PLASMA POTENTIAL / Vp—V
MODEL: 8.0 V
FIT QUALITY / R²—unitless
SMOOTHED SEMILOG