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RESEARCH PRODUCT
Drift velocity of free electrons in liquid argon
W. Walkowiaksubject
Free electron modelPhysicsNuclear and High Energy PhysicsDrift velocityCalorimetryPhotoelectric effectLaserlaw.inventionlawElectric fieldLiquid argonDetectors and Experimental TechniquesAtomic physicsInstrumentationLaser lightdescription
Abstract A measurement of the drift velocity of free electrons in liquid argon has been performed. Free electrons have been produced by photoelectric effect using laser light in a so-called “laser chamber”. The results on the drift velocity vd are given as a function of the electric field strength in the range 0.5 kV / cm ⩽| E |⩽12.6 kV / cm and the temperature in the range 87 K ⩽T⩽94 K . A global parametrization of v d (| E |,T) has been fitted to the data. A temperature dependence of the electron drift velocity is observed, with a mean value of Δ v d /( Δ T v d )=(−1.72±0.08)%/ K in the range of 87–94 K.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-07-08 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |