Drift velocity of free electrons in liquid argon
نویسنده
چکیده
A measurement of the drift velocity of free electrons in liquid argon has been performed. Free electrons have been produced by photoelectric e ect using laser light in a so called \laser chamber". The results on the drift velocity vd are given as a function of the electric eld strength in the range 0:5 kV=cm j ~ Ej 12:6 kV=cm and the temperature in the range 87 K T 94 K. A global parametrization of vd(j ~ Ej; T ) has been tted to the data. A temperature dependence of the electron drift velocity is observed, with a mean value of vd=( T vd) = ( 1:72 0:08)%=K in the range of 87 94 K.
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تاریخ انتشار 1999