Drift Velocity of Electrons in Nitrogen?Argon Mixtures
نویسندگان
چکیده
منابع مشابه
Drift velocity of free electrons in liquid argon
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 parametrizatio...
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We present measurements of drift velocities and gains in gas mixtures based on Ar and Xe, with CO2, CH4, and N2 as quenchers, and compare them with calculations. In particular, we show the dependence of Arand Xe-CO2 drift velocities and gains on the amount of nitrogen contamination in the gas, which in real experiments may build up through leaks. A quantification of the Penning mechanism which ...
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Electron drift velocities have been measured in liquid krypton, pure and mixed with methane at di!erent concentrations (1}10% in volume) versus electric "eld strength, and a possible e!ect of methane on electron lifetime has been investigated. While no e!ect on lifetime could be detected, since lifetimes were in all cases longer than what measurable, a very large increase in drift velocity (up ...
متن کاملDrift velocity of electrons in liquid argon , and the uuence of molecular impurities
The drift velocity of electrons has been measured in liquid argon and in liquid argon containing nitrogen, oxygen and hydrogen as impurities. It has been found that with nitrogen and hydrogen in solution the drift velocity increases, but that, because of strong electron attachment, inSui3cient oxygen could be added to produce an observable effect. The results support the view that the behaviour...
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For tracking in a SSC experiment with wire chambers, CF 4 gas mixtures are very advantageous from the point of view of aging, drift velocity, and spatial resolution. However, they are also known to suffer from considerable electron attachment. This attachment can cause serious inefficiencies in the collection of electrons liberated near the anode wire, and causes broadening of the pulse-height ...
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ژورنال
عنوان ژورنال: Australian Journal of Physics
سال: 1983
ISSN: 0004-9506
DOI: 10.1071/ph830297a