Transport properties of electrons in CF4
T. Caldwell, A. Roccaro, T. Sahin, H. Yegoryan, D. Dujmic, S. Ahlen,, J. Battat, P. Fisher, S. Henderson, A. Kaboth, G. Kohse, R. Lanza, J. Lopez,, J. Monroe, G. Sciolla, N. Skvorodnev, H. Tomita, R. Vanderspek, H., Wellenstein, R. Yamamoto
TL;DR
This paper investigates the transport properties of electrons in CF4 gas, measuring mean energy and attenuation coefficients to improve understanding for particle detector applications.
Contribution
It provides new experimental measurements of electron mean energy and attenuation coefficients in CF4, which were previously not well characterized.
Findings
Measured electron mean energy in CF4
Determined attenuation coefficient of electron propagation
Results aid in optimizing particle detector performance
Abstract
Carbon-tetrafluoride (CF4) is used as a counting gas in particle detectors, but some of its properties that are of interest for large time-projection chambers are not well known. We measure the mean energy, which is proportional to the diffusion coefficent, and the attentuation coefficient of electron propagation in CF4 gas using a 10-liter dark matter detector prototype of the DMTPC project.
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Taxonomy
TopicsHigh voltage insulation and dielectric phenomena · Plasma Diagnostics and Applications · Membrane Separation and Gas Transport