Electron avalanches in liquid argon mixtures
Description:
We have observed stable avalanche gain in liquid argon when mixed with small amounts of xenon in the high electric field (>7 MV/cm) near the point of a chemically etched needle in a point-plane geometry. We identify two gain mechanisms, one pressure dependent, and the other independent of the applied pressure. We conclude that the pressure dependent signals are from avalanche gain in gas bubbles at the tip of the needle, while the pressure independent pulses are from avalanche gain in liquid…
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Date:
March 19, 2004
Creator:
Kim, J. G.; Dardin, S. M.; Kadel, R. W.; Kadyk, J. A.; Wenzel, W. B. & Peskov, V.
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