The ARGONTUBE detector
The next generation of LArTPCs with sensitive masses of the order of 10 kt to 100 kt introduce a number of new challenges. A major one is the long drift distance of 10m to 20m needed to reduce the number of read-out channels, and thus the cost, and allowing to build a detector with a large monolithic sensitive volume. An electric field strength of about 0.5 kV/cm to 1 kV/cm was found to be a good compromise to limit the amount of electron-ion recombination, to obtain a high drift velocity and to keep diffusion at a low level.
KeywordsDielectric Breakdown Liquid Argon Detector Operation High Voltage Generation Drift Distance
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