  The Hamamatsu R11410 photomultiplier, a tube of 3" diameter and with a very
low intrinsic radioactivity, is an interesting light sensor candidate for
future experiments using liquid xenon (LXe) as target for direct dark matter
searches. We have performed several experiments with the R11410 with the goal
of testing its performance in environments similar to a dark matter detector
setup. In particular, we examined its long-term behavior and stability in LXe
and its response in various electric field configurations.
