WATCHMAN 2

WATCHMAN 2

Detail of a possible configuration of the photomultiplier tube mounting structure for the WATCHMAN

This graphic shows the detail of a possible configuration of the photomultiplier tube mounting structure for the WATCHMAN antineutrino detector, a key part of the Advanced Instrumentation Testbed, a new international multi-laboratory and university collaboration for nonproliferation research. Modules containing sets of photomultiplier tubes are securely bolted to cables which run the vertical length of the detector – like a giant Christmas decoration that absorbs light rather than emitting it. These drawings were created by Jim Brennan of Sandia National Laboratories, California branch.

IMAGE: Jim Brennan, Sandia National Laboratories, California