Characterisation and testing of a prototype 6×6 cm2 Argonne MCP-PMT

The Argonne micro-channel plate photomultiplier tube (MCP-PMT) is an offshoot of the Large Area Pico-second Photo Detector (LAPPD) project, wherein 6×6 cm2 sized detectors are made at Argonne National Laboratory. Measurements of the properties of these detectors, including gain, time and spatial resolution, dark count rates, cross-talk and sensitivity to fringe magnetic fields are reported. In addition, possible applications of these devices in future neutrino and collider physics experiments are discussed.