  The Argonne micro-channel plate photomultiplier tube (MCP-PMT) is an offshoot
of the Large Area Pico-second Photo Detector (LAPPD) project, wherein \mbox{6
$\times$ 6 cm$^2$} 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 magnetic
fields are reported. In addition, possible applications of these devices in
future neutrino and collider physics experiments are discussed.
