  The Argonne MCP-based photo detector is an offshoot of the Large Area
Pico-second Photo Detector (LAPPD) project, wherein 6 cm x 6 cm sized detectors
are made at Argonne National Laboratory. We have successfully built and tested
our first detectors for pico-second timing and few mm spatial resolution. We
discuss our efforts to customize these detectors to operate in a cryogenic
environment. Initial plans aim to operate in liquid argon. We are also
exploring ways to mitigate wave length shifting requirements and also
developing bare-MCP photodetectors to operate in a gaseous cryogenic
environment.
