Speaker
Andrey Elagin
(University of Chicago)
Description
The Gen-II LAPPD is a 20$\times$20 cm$^2$ MCP-based photo-detector that has a monolithic ceramic detector base with an anode capacitively coupled through a thin metal film to an application-specific readout pattern outside of the vacuum package.
We discuss the development of the *air-transfer* process for the Gen-II LAPPD assembly. In this process a hermetic seal between the top window with pre-deposited antimony layer and the detector base is made during the detector bake-out. Photo-cathode synthesis is then performed by introducing alkali metals into the sealed detector package through a small sealable vacuum port. We have demonstrated the feasibility of several critical process steps including demonstration of cesium transport from a source outside of the detector package to the entire surface of the detector window in the presence of two full-size 20$\times$20 cm$^2$ MCPs inside the detector.
Primary authors
Andrey Elagin
(University of Chicago)
Eric Spieglan
(University of Chicago)
Evan Angelico
(University of Chicago)
Prof.
Henry Frisch
(Enrico Fermi Institute and Argonne National Lab)