This document describes the technical design and the expected performance of the Endcap Disc DIRC (EDD) for the PANDA experiment. The EDD will provide particle identification for charged hadrons with momenta up to 4 GeV/c in the forward region in the polar angle range of 5° to 22°.
The proposed detector is a new development utilizing special focusing elements and highly segmented MCP-PMTs to allow a very compact design. The relevant components have been tested individually and as a joint system. According to our studies the final EDD will provide π/K separation of more than 3 standard deviations over the specified phase space. This is the final version submitted to ECE in August 2018.