  Tests of a prototype lead tungstate calorimeter were made over two weeks at
the end of September, 2019, at the DESY II Test Beam Facility in Hamburg,
Germany. The purpose of these tests was to gain experience with the
construction, operation, and performance of a simple lead tungstate
calorimeter, and also to compare a traditional triggered readout scheme with a
streaming readout approach. These tests are important for the proposed
Two-Photon Exchange experiment at DESY and for work towards a future
electromagnetic calorimeter that could be used in an Electron-Ion Collider
detector. Details on the comparison of streaming and triggered readout schemes
are presented here.
