  The CCAT Collaboration's six-meter Fred Young Submillimeter Telescope is
scheduled to begin observing in the Chilean Atacama in 2025, targeting a
variety of science goals throughout cosmic history. Prime-Cam is a 1.8-meter
diameter cryostat that will host up to seven independent instrument modules
designed for simultaneous spectroscopic and broadband, polarimetric surveys at
millimeter to submillimeter wavelengths. The first of these instrument modules,
the 280 GHz module, will include ${\sim}$10,000 kinetic inductance detectors
(KIDs) across three arrays. While the first array was fabricated out of
tri-layer TiN/Ti/TiN, the other two arrays were fabricated out of a single
layer of Al. This combination of materials within the same instrument provides
a unique opportunity to directly compare the performance and noise properties
of two different detector materials that are seeing increasing use within the
field. We present preliminary comparisons here based on lab testing, along with
a discussion of the potential impacts on operation when observing and
translating raw data to science-grade maps.
