  A modern cold triple axis spectrometer is being planned for the High Flux
Isotope Reactor (HFIR) at Oak Ridge National Laboratory. Here, we describe the
design of an incident beamline that will put a flux of $\sim
10^8\mathrm{\frac{n}{cm^2 s}}$ on a sample with an area of 2 cm x 2 cm. It
takes current physical constraints at HFIR into account and it can accommodate
both single and multiplexed analyzer-detector secondary spectrometers and large
superconducting magnets. The proposed incident beamline includes a
multi-channel guide with horizontal focusing, a neutron velocity selector,
components to facilitate an incident beam polarization option, and a
double-focusing pyrolytic graphite monochromator. This work describes the
process of optimizing the guide system and monochromator and summarizes the
expected performance of the incident beamline for non-polarized operation.
