Just like the ICIT, the G-Ring In-Core Irradiation Tube (GRICIT) is an internally dry tube designed to irradiate samples in the reactor core at the highest neutron flux region.  The GRICIT is a 1.25 inch aluminum tube that runs from the reactor to the G-14 core position at the periphery of the core.  An offset bend, designed to limit radiation streaming, limits the sample size to a length of 4 inches.