b'Figure 2. TWIST assembled The module and instrumenta- device. Figure 2 shows the TWIST fuel specimen tion assembly for the first TWISTcomponents and assembled fuel commissioning test was completedspecimen. Thermocouples were at INL where instrumentation couldattached to the specimen cladding be tested and calibrated duringwith clips welded to the cladding assembly. Following instrumenta- tube to measure the specimen clad-tion assembly, all componentsding surface temperature response. were shipped to the Materials &Figure 3 shows the thermocouple Fuels Complex where the fuelattachment being performed. After specimen was fabricated, welded,thermocouple attachment the and assembled into the TWISTspecimen was inserted into the 104 2023|AFC ACCOMPLISHMENTS'