b'Figure 3. Optical images of the heatedMoreover, as new accident tolerantlight emitting diode (LED) source TiHx sample at various stages in thefuel (ATF) variants of UO 2andprovides illumination. Opposite test. Images are shown at (a) the startother novel fuel technologies arethe LED is an instrumentation of heating, and at sample temperatures of (b) 400 , (c) 500 , (d) 600 , irradiated and sent of postirradiationcross that consists of the gas outlet, (e) 700 , and (f) 760 . Annotationsexamination, this capability willthermocouple leads, a sample in (a) indicate the foil location, asallow detailed examination ofgas chamber for system volume well as the alumina insulators for theoff-normal gas release behavior inanalysis, and two pressure meters thermocouple wires. The AlN sample plate is holding the TiHx sample and isthis fuel as well. (one full range to atmosphere and the only other feature in the imagesthe other a 1400 Pa capacitance Accomplishments: meter). The top of the cross goes to The system was successfullya viewport which is connected to built and demonstrated ona microscope onto which a camera two different sample sets: aand spectrometer are attached. The hydrogen-impregnated Ti foil andcamera views all visible light, and an irradiated fuel sample. Finalthe spectrometer receives infrared instrument configuration is shownlight for pyrometric evaluation.in Figure 1. The primary heating chamber consists of a 4-way vacuumDuring a test, the bottom of the cross. On one end of the cross across is loaded with a custom flange 98 2022|AFC ACCOMPLISHMENTS'