b'Figure 2. Images of as-received and burst Zircaloy-4 tubes with associated structured light scanning images of burst area. Burst area is measured from the re-constructed object from the structured light scan.cladding. Four Type-S thermocouplescladding burst. The temperature and were secured onto the cladding viapressure profile for LOCA test sequenceUse of the Severe Pt-Rh wire and were used to controlis shown in Figure 1. Accident Test Station and monitor the temperature duringIn-cell SATS testing was used toboth in and outtesting while a transducer was used togenerate burst and fuel fragmentationof cell allows for monitor internal cladding pressure.data from high burnup fuels.Thisevaluation of cladding Testing was conducted at several initialdata will enable the industry andperformanceinternal cladding pressures to captureregulatory agencies to best address fuelunder conditions and quantify burst behavior over afragmentation in standard LWR fuelrelevant to design basis range of temperatures, with replicatedesigns irradiated to high burnup. Thisaccident scenarios and tests being performed at all pressuresapproach proposes reconditioning ofcomparison of ATF for coated and uncoated tubes. The fullreactor-irradiated fuel at specific powerconcepts to currentout-of-cell LOCA burst testing sequencelevels and simulated LOCA testing inLWR cladding materials.included internal pressurization at roomhot-cell furnaces and Transient Reactor temperature, 5C/s temperature rampTest Facility (TREAT) testing at Idaho to 100C followed by a hold, and thenNational Laboratory (INL).another 5C/s temperature ramp toA high burnup pressurized water 300C, also followed by a hold. Then,reactor H. B. Robinson (HBR) segment the temperature was ramped at 5C/swas refabricated into a LOCA test train to 1200C, significantly increasing(HBR#1).Test train fabrication included cladding internal pressure resulting in 2019|AFC ACCOMPLISHMENTS 143'