Speaker
Summary
Lead-bismuth eutectic (LBE) is a promising coolant for next-generation fast reactors due to its excellent thermophysical properties, but understanding the behavior of volatile fission products such as tellurium (Te) is essential for ensuring reactor safety. Through thermosublimatography and transpiration experiments, we examined Te evaporation and speciation in LBE over a wide temperature range. Results show that Te predominantly volatilizes as PbTe rather than as elemental Te, significantly reducing its release, by roughly three orders of magnitude at 380 °C. The influence of water vapor and surface materials was also evident, emphasizing the need for proper cover-gas conditioning and material selection to control Te transport and ensure safe operation in lead-alloy fast reactors.
| Are you interested/eligible for the Young Session? | Yes, I am eligible and interested in participating |
|---|
