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Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
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Chimie
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Journal JoVE Chimie
Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident

DOI:
10.3791/54807-v

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09:18 min

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December 14, 2017

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, , , , , ,
1European Commission, Joint Research Centre, 2Energy Department,Politecnico di Milano, 3Department of Chemical Physics,Sapienza – Università di Roma, 4CEA Saclay, 5TU Delft

Chapitres

  • 00:05Titre
  • 01:09Pyrometer and Sample Preparation
  • 03:42Laser Heating and Radiance Spectro-pyrometry
  • 05:58Results: Emissivity and Phase Transition Analysis
  • 07:25Conclusion

Summary

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We present experiments in which real nuclear fuel, cladding, and containment materials are laser heated to temperatures beyond 3,000 K while their behavior is studied by radiance spectroscopy and thermal analysis. These experiments simulate, on a laboratory scale, the formation of a lava-phase following a nuclear reactor core meltdown.

Tags

Laser-heatingRadiance SpectrometryNuclear MaterialsNuclear Power Plant AccidentCore MeltdownCoriumThermomechanical StabilityRefractory CeramicsHigh-temperature SuperalloysAerospace CoatingsHigh TemperaturesThermodynamic EquilibriumTwo-channel PyrometerSpectro-pyrometerControlled Atmosphere Autoclave ReactorLaser-absorbing Graphite ScreenHigh-power Laser Fiber-optic SystemArgon Ion LaserOptical Alignment

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