Laser Decontamination of a Fuel-Element Surface from Uranium-Plutonium Fuel Particles

Laser Decontamination of a Fuel-Element Surface from Uranium-Plutonium Fuel Particles

The results of experimental investigations of laser purification of the outer surface of a fuel-rod tube from microparticles are presented. It was shown experimentally that Nd laser radiation with intensity 17.8–27.8 kW/cm 2 and duration 1.5 msec removes adhered UO 2 microparticles from the surface...

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Veröffentlicht in:Atomic energy (New York, N.Y.) N.Y.), 2021-11, Vol.131 (1), p.27-31
Hauptverfasser: Myshkin, V. F., Pushkarev, A. I., Tuksov, I. V., Lukin, A. V., Khan, V. A., Khorokhorin, D. M., Eremeev, R. S., Lychagin, D. V.
Format: Artikel
Sprache:eng
Schlagworte:
Analysis
Boiling points
Carbon dioxide
Carbon dioxide lasers
Cerium oxides
Decontamination
Energy industry
Fuels
Hadrons
Heavy Ions
Laser beam heating
Laser beam welding
Laser radiation
Lasers
Microparticles
Neodymium lasers
Nuclear Chemistry
Nuclear Energy
Nuclear fuel elements
Nuclear fuels
Nuclear Physics
Nuclear power plants
Nuclear Science & Technology
Physics
Physics and Astronomy
Plutonium
Plutonium dioxide
Pulsed lasers
Radiation
Rapid prototyping
Science & Technology
Technology
Thorium oxides
Uranium
Uranium dioxide
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Beschreibung
Zusammenfassung:The results of experimental investigations of laser purification of the outer surface of a fuel-rod tube from microparticles are presented. It was shown experimentally that Nd laser radiation with intensity 17.8–27.8 kW/cm 2 and duration 1.5 msec removes adhered UO 2 microparticles from the surface of a fuel- rod tube. The processed fuel-element meets the roughness specifications. The heating of UO 2 , PuO 2 , ThO 2 , and CeO 2 microparticles by CO 2 laser radiation was modeled. Modeling shows that 10.6 μm pulsed laser radiation with duration 50 nsec can be used for laser decontamination of uranium-plutonium fuel microparticles welded into the weld seam. In addition, UO 2 and PuO 2 microparticles are simultaneously heated to the boiling point.
ISSN:1063-4258
1573-8205
DOI:10.1007/s10512-022-00837-9