POČASNA TRANSMUTACIJA IN KONVERZIJA 238 U V 235 U V REAKTORJIH Z ZELO NIZKIM FLUKSOM

  • Tomaž Žagar Jožef Stefan Institute
  • Joseph Magill European Commission, Joint Research Centre, Institute for Transuranium Elements

Povzetek

Članek predstavlja fiziko kritiēnih reaktorjev, ki delujejo pri zelo nizkem nevtronskem fluksu, veliko pod nivoji, ki se uporabljajo v komercialnih reaktorjih. V jedrskem reaktorju, ki deluje pri tako nizkem nevtronskem fluksu poteka poseben proces konverzije, v katerem iz oplodnega 238U nastaja novo jedrsko gorivo 235U. Proces je mogoē, ker pri nizkem fluksu reakcijska hitrost razpada 239Pu prevlada nad reakcijsko hitrostjo zajetja nevtronov in cepitve v 239Pu. Zaradi tega je reaktor, ki obratuje pri ekstremno nizkih fluksih “ēist” reaktor, ki praktiēno ne proizvaja visokih aktinidov. V naravi se je takšen proces odvijal v fosilnem reaktorju v Gabonu. V prispevku je teoretiēno preuēena tudi možnost izrabe omenjenega fizikalnega procesa v tako imenovanem aktivnem odlagališēu, v katerem bi dolgoživi radioaktivni odpadki v obliki višjih aktinidov zgorevali v kratkožive radioaktivne odpadke.lanek prikaže, da je takšno odlagališēe v praksi neuporabno.

Prenosi

Podatki o prenosih še niso na voljo.

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Objavljeno
2024-05-21
Kako citirati
Žagar T., & Magill J. (2024). POČASNA TRANSMUTACIJA IN KONVERZIJA 238 U V 235 U V REAKTORJIH Z ZELO NIZKIM FLUKSOM. Journal of Energy Technology, 1(1), 7-20. https://doi.org/10.18690/jet.1.1.7-20.2008
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