Minor actinides incineration in neutron spectra of uranium235 or plutonium fission

Khorasanov, G.L.; Blokhin, Anatolij Ivanovich

doi:10.26583/npe.2013.3.12

Cited by 5 publications

(1 citation statement)

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“…The unique properties of 208 Pb as a promising coolant for fast reactor cores were addressed for the first time in (Shmelev et al 1993). It was shown earlier in (Khorasanov and Blokhin 2013a, 2013b, 2014a, 2014b, 2015, Khorasanov 2013, 2015 that the average neutron energy could be increased by 6 to 7% in the inner subcore of the RBETs-M fast reactor with natural circulation (Alekseev et al 2004) by substituting its standard lead-bismuth coolant for the 208 Pb enriched lead.…”

Section: Introductionmentioning

confidence: 96%

Reactor with metallic fuel and lead-208 coolant

Khorasanov

Blokhin

2019

YadEn

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The paper considers the concept of a fast lead cooled 25MW reactor for a variety of applications, including incineration of minor actinides, production of medical radioisotopes, testing of radiation-damaged nuclear technology materials, etc. A specific feature of the proposed reactor is rather a high neutron flux of 2.6•10 15 n/(cm 2 •s) at the core center, high average neutron energy of 0.95 MeV at the core center, and a large fraction (40%) of hard neutrons (E n > 0.8 MeV). The extremely high estimated reactor parameters are achieved thanks to the small core dimensions (DxH ≈ 0.50×0.42 m 2), innovative metallic fuel of the Pu-Am-Np-Zr alloy, and the 208 Pb enriched lead coolant. A relatively high probability of 241 Am fission (about 50%) is achieved in the reactor core's hard spectrum, this making it possible to incinerate up to 4 kg of 241 Am during one reactor campaign of 1000 effective days.

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Section: Introductionmentioning

confidence: 96%

Reactor with metallic fuel and lead-208 coolant

Khorasanov

Blokhin

2019

YadEn

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Reactor with metallic fuel and lead-208 coolant

Samokhin

Khorasanov

2020

Procedia Computer Science

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Application of Np–Am Mixture in Production of 238Pu in a VVER-1000 Reactor and the Reactivity Effect Caused by Loss-of-Coolant Accident in the Central Np–Am Fuel Assembly

Шмелев

Geraskin

Апсэ

et al. 2023

JNE

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This paper presents the results obtained from numerical evaluations for the possibility of large-scale 238Pu production in the light-water VVER-1000 reactor and the reactivity effect caused by the loss-of-coolant accident in the central fuel assembly of the reactor core. This fuel assembly containing the Np–Am-component of minor actinides was placed in the center of the reactor core and intended for intense production of 238Pu. Optimal conditions were found for large-scale production of plutonium with an isotope composition suitable for application in radioisotope thermoelectric generators. The reactivity effect from the loss-of-coolant accident in the central Np–Am fuel assembly was evaluated, and the perturbation theory was used to determine the contributions of some neutron processes (leakage, absorption, and moderation) to the total variation of the effective neutron multiplication factor.

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Minor actinides incineration in neutron spectra of uranium235 or plutonium fission

Cited by 5 publications

References 0 publications

Reactor with metallic fuel and lead-208 coolant

Reactor with metallic fuel and lead-208 coolant

Reactor with metallic fuel and lead-208 coolant

Application of Np–Am Mixture in Production of 238Pu in a VVER-1000 Reactor and the Reactivity Effect Caused by Loss-of-Coolant Accident in the Central Np–Am Fuel Assembly

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