Fusion–Fission Hybrid Systems for Transmutation

Velasquez, Carlos E.; Pereira, Cláubia; Veloso, Maria Auxiliadora F.; Costa, Antonella Lombardi; Barros, Graiciany de Paula

doi:10.1007/s10894-016-0080-3

Cited by 13 publications

(10 citation statements)

References 15 publications

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“…they produce less energy than the required amount for sustaining the reaction, but the knowledge on this technology will be largely expanded with the International Thermonuclear Experimental Reactor (ITER) that is under construction in southern France with the first plasma discharge planned by 2025 [4]. Besides the main goal of producing net energy on a commercial scale, some studies proposed and showed the feasibility of the transmutation of higher long-term radiotoxicity into shorter lived nuclides using fusion reactors helping to manage the nuclear spent fuel [5][6][7]. The main challenge for materials scientists with respect to this technology is the plasma confinement.…”

Section: Introductionmentioning

confidence: 99%

EBSD characterization of pure and K-doped tungsten fibers annealed at different temperatures

Tanure

Terentyev

Nikolić

et al. 2020

Journal of Nuclear Materials

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Section: Introductionmentioning

confidence: 99%

EBSD characterization of pure and K-doped tungsten fibers annealed at different temperatures

Tanure

Terentyev

Nikolić

et al. 2020

Journal of Nuclear Materials

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“…The figure and the table clearly show that the selected composition provided k eff = 0.95 required for hybrid systems (Gudowsky et al 2001, Moir et al 2012, Simonen et al 2013, Shmelev et al 2015, Knastera et al 2016, Velasquez et al 2016. In this case, the plutonium content in the Th (1-a) -Pu a composition was 4%.…”

Section: Steady-state Neutronic Characteristicsmentioning

confidence: 84%

Power density dynamics in a nuclear reactor with an extended in-core pulse-periodic neutron source based on a magnetic trap

Shamanin¹,

Bedenko²,

Shmakov³

et al. 2020

NUCET

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The article examines the features of the spatial kinetics of an innovative hybrid nuclear power facility with an extended neutron source based on a magnetic trap. The fusion-fission facility under study includes a reactor plant, the core of which consists of an assembly of thorium-plutonium fuel blocks of the HGTRU reactor of a unified design and a long magnetic trap that penetrates the near-axial region of the core. The engineering solution for the neutron plasma generator is based on an operating gas-dynamic trap based on a fusion neutron source (GDT-FNS) developed at the Novosibirsk G.I. Budker Nuclear Physics Institute of the Siberian Branch of the Russian Academy of Sciences. The GDT-FNS high-temperature plasma pinch is formed in pulse-periodic mode in the investigated hybrid facility configuration, and, at a certain pulse rate, one should expect the formation of a fission wave that diverges from the axial part of the system and propagates throughout the fuel block assembly in a time correlation with the fast D-D neutron pulse source. In these conditions, it is essential to study the fission wave propagation process and, accordingly, the power density distribution formation within the facility blanket. The paper presents the results of a study on the steady-state and space-time performances of neutron fluxes and the power density dynamics in the facility under investigation. The steady-state neutronic performance and the space-time fission wave propagation were simulated using the PRIZMA software package developed at FSUE RFNC-VNIITF.

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“…However, there are also other research areas that have recently been the focus of some studies, such as fusion-fission hybrids, which seek to start introducing nuclear fusion in a more feasible manner and producing nuclear fuel for fission reactors, avoiding the need of reprocessing and, consequently, the proliferation risk [42][43][44].…”

Section: Advanced Cyclesmentioning

confidence: 99%

A Review of the Nuclear Fuel Cycle Strategies and the Spent Nuclear Fuel Management Technologies

Rodríguez‐Penalonga

Soria²

2017

Energies

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Nuclear power has been questioned almost since its beginnings and one of the major issues concerning its social acceptability around the world is nuclear waste management. In recent years, these issues have led to a rise in public opposition in some countries and, thus, nuclear energy has been facing even more challenges. However, continuous efforts in R&D (research and development) are resulting in new spent nuclear fuel (SNF) management technologies that might be the pathway towards helping the environment and the sustainability of nuclear energy. Thus, reprocessing and recycling of SNF could be one of the key points to improve the social acceptability of nuclear energy. Therefore, the purpose of this paper is to review the state of the nuclear waste management technologies, its evolution through time and the future advanced techniques that are currently under research, in order to obtain a global vision of the nuclear fuel cycle strategies available, their advantages and disadvantages, and their expected evolution in the future.

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Fusion–Fission Hybrid Systems for Transmutation

Cited by 13 publications

References 15 publications

EBSD characterization of pure and K-doped tungsten fibers annealed at different temperatures

EBSD characterization of pure and K-doped tungsten fibers annealed at different temperatures

Power density dynamics in a nuclear reactor with an extended in-core pulse-periodic neutron source based on a magnetic trap

A Review of the Nuclear Fuel Cycle Strategies and the Spent Nuclear Fuel Management Technologies

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