Accelerator-driven subcritical fission in molten salt core: Closing the nuclear fuel cycle for green nuclear energy

McIntyre, P.; Assadi, S.; Badgley, Karie; Baker, William K.; Comeaux, Justin; Gerity, James; Kellams, Joshua; McInturff, A. D.; Pogue, Nathaniel; Phongikaroon, Supathorn; Sattarov, Akhdiyor; Simpson, Michael F.; Wood, Elizabeth Sooby; Tsvetkov, Pavel V.

doi:10.1063/1.4802405

Cited by 12 publications

(6 citation statements)

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“…AmBe neutron source with neutron emissivity of 5.6 • 10 6 s -1 was used. It is made of 833 mg of AmO 2 and 7374 mg of 9 Be encased in stainless steel cylinder which has diameter of 19.1 mm and height of 48.6 mm.…”

Section: Methodsmentioning

confidence: 99%

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Effect of Nacl on Neutron Flux Density in Graphite Block

Slančík

Števanka

2019

APP

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Aim of this work is to study the effect of NaCl on neutron flux through graphite block. Graphite block had 39 channels drilled through it and filled with NaCl. Au and In foils and In wire was used for neutron activation measurement of the neutron flux. AmBe neutron source with nominal activity of 92.5 GBq was used. The results were compared with MCNP simulations with channels filled with salt and air. Twelve different locations for Au and In foils were used and In wires were place in three locations to measure vertical profile of neutron flux.

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Section: Methodsmentioning

confidence: 99%

“…Among the concepts that plan to utilize chlorides are MSFR by Terrapower, LLC and SSR by Moltex Energy Ltd [7,8]. Apart from usage in MSRs, chlorides can also be used in accelerator-driven systems [9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Nacl on Neutron Flux Density in Graphite Block

Slančík

Števanka

2019

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“…The remaining 4% of the neutrons must be generated by spallation, so the ADSMS core operates as an energy amplifier. Companion papers at this conference present an overview of the ADSMS fuel cycle [1], details of the pyroprocessing method used to extract transuranics from the fuel pins of UNF [2], and the strong-focusing cyclotron that is used to produce the drive beams to sustain fission in the core [3]. In this paper we present the neutronics that optimizes the destruction of transuranics in the core.…”

Section: Introductionmentioning

confidence: 98%

Neutronics of accelerator-driven subcritical fission for burning transuranics in used nuclear fuel

Sattarov¹,

Assadi²,

Badgley³

et al. 2013

AIP Conference Proceedings

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We report the development of a conceptual design for accelerator-driven subcritical fission in a molten salt core (ADSMS). ADSMS is capable of destroying all of the transuranics at the same rate and proportion as they are produced in a conventional nuclear power plant. The ADSMS core is fueled solely by transuranics extracted from used nuclear fuel and reduces its radiotoxicity by a factor 10,000. ADSMS offers a way to close the nuclear fuel cycle so that the full energy potential in the fertile fuels uranium and thorium can be recovered.

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“…In the generation IV nuclear power plant designs, molten salt reactors (MSRs) have all these attributes. An example of such a reactor is at the Accelerator Research Laboratory (ARL), Texas A&M University (TAMU), where a method for accelerator-based destruction of actinides in molten salt (ADAM) to burn transuranium elements has been developed . Although most of the research on MSR technologies has been toward fluoride-based fuel salts, − chloride-based fuel salts have higher solubility for actinides, can operate at lower temperatures, and have higher volumetric heat capacity, while possessing good thermal conductivity and low viscosity. − All of these properties make chloride-based MSRs ideal for burning transuranium elements. , Despite this, there are still considerable knowledge gaps in the structures and properties of chloride salts at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

In Situ High-Temperature Raman Spectroscopy of UCl₃: A Combined Experimental and Theoretical Study

Strzelecki,

Wang,

Hickam

et al. 2023

Inorg. Chem.

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Uranium trichloride (UCl 3 ) has received growing interest for its use in uranium-fueled molten salt reactors and in the pyrochemical processing of used fuel. In this paper, we report for the first time the experimentally determined Raman spectra of UCl 3 , at both ambient condition and in situ high temperatures up to 871 K. The frequencies of five of the Raman-active vibrational modes (v i ) of UCl 3 exhibit a negative temperature derivative ((∂ν i / ∂T) P ) with increasing temperature. This red-shift behavior is likely due to the elongation of U−Cl bonds. The average isobaric mode Gruneisen parameter (γ iP = 0.91 ± 0.02) of UCl 3 was determined through use of the coefficient of thermal expansion published in Vogel et al. (2021) and the (∂ν i /∂T) P values determined in this study. These results are in general agreement with those calculated here by density functional theory (DFT+U). Finally, a comparison of the ambient band positions of UCl 3 to those of isostructural lanthanide (La−Eu) and actinide chlorides (Am−Cf) has been made.

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Accelerator-driven subcritical fission in molten salt core: Closing the nuclear fuel cycle for green nuclear energy

Cited by 12 publications

References 0 publications

Effect of Nacl on Neutron Flux Density in Graphite Block

Effect of Nacl on Neutron Flux Density in Graphite Block

Neutronics of accelerator-driven subcritical fission for burning transuranics in used nuclear fuel

In Situ High-Temperature Raman Spectroscopy of UCl₃: A Combined Experimental and Theoretical Study

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Accelerator-driven subcritical fission in molten salt core: Closing the nuclear fuel cycle for green nuclear energy

Cited by 12 publications

References 0 publications

Effect of Nacl on Neutron Flux Density in Graphite Block

Effect of Nacl on Neutron Flux Density in Graphite Block

Neutronics of accelerator-driven subcritical fission for burning transuranics in used nuclear fuel

In Situ High-Temperature Raman Spectroscopy of UCl3: A Combined Experimental and Theoretical Study

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Product

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In Situ High-Temperature Raman Spectroscopy of UCl₃: A Combined Experimental and Theoretical Study