scholarly journals An Enhanced Safeguards Approach for Accelerator Driven Systems utilized to Close the Fuel Cycle.

2020 ◽  
Author(s):  
David Farley ◽  
Eva Uribe ◽  
Steven Horowitz ◽  
Alexander Solodov
2021 ◽  
Vol 13 (22) ◽  
pp. 12643
Author(s):  
Hamid Aït Abderrahim ◽  
Michel Giot

Closing the nuclear fuel cycle and transmuting Minor Actinides (M.As) can be considered as an application of the duty of care principlel principle which says that, “before the final disposal of any waste, any possible chemical and/or physical treatment has to be applied in order to reduce the waste’s toxicity, provided the treatment does not convey unacceptable risks or unacceptable costs”. Forty years of complex research and development has shown that Accelerator Driven Systems could provide a solution to the challenge posed by spent nuclear fuels, by enabling the ability to considerably decrease their radiotoxicity lifetime burden and volume. In particular, a multilateral strategy of treatment of the MAs could be a commendable solution for both the countries phasing out the exploitation of nuclear energy and for those pursuing and developing this exploitation. The pre-industrial assessment of the technical and financial feasibility for industrialization is the next step. This applies to the four R&D and Demonstration building blocks: advanced separation, MAs’ loaded fuel fabrication, dedicated transmuters demonstration (MYRRHA) and provision for MAs’ fuel loaded processing. A global vision of the process leading to a sustainable option is proposed.


2015 ◽  
Vol 08 ◽  
pp. 99-114 ◽  
Author(s):  
Florent Heidet ◽  
Nicholas R. Brown ◽  
Malek Haj Tahar

This article is a review of several accelerator–reactor interface issues and nuclear fuel cycle applications of accelerator-driven subcritical systems. The systems considered here have the primary goal of energy production, but that goal is accomplished via a specific application in various proposed nuclear fuel cycles, such as breed-and-burn of fertile material or burning of transuranic material. Several basic principles are reviewed, starting from the proton beam window including the target, blanket, reactor core, and up to the fuel cycle. We focus on issues of interest, such as the impact of the energy required to run the accelerator and associated systems on the potential electricity delivered to the grid. Accelerator-driven systems feature many of the constraints and issues associated with critical reactors, with the added challenges of subcritical operation and coupling to an accelerator. Reliable accelerator operation and avoidance of beam trips are critically important. One interesting challenge is measurement of blanket subcriticality level during operation. We also review the potential benefits of accelerator-driven systems in various nuclear fuel cycle applications. Ultimately, accelerator-driven subcritical systems with the goal of transmutation of transuranic material have lower 100,000-year radioactivity than a critical fast reactor with recycling of uranium and plutonium.


2012 ◽  
Vol 44 ◽  
pp. 12-21 ◽  
Author(s):  
Alberto Talamo ◽  
Yousry Gohar ◽  
Sandra Dulla ◽  
Piero Ravetto

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Şeref Okuducu ◽  
Nisa N. Aktı ◽  
Sabahattin Akbaş ◽  
M. Orhan Kansu

The nuclear level density parameters of some deformed isotopes of target nuclei (Pb, Bi) used on the accelerator-driven subcritical systems (ADSs) have been calculated taking into consideration different collective excitation modes of observed nuclear spectra near the neutron binding energy. The method used in the present work assumes equidistant spacing of the collective coupled state bands of the considered isotopes. The present calculated results for different collective excitation bands have been compared with the compiled values from the literature for s-wave neutron resonance data, and good agreement was found.


2003 ◽  
Vol 145 (3) ◽  
pp. 390-399 ◽  
Author(s):  
Per Seltborg ◽  
Jan Wallenius ◽  
Kamil Tucek ◽  
Waclaw Gudowski

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