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You searched for subject:(Antineutrino Safeguards). Showing records 1 – 2 of 2 total matches.

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1. Stewart, Christopher L. Antineutrino-based safeguards for ultra-high burnup fast reactors.

Degree: PhD, Mechanical Engineering, 2016, Georgia Tech

Since the first observation of antineutrinos from beta decay of the fission products inside a nuclear reactor in 1956, the design and operating experience of antineutrino detectors near reactors has increased to the point where monitoring the reactor's power level and progression through its burnup cycle has become possible. With the expected increase in world nuclear energy capacity, including the dissemination of reactor technologies to non-nuclear states, the need for safeguards measures which are able to provide continuous, near-real-time information about the state of the core, including its isotopic composition, in a tamper- and spoof-resistant manner is evident. Near-field (~20 m from the core) antineutrino detectors are able to fulfill this demand without perturbing normal reactor operation, without requiring instrumentation which penetrates the reactor vessel, and without displacing other plant structures. Two sodium-cooled long-life fast reactors that are characteristic of next-generation reactors which are attractive for installation in non-nuclear states, one large and one small power rating, have been modeled throughout their reference burnup cycles using MCC-3 and DIF3D/REBUS. Various diversions of fissile material from the core designed to obtain weapons-usable material for the purpose of nuclear proliferation were studied as perturbed core states. The difference in detector event rates between the reference and perturbed states was used to determine the probability that a particular diversionary activity would be apparent before the material could be converted into a weapon. These data indicate which types of diversion antineutrino safeguards are particularly strong against and how the technology might be implemented in current and future international policies concerning nuclear proliferation. Advisors/Committee Members: Erickson, Anna S. (advisor), Hertel, Nolan E. (committee member), Huber, Patrick (committee member), Petrovic, Bojan (committee member), Stulberg, Adam (committee member).

Subjects/Keywords: Nuclear reactor safeguards; Antineutrino monitoring

…approximate the background for antineutrino safeguards applications… …which types of diversion antineutrino safeguards are particularly strong against and how the… …safeguards technologies. 1.4 Development of antineutrino detectors for safeguards As the number… …Over reactor-detector standoffs relevant to single-plant antineutrino safeguards, oscillation… …ANTINEUTRINO SAFEGUARDS IN NONPROLIFERATION POLICY Antineutrino detectors of varying size and range… 

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Stewart, C. L. (2016). Antineutrino-based safeguards for ultra-high burnup fast reactors. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/55024

Chicago Manual of Style (16th Edition):

Stewart, Christopher L. “Antineutrino-based safeguards for ultra-high burnup fast reactors.” 2016. Doctoral Dissertation, Georgia Tech. Accessed July 22, 2019. http://hdl.handle.net/1853/55024.

MLA Handbook (7th Edition):

Stewart, Christopher L. “Antineutrino-based safeguards for ultra-high burnup fast reactors.” 2016. Web. 22 Jul 2019.

Vancouver:

Stewart CL. Antineutrino-based safeguards for ultra-high burnup fast reactors. [Internet] [Doctoral dissertation]. Georgia Tech; 2016. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/1853/55024.

Council of Science Editors:

Stewart CL. Antineutrino-based safeguards for ultra-high burnup fast reactors. [Doctoral Dissertation]. Georgia Tech; 2016. Available from: http://hdl.handle.net/1853/55024


Virginia Tech

2. Jaffke, Patrick John. Corrections to and Applications of the Antineutrino Spectrum Generated by Nuclear Reactors.

Degree: PhD, Physics, 2015, Virginia Tech

In this work, the antineutrino spectrum as specifically generated by nuclear reactors is studied. The topics covered include corrections and higher-order effects in reactor antineutrino experiments, one of which is covered in Ref. [1] and another contributes to Ref. [2]. In addition, a practical application, antineutrino safeguards for nuclear reactors, as summarized in Ref. [3,4] and Ref. [5], is explored to determine its viability and limits. The work will focus heavily on theory, simulation, and statistical analyses to explain the corrections, their origins, and their sizes, as well as the applications of the antineutrino signal from nuclear reactors. Chapter [1] serves as an introduction to neutrinos. Their origin is briefly covered, along with neutrino properties and some experimental highlights. The next chapter, Chapter [2], will specifically cover antineutrinos as generated in nuclear reactors. In this chapter, the production and detection methods of reactor neutrinos are introduced as well as a discussion of the theories behind determining the antineutrino spectrum. The mathematical formulation of neutrino oscillation will also be introduced and explained. The first half of this work focuses on two corrections to the reactor antineutrino spectrum. These corrections are generated from two specific sources and are thus named the spent nuclear fuel contribution and the non-linear correction for their respective sources. Chapter [3] contains a discussion of the spent fuel contribution. This correction arises from spent nuclear fuel near the reactor site and involves a detailed application of spent fuel to current reactor antineutrino experiments. Chapter [4] will focus on the non-linear correction, which is caused by neutron-captures within the nuclear reactor environment. Its quantification and impact on future antineutrino experiments are discussed. The research projects presented in the second half, Chapter [5], focus on neutrino applications, specifically reactor monitoring. Chapter [5] is a comprehensive examination of the use of antineutrinos as a reactor safeguards mechanism. This chapter will include the theory behind safeguards, the statistical derivation of power and plutonium measurements, the details of reactor simulations, and the future outlook for non-proliferation through antineutrino monitoring. Advisors/Committee Members: Huber, Patrick (committeechair), Link, Jonathan M. (committee member), Piilonen, Leo E. (committee member), Sharpe, Eric R. (committee member).

Subjects/Keywords: Neutrino Physics; Reactor Physics; Spent Nuclear Fuel Correction; Non-linear Correction; Antineutrino Safeguards; Nuclear Non-proliferation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Jaffke, P. J. (2015). Corrections to and Applications of the Antineutrino Spectrum Generated by Nuclear Reactors. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/80031

Chicago Manual of Style (16th Edition):

Jaffke, Patrick John. “Corrections to and Applications of the Antineutrino Spectrum Generated by Nuclear Reactors.” 2015. Doctoral Dissertation, Virginia Tech. Accessed July 22, 2019. http://hdl.handle.net/10919/80031.

MLA Handbook (7th Edition):

Jaffke, Patrick John. “Corrections to and Applications of the Antineutrino Spectrum Generated by Nuclear Reactors.” 2015. Web. 22 Jul 2019.

Vancouver:

Jaffke PJ. Corrections to and Applications of the Antineutrino Spectrum Generated by Nuclear Reactors. [Internet] [Doctoral dissertation]. Virginia Tech; 2015. [cited 2019 Jul 22]. Available from: http://hdl.handle.net/10919/80031.

Council of Science Editors:

Jaffke PJ. Corrections to and Applications of the Antineutrino Spectrum Generated by Nuclear Reactors. [Doctoral Dissertation]. Virginia Tech; 2015. Available from: http://hdl.handle.net/10919/80031

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