A Strategy for Weapons-grade Plutonium Disposition PDF Download

Author: Kory William Budlong Sylvester
Publisher:
ISBN:
Category :
Languages : en
Pages : 188

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Author: Kory William Budlong Sylvester
Publisher:
ISBN:
Category :
Languages : en
Pages : 224

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Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 96

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Book Description
A political as well as technical analysis was performed to determine the feasibility of glassification (vitrification) for weapons grade plutonium (WGPu) disposition. The political analysis provided the criteria necessary to compare alternative storage forms. The technical areas of weapon useability and environmental safety were then computationally and experimentally explored and a vitrification implementation strategy postulated. The Monte Carlo Neutron Photon (MCNP) computer code was used to model the effect of blending WGPu with reactor grade Pu (RGPu). A mixture of 30% RGPu and 70% WGPu more than doubled the surface flux from a bare sphere of the mixture which assumedly correlates to a significantly increased predetonation probability. Rare earth diluents were also examined (using MCNP) for their ability to increase the compressed critical mass of the WGPu mixture. The rare earths (notably Eu) were effective in this regard. As Pu-239 has a 24,100 year half life, reactivity control in the long term is an environmental safety issue. Rare earths were investigated as criticality controllers due to their neutron absorption capabilities and insolubility in aqueous environments. Thorium (a Pu surrogate) and the rare earths Eu, Gd, and Sm were added to two standard frits (ARM-1 and SRL-165) and formed into glass. Aqueous leach tests were performed (using MCC-1P guidelines) to measure rare earth leaching and determine the added elements' effects on glass durability. Europium was much more leach resistant than boron in the glasses tested. The elements had no negative effect on the environmental durability of the glasses tested at 90 C and minimal effect at room temperature. No fission product releases were detected in the ARM-1 compositions (which contained numerous simulated fission products).

Author: CSIS Senior Policy Panel on the Safe, Timely, and Effective Disposition of Surplus U.S. and Russian Weapons-Grade Plutonium
Publisher: CSIS
ISBN: 9780892063369
Category : Political Science
Languages : en
Pages : 68

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Author: William J. Weida
Publisher: Routledge
ISBN: 0429816766
Category : Social Science
Languages : en
Pages : 290

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First published in 1997, this volume observes that of all the materials, systems and facilities that designed and operated nuclear weapons, the most readily available assets for reuse are often identified as the highly enriched uranium (HEU) and plutonium from warheads. However, proliferation concerns the reuse of much of this material unlikely. This book explores the economic issues surrounding the major expenditures facing the US as it attempts to dispose of weapon-grade nuclear materials in a proliferation-resistant manner. The book discusses the economic values of plutonium and HEU, the economic nature of the nuclear industry, reprocessing and operations costs, the economics of ‘burning’ plutonium to generate electrical power, the economics of down-blending and ‘burning’ HEU, military conversion as a rationale for selecting plutonium disposition options, the economics of transmutation, and the economics of other proposals ranging from monitored surface storage to vitrification. The book concludes by identifying the major cost drivers affecting all disposition options.

Author: United States Government Accountability
Publisher: CreateSpace
ISBN: 9781503371804
Category :
Languages : en
Pages : 56

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The end of the cold war left the United States with a surplus of weapons-grade plutonium. Much of this material is found in a key nuclear weapon component known as a pit. In 1997, DOE announced a plan to dispose of surplus, weapons-grade plutonium through an approach that included fabrication of plutonium into MOX fuel for use in domestic commercial nuclear reactors. In 2000, the United States and Russia entered into a Plutonium Management and Disposition Agreement, in which each country pledged to dispose of at least 34 metric tons of surplus, weapons-grade plutonium. Through a protocol to the agreement signed in 2010, the United States and Russia reaffirmed their commitment to dispose of surplus, weapons-grade plutonium as MOX fuel in nuclear reactors, and the agreement entered into force in 2011.

Author: United States. Congress. House. Committee on Armed Services. Strategic Forces Subcommittee
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 120

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 41

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Book Description
A comprehensive case study was conducted on the policy problem of disposing of US weapons-grade plutonium, which has been declared surplus to strategic defense needs. Specifically, implementation of the mixed-oxide fuel disposition option was examined in the context of national and international nonproliferation policy, and in contrast to US plutonium policy. The study reveals numerous difficulties in achieving effective implementation of the mixed-oxide fuel option including unresolved licensing and regulatory issues, technological uncertainties, public opposition, potentially conflicting federal policies, and the need for international assurances of reciprocal plutonium disposition activities. It is believed that these difficulties can be resolved in time so that the implementation of the mixed-oxide fuel option can eventually be effective in accomplishing its policy objective.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 104

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The Department of Energy (DOE) has proposed irradiation of mixed-oxide (MOX) fuel in existing commercial reactors as a disposition method for surplus plutonium from the weapons program. The burning of MOX fuel in reactors is supported by an extensive technology base; however, the infrastructure required to implement reactor-based plutonium disposition does not exist domestically. This report identifies and examines the actions required to qualify and license weapons-grade (WG) plutonium-based MOX fuels for use in domestic commercial light-water reactors (LWRs).

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 16

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Book Description
The US surplus plutonium disposition program was created to reduce the proliferation risk posed by the fissile material from thousands of retired nuclear weapons. The Department of Energy has decided to process its Put into a form as secure as Pu in civilian spent fuel. While implementation issues have been considered, a major one (Russian reciprocity) remains unresolved. Russia has made disposition action conditional on extracting the fuel value of its Pu but lacks the infrastructure to do so. Assistance in the construction of the required facilities would conflict with official US policy opposing the development of a Pu fuel cycle. The resulting stagnation provides impetus for a reevaluation of US nonproliferation objectives and Pu disposition options. A strategy for satisfying Russian fuel value concerns and reducing the proliferation risk posed by surplus weapons-grade plutonium (WGPu) is proposed. The effectiveness of material alteration (e.g., isotopic, chemical, etc.{hor_ellipsis}) at reducing the desire, ability and opportunity for proliferation is assessed. Virtually all the security benefits attainable by material processing can be obtained by immobilizing Pu in large unit size/mass monoliths without a radiation barrier. Russia would be allowed to extract the Pu at a future date for use as fuel in a verifiable manner. Remote tracking capability, if proven feasible, would further improve safeguarding capability. As an alternate approach, the US could compensate Russia for its Pu, allowing it to be disposed of or processed elsewhere. A market based method for pricing Pu is proposed. Surplus Pu could represent access to nuclear fuel at a fixed price at a future date. This position can be replicated in the uranium market and priced using derivative theory. The proposed strategy attempts to meet nonproliferation objectives by recognizing technical limitations and satisfying political constraints.