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Title: Accelerator-driven transmutation of spent fuel elements

Abstract

An apparatus and method is described for transmuting higher actinides, plutonium and selected fission products in a liquid-fuel subcritical assembly. Uranium may also be enriched, thereby providing new fuel for use in conventional nuclear power plants. An accelerator provides the additional neutrons required to perform the processes. The size of the accelerator needed to complete fuel cycle closure depends on the neutron efficiency of the supported reactors and on the neutron spectrum of the actinide transmutation apparatus. Treatment of spent fuel from light water reactors (LWRs) using uranium-based fuel will require the largest accelerator power, whereas neutron-efficient high temperature gas reactors (HTGRs) or CANDU reactors will require the smallest accelerator power, especially if thorium is introduced into the newly generated fuel according to the teachings of the present invention. Fast spectrum actinide transmutation apparatus (based on liquid-metal fuel) will take full advantage of the accelerator-produced source neutrons and provide maximum utilization of the actinide-generated fission neutrons. However, near-thermal transmutation apparatus will require lower standing

Inventors:
 [1];  [1];  [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
874692
Patent Number(s):
6442226
Assignee:
The Regents of the University of California (Los Alamos, NM)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25C - PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
accelerator-driven; transmutation; spent; fuel; elements; apparatus; method; described; transmuting; actinides; plutonium; selected; fission; products; liquid-fuel; subcritical; assembly; uranium; enriched; providing; conventional; nuclear; power; plants; accelerator; provides; additional; neutrons; required; perform; processes; size; complete; cycle; closure; depends; neutron; efficiency; supported; reactors; spectrum; actinide; treatment; light; water; lwrs; uranium-based; require; largest; neutron-efficient; temperature; gas; htgrs; candu; especially; thorium; introduced; newly; generated; teachings; fast; based; liquid-metal; advantage; accelerator-produced; source; provide; maximum; utilization; actinide-generated; near-thermal; standing; fuel element; power plant; spent fuel; light water; /376/

Citation Formats

Venneri, Francesco, Williamson, Mark A, and Li, Ning. Accelerator-driven transmutation of spent fuel elements. United States: N. p., 2002. Web.
Venneri, Francesco, Williamson, Mark A, & Li, Ning. Accelerator-driven transmutation of spent fuel elements. United States.
Venneri, Francesco, Williamson, Mark A, and Li, Ning. Tue . "Accelerator-driven transmutation of spent fuel elements". United States. https://www.osti.gov/servlets/purl/874692.
@article{osti_874692,
title = {Accelerator-driven transmutation of spent fuel elements},
author = {Venneri, Francesco and Williamson, Mark A and Li, Ning},
abstractNote = {An apparatus and method is described for transmuting higher actinides, plutonium and selected fission products in a liquid-fuel subcritical assembly. Uranium may also be enriched, thereby providing new fuel for use in conventional nuclear power plants. An accelerator provides the additional neutrons required to perform the processes. The size of the accelerator needed to complete fuel cycle closure depends on the neutron efficiency of the supported reactors and on the neutron spectrum of the actinide transmutation apparatus. Treatment of spent fuel from light water reactors (LWRs) using uranium-based fuel will require the largest accelerator power, whereas neutron-efficient high temperature gas reactors (HTGRs) or CANDU reactors will require the smallest accelerator power, especially if thorium is introduced into the newly generated fuel according to the teachings of the present invention. Fast spectrum actinide transmutation apparatus (based on liquid-metal fuel) will take full advantage of the accelerator-produced source neutrons and provide maximum utilization of the actinide-generated fission neutrons. However, near-thermal transmutation apparatus will require lower standing},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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