Matches in SemOpenAlex for { <https://semopenalex.org/work/W1489530090> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W1489530090 abstract "Neutron Resonance Transmission Analysis (NRTA) is an analytical technique that uses neutrons to assay the isotopic content of bulk materials. The technique uses a pulsed accelerator to produce an intense, short pulse of neutrons in a time-of-flight configuration. These neutrons, traveling at different speeds according to their energy, can be used to interrogate a spent fuel (SF) assembly to determine its plutonium content. Neutron transmission through the assembly is monitored as a function of neutron energy (time after the pulse), similar to the way neutron cross-section data is often collected. The transmitted neutron intensity is recorded as a function of time, with faster (higher-energy) neutrons arriving first and slower (lower-energy) neutrons arriving later. The low-energy elastic scattering and absorption resonances of plutonium and other isotopes modulate the transmitted neutron spectrum. Plutonium content in SF can be determined by analyzing this attenuation. Work is currently underway at Idaho National Laboratory, as a part of United States Department of Energy's Next Generation Safeguards Initiative (NGSI), to investigate the NRTA technique and to assess its feasibility for quantifying the plutonium content in SF and for determining the diversion of SF pins from assemblies. Preliminary results indicate that NRTA has great potential for beingmore » able to assay intact SF assemblies. Operating in the 1-40 eV range, it can identify four plutonium isotopes (239, 240, 241, & 242Pu), three uranium isotopes (235, 236, & 238U), and six resonant fission products (99Tc, 103Rh, 131Xe, 133Cs, 145Nd, and 152Sm). It can determine the areal density or mass of these isotopes in single- or multiple-pin integral transmission scans. Further, multiple observables exist to allow the detection of material diversion (pin defects) including fast-neutron and x-ray radiography, gross-transmission neutron counting, plutonium resonance absorption analysis, and fission-product resonance absorption analysis. Initial benchmark modeling has shown excellent agreement with previously published experimental data for measurements of individual SF pins where plutonium assays were experimentally demonstrated to have a precision of better than 3%.« less" @default.
- W1489530090 created "2016-06-24" @default.
- W1489530090 creator A5049124595 @default.
- W1489530090 creator A5085632430 @default.
- W1489530090 date "2011-05-01" @default.
- W1489530090 modified "2023-09-27" @default.
- W1489530090 title "Neutron Resonance Transmission Analysis (NRTA): Initial Studies of a Method for Assaying Plutonium in Spent Fuel" @default.
- W1489530090 hasPublicationYear "2011" @default.
- W1489530090 type Work @default.
- W1489530090 sameAs 1489530090 @default.
- W1489530090 citedByCount "0" @default.
- W1489530090 crossrefType "journal-article" @default.
- W1489530090 hasAuthorship W1489530090A5049124595 @default.
- W1489530090 hasAuthorship W1489530090A5085632430 @default.
- W1489530090 hasConcept C114529599 @default.
- W1489530090 hasConcept C116915560 @default.
- W1489530090 hasConcept C121332964 @default.
- W1489530090 hasConcept C12294094 @default.
- W1489530090 hasConcept C127413603 @default.
- W1489530090 hasConcept C152568617 @default.
- W1489530090 hasConcept C177322064 @default.
- W1489530090 hasConcept C181833780 @default.
- W1489530090 hasConcept C185544564 @default.
- W1489530090 hasConcept C185592680 @default.
- W1489530090 hasConcept C27251351 @default.
- W1489530090 hasConcept C30421969 @default.
- W1489530090 hasConcept C39104958 @default.
- W1489530090 hasConcept C540271850 @default.
- W1489530090 hasConcept C5688416 @default.
- W1489530090 hasConcept C7083945 @default.
- W1489530090 hasConceptScore W1489530090C114529599 @default.
- W1489530090 hasConceptScore W1489530090C116915560 @default.
- W1489530090 hasConceptScore W1489530090C121332964 @default.
- W1489530090 hasConceptScore W1489530090C12294094 @default.
- W1489530090 hasConceptScore W1489530090C127413603 @default.
- W1489530090 hasConceptScore W1489530090C152568617 @default.
- W1489530090 hasConceptScore W1489530090C177322064 @default.
- W1489530090 hasConceptScore W1489530090C181833780 @default.
- W1489530090 hasConceptScore W1489530090C185544564 @default.
- W1489530090 hasConceptScore W1489530090C185592680 @default.
- W1489530090 hasConceptScore W1489530090C27251351 @default.
- W1489530090 hasConceptScore W1489530090C30421969 @default.
- W1489530090 hasConceptScore W1489530090C39104958 @default.
- W1489530090 hasConceptScore W1489530090C540271850 @default.
- W1489530090 hasConceptScore W1489530090C5688416 @default.
- W1489530090 hasConceptScore W1489530090C7083945 @default.
- W1489530090 hasLocation W14895300901 @default.
- W1489530090 hasOpenAccess W1489530090 @default.
- W1489530090 hasPrimaryLocation W14895300901 @default.
- W1489530090 hasRelatedWork W1972444826 @default.
- W1489530090 hasRelatedWork W1998539024 @default.
- W1489530090 hasRelatedWork W2002564321 @default.
- W1489530090 hasRelatedWork W2075142745 @default.
- W1489530090 hasRelatedWork W2274502637 @default.
- W1489530090 hasRelatedWork W2883169370 @default.
- W1489530090 hasRelatedWork W2909838934 @default.
- W1489530090 hasRelatedWork W2935295118 @default.
- W1489530090 hasRelatedWork W2941502196 @default.
- W1489530090 hasRelatedWork W2950020771 @default.
- W1489530090 hasRelatedWork W2950689726 @default.
- W1489530090 hasRelatedWork W3022132010 @default.
- W1489530090 hasRelatedWork W3044855355 @default.
- W1489530090 hasRelatedWork W3139956364 @default.
- W1489530090 hasRelatedWork W837263458 @default.
- W1489530090 hasRelatedWork W988091577 @default.
- W1489530090 hasRelatedWork W1834626768 @default.
- W1489530090 hasRelatedWork W2551515191 @default.
- W1489530090 hasRelatedWork W3114882428 @default.
- W1489530090 hasRelatedWork W3131321424 @default.
- W1489530090 isParatext "false" @default.
- W1489530090 isRetracted "false" @default.
- W1489530090 magId "1489530090" @default.
- W1489530090 workType "article" @default.