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181
Evaluation of the Breeding Performance of a NaCl-UCl-Based Reactor System
Published 2019-10-01“…It is demonstrated that the identified and investigated NaCl-UCl based systems are feasible to deliver the requested in-core breeding within the given solubility limits of fertile material in the salt system using either uranium as start-up fissile component or plutonium. This result is enriched by the analysis of the achievable full power days per inserted mass of plutonium. …”
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182
Study on neutron absorption correction technology of the waste drum assay system
Published 2021-03-01“…Background Measurement of uranium and plutonium content in the waste drum assay system (WDAS) is affected by the absorption of the matrix in the drum due to the neutron coincidence counting of waste. …”
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186
Neutron Resonance Transmission Analysis of Nuclear Material Using a Portable D-T Neutron Generator
Published 2023“…The feasibility of the portable NRTA system for a number of nonpro- liferation and safeguards applications was evaluated by assaying various uranium and plutonium targets. The system successfully assayed both depleted and high enriched uranium and reactor-grade plutonium targets, accurately determining the enrichment and fissile mass content as validated by chemical analysis. …”
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187
ANALYSIS OF THE RESULTS OF LONG-LIVED RADIONUCLIDE BODY BURDEN MONITORING IN RESIDENTS OF THE URALS REGION
Published 2018-10-01“…The second group comprised residents of the Ozyorsk city, for whom the levels of inhalation intake of plutonium in the period 1951–1958 reached 8 Bq/year. …”
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188
Incidence trend for colorectal cancer in the cohort of workers exposed to ionizing radiation
Published 2020-10-01“…The cohort comprised 22,377 workers (25% of females) employed at one of the main plants (reactors, radiochemical and plutonium production plants) of the Mayak Production Association in 1948-1982 who had been externally exposed to gamma rays (cumulative absorbed colon doses were 0–5.85 Gy with the corresponding median dose of 0.16 Gy) and those who had inhaled aerosols containing plutonium particles had been also internally exposed to alpha radiation (cumulative absorbed colon doses were 0–0.18 Gy with the corresponding median dose of 0.0002 Gy). …”
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189
APPLICATION OF SOLID-STATE TRACK DETECTORS FOR MEASUREMENT OF THE LOW-LEVEL ACTIVITY OF ALPHA-EMITTERS
Published 2016-06-01“…Experimental information obtaining stages are described from solid state nuclear track detectors irradiation procedure to follow analysis of individual tracks. Results of plutonium isotopes contained samples and dependence of minimal detectible activity from exposure time and spike (tracer) activity for nuclide are presented.…”
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190
A new simulation model for calculating the internal exposure of some radionuclides
Published 2009-01-01“…The radionuclides under investigation are: cobalt, iodine, cesium, strontium, ruthenium, radium, thorium, plutonium, and uranium. The committed effective dose has been calculated by our model so as to obtain the urinary and faecal excretion rates for each radionuclide. …”
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191
Design and calibration of a depth-of-interaction detector for neutrons and gamma rays
Published 2023-07-01“…Of these incidents, 278 are associated with trafficking or malicious use of materials such as highly enriched uranium, plutonium, and plutonium-beryllium neutron sources. …”
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192
A Systematic Study of Moderation Effects On Neutronic Performance of UO[subscript 2] Fueled Lattices
Published 2012“…However, high burnup is significantly beneficial as a way to make the plutonium isotopic mix less attractive as a weapon material.…”
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193
Malleability of uranium: Manipulating the charge-density wave in epitaxial films
Published 2014“…Our results emphasize the intriguing possibilities of producing epitaxial films of elements that have complex structures like the light actinides uranium to plutonium. © 2014 American Physical Society.…”
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The Peculiarities of the German Uranium Project (1939–1945)
Published 2023-09-01“…There was no work at all on a possible bomb, nor on plutonium. The reactor experiments were limited to subcritical systems and did not attempt to achieve the proclaimed goal of a self-sustaining chain reaction. …”
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196
A study on the feasibility of using Uranium Nitride (UN) fuel in Pressurized water reactors (PWR)
Published 2023-04-01“…Neutron spectrum, power distributions, plutonium isotopes productions, and kinetics and safety parameters were evaluated. …”
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197
Performance Evaluation of an Imaging Radiation Portal Monitor System
Published 2022-09-01“…The technique enables rapid detection and precise location of small amounts of special nuclear materials, such as plutonium, using time and energy correlations between fast neutrons and gamma rays from spontaneous fission with low false-alarm rates. …”
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198
A NOVEL APPROACH TO FIND OPTIMIZED NEUTRON ENERGY GROUP STRUCTURE IN MOX THERMAL LATTICES USING SWARM INTELLIGENCE
Published 2013-12-01“…It is known that UO2–PUO2 (MOX) is a recently developed fuel which consumes recycled plutonium. For such fuel which contains various resonant nuclides, the selection of energy group structure is more crucial comparing to the UO2 fuels. …”
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199
A Nuclear Material Accounting Simulation Model for Spent Fuel Reprocessing Facility
Published 2022-10-01“… In order to optimize the nuclear material accounting of spent fuel reprocessing facilities and find the main factors of the material unaccounted for (MUF), a numerical simulation model based on nuclear material accounting perspective is built, which includes the front-end process, PUREX process, uranium and plutonium back-end and MUF calculations. The material flow rate in the model can be changed easily by changing different process parameters to simulate different production scale. …”
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The concept of a fast reactor with liquid metal fuel in tungsten capsules
Published 2023-01-01“…It is proposed to use liquid fuel based on waste uranium and plutonium extracted from the spent fuel of VVER reactors (purified from the 238Pu isotope). …”
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