Showing 201 - 220 results of 325 for search '"plutonium"', query time: 0.07s Refine Results
  1. 201

    Do the various radiations present in BNCT act synergistically? Cell survival experiments in mixed alpha-particle and gamma-ray fields. by Phoenix, B, Green, S, Hill, M, Jones, B, Mill, A, Stevens, D

    Published 2009
    “…An irradiation setup has been created at the Medical Research Council in Harwell to allow simultaneous irradiation of cells by cobalt-60 gamma rays and plutonium-238 alpha-particles. The setup allows for variation of dose and dose rates for both sources along with variation of the alpha particle energy. …”
    Conference item
  2. 202

    Reaction Mechanism of H2C2O4 Oxidized by HNO2 via Mn2+ as Catalyst by HAO Shuai;LI Bin;LI Xianjun;LIU Zhanyuan;LIU Min;JIANG Dongmei;XIA Liangshu

    Published 2023-03-01
    “…For example, in order to recovery plutonium oxalate precipitated mother liquor before returning, it is necessary to reduce the H2C2O4 concentration from 0.1 mol/L to about 10-4 mol/L. …”
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    Article
  3. 203

    Analysis of Barite Concrete as a Potential Neutron Radiation Shielding Material for BNCT Facilities by Rini Murtafi'atin, Widarto Widarto, Susilo Susilo, Ngurah Made Dharma Putra

    Published 2019-04-01
    “…The experiment consisted of two parts, namely density analysis and determination of the neutron attenuation coefficient. For the latter, plutonium-beryllium was used as the neutron source, while a high purity germanium detector was used to measure the neutron radiation level. …”
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    Article
  4. 204

    Progress and Development of Electrorefiner in Dry Reprocessing Process by ZHANG Jin-yu, LIN Ru-shan, ZHANG Lei, TANG Hong-bin, YE Guo-an

    Published 2023-04-01
    “…Fast reactor spent fuel with high burnup has the characteristics of high plutonium content, high radioactivity and high heat release rate. …”
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    Article
  5. 205

    Medium-Temperature Glass-Composite Phosphate Materials for the Immobilization of Chloride Radioactive Waste by Anna V. Frolova, Ksenia Y. Belova, Sergey E. Vinokurov

    Published 2023-09-01
    “…The possibility of immobilizing the spent chloride electrolyte after the pyrochemical processing of the mixed uranium-plutonium spent nuclear fuel of the new fast reactor BREST-OD-300 on lead coolant into glass-composite phosphate materials synthesized at temperatures of 650–750 °C was studied. …”
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    Article
  6. 206

    Long term comparison between reprocessed nuclear fuel cycles by Fidéllis Bitencourt Gonzaga Louzada e Estanislau, Carlos Eduardo Velasquez, Antonella Lombardi Costa, Claubia Pereira

    Published 2022-10-01
    “…The nuclear fuel cycles compared are: i) a closed fuel cycle with recovering of plutonium (Pu) to fabricate the mixed oxide (MOX) fuel; ii) a closed fuel cycle with recovering of a transuranic matrix to fabricate the transuranic fuel spiked with depleted uranium (TRU-U)O2. …”
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    Article
  7. 207

    Cross-section calculations of photofission reactions for 238,239,240,241,242,244Pu isotopes using nuclear level density by D. Canbula, B. Canbula

    Published 2022-03-01
    “…CSCFGM is a nuclear level density model, that includes collective (rotational and vibrational) effects as well as the pairing and shell effects, and is used to analyse the (γ, f) reactions of plutonium isotopes. The experimental data for all reactions are taken from EXFOR library. …”
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    Article
  8. 208

    Mortality of employees of the Atomic Weapons Establishment, 1951-82. by Beral, V, Fraser, P, Carpenter, L, Booth, M, Brown, A, Rose, G

    Published 1988
    “…Among workers who had a radiation record 3742 (40%) were also monitored for possible internal exposure to plutonium, 3044 (32%) to uranium, 1562 (17%) to tritium, 638 (7%) to polonium, and 281 (3%) to actinium. …”
    Journal article
  9. 209

    Demonstrative Application to an OECD/NEA Reactor Physics Benchmark of the 2nd-BERRU-PM Method—II: Nominal Computations Apparently Inconsistent with Measurements by Ruixian Fang, Dan G. Cacuci

    Published 2023-07-01
    “…This work presents illustrative applications of the 2nd-BERRU-PM (second-order best-estimate results with reduced uncertainties predictive modeling) methodology to the leakage response of a polyethylene-reflected plutonium OECD/NEA reactor physics benchmark, which is modeled using the neutron transport Boltzmann equation. …”
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    Article
  10. 210

    Demonstrative Application to an OECD/NEA Reactor Physics Benchmark of the 2nd-BERRU-PM Method—I: Nominal Computations Consistent with Measurements by Dan G. Cacuci, Ruixian Fang

    Published 2023-07-01
    “…This work illustrates the applications of the 2nd-BERRU-PM methodology to polyethylene-reflected plutonium (PERP) OECD/NEA reactor physics benchmark. …”
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    Article
  11. 211

    INTERNATIONAL ISOTOPES MARKETS by S. Z. Zhiznin, V. M. Timohov

    Published 2016-10-01
    “…The paper also analyzes the statistical data on the global export and import of natural uranium, enriched and depleted uranium, plutonium, thorium and some stable isotopes of non-medical purposes, presented by a company «Trend economy» in 2014. …”
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    Article
  12. 212

    Uranium Enrichment Signatures of Fluorinated Epoxy by Reinfurt, Daniel Robert

    Published 2023
    “…However, while there are well defined forensic techniques for estimating and verifying the production of plutonium, there are currently no such techniques for the production of enriched uranium, despite the fact that many nations have used uranium enrichment to acquire weapons. …”
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    Thesis
  13. 213

    Estimation of resources and reserves

    Published 2011
    “…Uranium is either seen as scarce, implying the necessity of the breeder reactor, or it is seen as plentiful, implying no need for plutonium in reactors. Motivating these statements, which profoundly affect the tenor of our future, is an interpretation of how resources and reserves are estimated. …”
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  14. 214

    ON THE USE OF THORIUM IN LIGHT WATER REACTORS by Kazimi, Mujid S., Czerwinski, Kenneth R., Driscoll, Michael J., Hejzla, P., Meyer, J. E.

    Published 2012
    “…The recent motivation for re-examining the use of thorium in light water reactors' once-through fuel cycle is enhancing the cycle proliferationresistance due to reduced plutonium production. Additionally, economic benefits from reducing the initial enrichment needs of high burnup fuels may be obtained. …”
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  15. 215

    Selection of Correlations and Look-Up Tables for Critical Heat Flux Prediction in the Generation IV "IRIS" Reactor by Romano, A., Todreas, Neil E.

    Published 2012
    “…B&B refers to a once-through fuel cycle where low enriched uranium (less than 5 w/o 235U in U) subcritical assemblies are loaded into the core in equilibrium, yet in-situ plutonium breeding carries the fuel through a discharge burnup on the order of 150 MWD/kgHM. …”
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    Technical Report
  16. 216

    XPS Investigation of ceramic matrixes for disposal of long-living radioactive waste products by Teterin Yury A., Stefanovskij Serguei V., Yudintsev Serguei V., Bek-Uzarov George N., Teterin Anton Yu, Maslakov Konstantin I., Utkin Igor O.

    Published 2004-01-01
    “…It is necessary for synthesis of ceramic matrixes, for the disposal of the plutonium and others tetravalent actinides. A technique was developed for the determination of cerium oxidation state (Ce3+ and Ce4+) on the basis of the X-ray photo electron spectroscopy spectral structure characteristics. …”
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    Article
  17. 217

    Coupling reactor design and scenario calculations: a promising method for scenario optimization by Tirel Kévin, Kooyman Timothée, Coquelet-Pascal Christine, Merle Elsa

    Published 2022-01-01
    “…In this paper, the flexible reactor model construction is detailed and the interest of such method is highlighted with an application case that consists in the transition from a PWR fleet, similar to the French one, towards a PWR − SFR fleet stabilizing plutonium inventory.…”
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    Article
  18. 218

    Detectors from CdTe and CdZnTe for spectrometry gamma and alpha of radiations by V. V. Levenets, O. P. Omelnyk, A. O. Shchur, V. M. Borysenko, V. E. Kutny, A. V. Rybka, I. N. Shlyakhov, O. O. Zakharchenko

    Published 2007-12-01
    “…It was shown, that such detectors may be used for the solution of analytical problems with definition of elements from lanthanum up to plutonium with recording X-ray of K-series and a spectrometry of particles in the method of NRA and at identification of isotopes.…”
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    Article
  19. 219

    An extensive characterization of xenon isotopic activity ratios from nuclear explosion and nuclear reactors in neighboring countries of South Korea by Ser Gi Hong, Geon Hee Park, Sang Woo Kim, Yu Yeon Cho

    Published 2024-02-01
    “…The considered sources of the xenon radionuclides do not only include PWR, CANDU, and nuclear explosions using uranium and plutonium bombs, but also IRT-200 and 5MWe Yongbyon (MAGNOX reactor) research reactors operated in North Korea. …”
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    Article
  20. 220

    Analyzing the Nuclear Weapons Proliferation Risk Posed by a Mature Fusion Technology and Economy by Mark Diesendorf, David Roser, Haydn Washington

    Published 2023-01-01
    “…In the medium term, an MFE could (1) facilitate construction of large, efficient, and reliable nuclear arsenals by producing tritium and the fissile materials Plutonium-239 and Uranium-233; and (2) erode the barriers constraining nuclear weapons acquisition by facilitating the spread of nuclear knowledge, technologies, and materials. …”
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    Article