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Nuclear Fusion; v. 15(4); p. 697
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No abstract available
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Published in summary form only.
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Journal Article
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Nuclear Fusion; v. 15(4); p. 699
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McDaniel, Anthony H.
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States). Funding organisation: USDOE National Nuclear Security Administration (NNSA) (United States)2017
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States). Funding organisation: USDOE National Nuclear Security Administration (NNSA) (United States)2017
AbstractAbstract
[en] This research and development project is focused on the advancement of a technology that produces hydrogen at a cost that is competitive with fossil-based fuels for transportation. A twostep, solar-driven WS thermochemical cycle is theoretically capable of achieving an STH conversion ratio that exceeds the DOE target of 26% at a scale large enough to support an industrialized economy [1]. The challenge is to transition this technology from the laboratory to the marketplace and produce hydrogen at a cost that meets or exceeds DOE targets.
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30 Sep 2017; 8 p; OSTIID--1379457; AC04-94AL85000; Available from http://prod.sandia.gov/sand_doc/2017/179334r.pdf; PURL: http://www.osti.gov/servlets/purl/1379457/
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AbstractAbstract
[en] The core power levels of 600, 1,200 and 1,800 MWe were investigated with a TRU conversion ratio of about 0.6 in previous study. Even at each pre-determined power level, the performance parameters, reactivity coefficients and their implications on the safety analysis can be different when a target TRU conversion ratio changes. In order to address this aspect of a design, a variation study of a TRU conversion ratio change with core power levels is performed in this study and the core performance is investigated at various core powers
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Korean Nuclear Society, Daejeon (Korea, Republic of); [1 CD-ROM]; May 2009; [2 p.]; 2009 spring meeting of the KNS; Jeju (Korea, Republic of); 18-23 May 2009; Available from KNS, Daejeon (KR); 2 refs, 1 fig, 1 tab
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Angelkorte, G.M.
Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia1980
Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia1980
AbstractAbstract
[en] This work concerns to the determination of the conversion-rate for a PWR reactor with an enrichment of 7.47%, considering a cell, geometrically equal to Angra I, composed by Thorium and U-238 in a 1:1 relation. The study was performed considering neutrons of one and two groups of energy, according to the suggestion from other authors sup(1,2). It was also performed a study about the production and consumption of fissile material. (author)
Original Title
Razao de conversao em reatores tipo PWR no ciclo do torio
Primary Subject
Source
1980; 110 p; Available from the Library of Comissao Nacional de Energia Nuclear, RJ, Brazil; Tese (M.Sc.).
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Miscellaneous
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Thesis/Dissertation
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Slater, J.B.
Atomic Energy of Canada Ltd., Chalk River, Ontario. Chalk River Nuclear Labs.1977
Atomic Energy of Canada Ltd., Chalk River, Ontario. Chalk River Nuclear Labs.1977
AbstractAbstract
[en] This paper is concerned with the use of thorium as a fuel in the existing CANDU concept. The neutron balance of the reactor core is analyzed and an assessment is made of the potential for development of a thermal 'breeder' reactor system. It is concluded that while the SSET cycle (i.e. self-sufficient equilibrium thorium cycle) appears feasible, there is little potential for developing a significant 'breeding' fuel cycle if current reactor operating capability and capital costs are to be maintained. (author)
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Source
Feb 1977; 19 p; IAEA consultants meeting on the status and prospects of thermal breeders; Vienna, Austria; 15 Sep 1976
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AbstractAbstract
[en] In this letter, we report a full-metallic broadband wave plate assembled by standing metallic L-shaped stereostructures (LSSs). We show that with an array of LSSs, high polarization conversion ratio is achieved within a broad frequency band. Moreover, by rotating the orientation of the array of LSSs, the electric components of the reflection beam in two orthogonal directions and their phase difference can be independently tuned. In this way, all the polarization states on the Poincaré sphere can be realized. As examples, the functionalities of a quarter wave plate and a half wave plate are experimentally demonstrated with both reflection spectra and focal-plane-array imaging. Our designing provides a unique approach in realizing the broadband wave plate to manipulate the polarization state of light
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(c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
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Zhang, Yong; Yang, Lan; Li, Xian-Ke; Wang, Yu-Lin; Huang, Cheng-Ping, E-mail: yzhang@njtech.edu.cn, E-mail: cphuang@njtech.edu.cn2020
AbstractAbstract
[en] Single-layered metasurfaces are easier to fabricate than multi-layered ones but suffering from low efficiency and/or narrow bandwidth for transmissive polarization rotation. In this work, we propose a single-layered metasurface which can realize 90° polarization rotation with high efficiency, wide bandwidth, and ultra-high polarization conversion ratio in transmission mode. In addition, the single-layered metasurface can also be used as an efficient and wideband polarizer, which couples the two orthogonal electric components of incident light to the transmitted polarization. (paper)
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Source
Available from http://dx.doi.org/10.1088/2040-8986/ab68ee; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Journal of Optics (Online); ISSN 2040-8986;
; v. 22(3); [8 p.]

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Czock, K.H.; Haselberger, N.; Reichel, F.
International Atomic Energy Agency, International Nuclear Data Committee, Vienna (Austria)1974
International Atomic Energy Agency, International Nuclear Data Committee, Vienna (Austria)1974
AbstractAbstract
[en] A technique for determination of the disintegration rate of 103Rhm in thick foils is described. In addition values for the following parameters were determined: - total internal conversion coefficient α = 1531 ± 30; - K shell internal conversion coefficient αK = 127 ± 6; - conversion ratio R= K/L+M+..... = 0.0914 ± 0.0043. (author)
Primary Subject
Source
Sep 1974; 13 p; IAEA-RL--26; Also available on-line: https://www-nds.iaea.org/publications/indc/indc-iae-004G.pdf; 2 figs., 2 tabs., 29 refs.
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Report
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Rodrigues, V.G.; Stegemann, D.
Proceedings of the 7. National Meeting of Reactor Physics and Thermohydraulic. v. 11989
Proceedings of the 7. National Meeting of Reactor Physics and Thermohydraulic. v. 11989
AbstractAbstract
[en] The main goal of the Advanced High Converter Water Reactor is to increase the conversion ratio. Amelioration of the conversion ratio is only economically reasonable when the specific construction costs of conventional LWR plants remain almost unchanged, i.e., when the major system equipment does not become more complicated and more expensive. Having such boundary conditions in mind, this paper deals with the first neutronics features of the high converter boiling water reactor. The results shows that the physics of this type of reactor is promising. (author)
[pt]
Com o objetivo de aumentar a taxa de conversao dos reatores BWR, foi pesquisado a viabilidade neutronica de um reator BWR avancado ('Advanced Boiling Water Reactor' - ABWR). Devido a heterogeneidade da estrutura do nucleo do reator BWR, foi desenvolvido uma metodologia para minimizar a complexidade de calculo e atender a qualidade dos resultados. Na pesquisa foram realizados estudos para verificar a influencia de diversos parametros geometricos e fisicos. Os resultados revelaram que a viabilidade neutronica do reator conversor avancado e promissora. (autor)Original Title
Consideracoes neutronicas para o desenvolvimento de reatores BWR avancados
Primary Subject
Source
Pernambuco Univ., Recife (Brazil). Dept. de Energia Nuclear; 416 p; 1989; p. 337-348; 7. National Meeting of Reactor Physics and Thermohydraulic; Recife, PE (Brazil); 26-28 Apr 1989; Available from the Library of Comissao Nacional de Energia Nuclear, RJ, Brazil
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