Готові списки джерел за темами / Neutron absorption

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Добірка наукової літератури з теми "Neutron absorption"

Автор: Grafiati

Опубліковано: 30 листопада 2024

Оновлено: 31 липня 2025

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Статті в журналах з теми "Neutron absorption"

Wang, Haoran, Shuo Zhao, Junqing Han, Yuying Wu, Xiangfa Liu, and Zuoshan Wei. "Neutron-Absorption Properties of B/Cu Composites." Materials 16, no. 4 (2023): 1443. http://dx.doi.org/10.3390/ma16041443.

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Copper has high electrical and thermal conductivity, which is frequently employed in structural and functional materials. In this research, powder metallurgy was used to incorporate boron nanosheets into metal matrix composites to create boron dispersion-enhanced copper matrix composites. The neutron-absorption characteristics of composite materials were investigated, as well as the link between neutron-absorption cross-section and neutron energy. The results told us that the morphology of the second phase on the particle surface is closely related to the size of Cu-B particles, copper and bor

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Selke, David L. "Physics Essay: Repulsionless Fusion by Neutron Absorption." Applied Physics Research 8, no. 6 (2016): 30. http://dx.doi.org/10.5539/apr.v8n6p30.

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It is possible to build Helium-4 from Hydrogen-1 by adding only neutrons. The key step is that Tritium decays to Helium-3; thus, a particle that entered the nucleus as a neutron becomes a proton. The need to overcome the mutual repulsion of positively charged nuclei is thus avoided. Given a cheap enough neutron source, this method promises fusion without Sun-like conditions.

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Mahdavi, Mohammad, and Maryam Shahbahrami. "Multiplication of Fast Neutrons Source Flux by Using Deuterium-Helium-3 Plasma." ISRN High Energy Physics 2013 (May 30, 2013): 1–4. http://dx.doi.org/10.1155/2013/689739.

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The production of fast neutrons source is examined by using a thermal neutron flux inside plasma. In order to reach a favorable yield of fast neutrons flux, the parameters such as energy loss rate, reaction probability, and neutron absorption length are calculated. The nuclear conversion efficiency, , of thermal neutron to fast neutrons is obtained to be by calculating the physical parameters for the plasma designed.

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Volz, Heather M., Sven C. Vogel, J. A. Roberts, A. C. Lawson, D. J. Williams, and L. L. Daemen. "Effect of Strong Neutron Absorption on Texture and Diffraction Data Analysis." Materials Science Forum 495-497 (September 2005): 119–24. http://dx.doi.org/10.4028/www.scientific.net/msf.495-497.119.

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The impact of strong neutron absorption on data analysis and the comparison of two different absorption corrections for neutron diffraction data implemented in the GSAS Rietveld code are the foci of this work. We investigated the effect of absorption on the texture and the thermal motion parameter for rolled elemental foils. The orientation distribution functions (ODF) of rolled foils of dysprosium and erbium metals were determined from neutron time-of-flight data patterns collected on HIPPO at LANSCE. Both Dy and Er are strong absorbers for thermal neutrons with absorption cross-sections of 9

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Mildner, D. F. R., H. Chen, R. G. Downing, and V. A. Sharov. "Developing a focused neutron probe for materials analysis." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1728–29. http://dx.doi.org/10.1017/s0424820100133278.

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Long wavelength neutrons have optical properties analogous to those of photons, and may be focused to produce significantly higher fluxes using the principle of multiple mirror reflection from smooth surfaces at small grazing incident angles. Narrowly focused beams of cold neutrons (with wavelengths greater than 0.4 nm) allow greater spatial resolution for analytical applications than previously available, and will improve the detection limits of neutron absorption measurements (which are dependent on the neutron capture reaction rate) for quantitative analysis. Since the absorption cross sect

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Piscitelli, F., A. Khaplanov, A. Devishvili, et al. "Neutron reflectometry on highly absorbing films and its application to 10 B 4 C-based neutron detectors." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2185 (2016): 20150711. http://dx.doi.org/10.1098/rspa.2015.0711.

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Neutron reflectometry is a powerful tool used for studies of surfaces and interfaces. The absorption in the typical studied materials is neglected and this technique is limited only to the reflectivity measurement. For strongly absorbing nuclei, the absorption can be directly measured by using the neutron-induced fluorescence technique which exploits the prompt particle emission of absorbing isotopes. This technique is emerging from soft matter and biology where highly absorbing nuclei, in very small quantities, are used as a label for buried layers. Nowadays, the importance of absorbing layer

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Shishido, Hiroaki, The Dang Vu, Kazuya Aizawa, et al. "Crystalline Orientation of CaF₂ window determined by Neutron Transmission Imaging using a Delay Line Current-Biased Kinetic-Inductance Detector." Journal of Physics: Conference Series 2545, no. 1 (2023): 012020. http://dx.doi.org/10.1088/1742-6596/2545/1/012020.

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Abstract The combination of a high speed two-dimensional neutron detector and an intensive pulsed neutron source provides not only neutron transmission imaging but also information on crystal structures, orientations and constituent elements by analyzing neutron transmission spectra. The delay-line current-biased kinetic-inductance detector (CB-KID) is a two-dimensional superconducting neutron detector with high spatial and temporal resolutions, and multi-hit tolerance. We demonstrated that the delay-line CB-KID with a 10B neutron conversion layer can be applied for neutron transmission measur

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Ekhwan Razali, Mohd, Roszilah Hamid, and Yusof Abdullah. "Mechanical Properties and Thermal Neutron Absorption of Heavyweight Hematite Aggregate Concrete for Radiation Shielding." International Journal of Engineering & Technology 8, no. 1.2 (2019): 123–30. http://dx.doi.org/10.14419/ijet.v8i1.2.24883.

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Heavyweight aggregate concrete (HWAC) is the most widely used material as radiation shielding for nuclear reactors. The density of HWAC is increased through the use of heavy natural aggregates such as barites, hematite and magnetite. This study determines the density of HWAC with hematite aggregate replacing granite at 0%, 10%, 20%, 30%, 40% and 50%, its compressive strength and thermal neutron absorption of 1 MeV fast neutrons. The physical properties of hematite which include gradation, specific gravity, water absorption and loose unit weight are determined. The chemical composition of hemat

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Laureau, Axel, Max Begue, Vincent Lamirand, Elsa Merle, and Oskari Pakari. "Fast simulation of neutron noise using the Transient Fission Matrix approach and validation on the CROCUS reactor." EPJ Web of Conferences 302 (2024): 08002. http://dx.doi.org/10.1051/epjconf/202430208002.

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This article presents the development of a neutron noise calculation technique with a reduced calculation time based on the TFM (Transient Fission Matrix) approach. The latter contains different information such as the system transfer function (fission and absorption probability density functions and corresponding neutron multiplicity) of prompt and delayed neutrons, and the corresponding propagation time. This information is used to reconstruct neutron showers based on precursor decays up to the shower disappearance by absorption, leakage or delayed neutron precursor creation. Then pseudo-det

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Volz, H. M., S. C. Vogel, C. T. Necker, et al. "Rietveld texture analysis by neutron diffraction of highly absorbing materials." Powder Diffraction 21, no. 2 (2006): 114–17. http://dx.doi.org/10.1154/1.2204058.

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We discuss the impact of strong absorption for thermal neutrons on data analysis and compare absorption corrections in the GSAS and MAUD Rietveld codes for texture and structural parameter refinement. Diffraction data were collected on the neutron powder diffractometer HIPPO at LANSCE from dysprosium and erbium, which are moderate-to-strong absorbers for thermal neutrons with absorption cross sections of 159 barns for Er and 994 barns for Dy at λ=1.8 Å. Both elements have hexagonal-close-packed (hcp) crystal structures, and the samples were various thicknesses of rolled foils. The orientation

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Дисертації з теми "Neutron absorption"

Paoli, M. P. "Electron-volt neutron spectroscopy of condensed matter." Thesis, University of Oxford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235080.

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MOREIRA, EDSON G. "Preparo e caracterizacao de um material de referencia de mexiliao Perna perna (Linnaeus, 1758)." reponame:Repositório Institucional do IPEN, 2010. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9529.

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Made available in DSpace on 2014-10-09T12:27:40Z (GMT). No. of bitstreams: 0 Made available in DSpace on 2014-10-09T14:05:26Z (GMT). No. of bitstreams: 0 Tese (Doutoramento) IPEN/T Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Schollier, Audrey. "Probing protein adsorption modes onto poly(ethylene glycol) brushes by neutron reflection." Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209952.

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Adsorption of proteins at interfaces has an important role in biotechnological and pharmaceutical applications. Indeed, several undesirable processes are related to protein adsorption, as for example: fouling of contact lenses, clotting on blood contacting devices, triggering inflammation around artificial organs, diminished circulation time of therapeutic proteins and drug bearing liposomes. Neutral water soluble polymers, such as poly(ethylene glycol) (PEG), are used to repress protein adsorption: by coating the surface with a polymer brush, a "cushion" is created between the protein and the

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CURCHO, MICHEL R. da S. M. "Avaliacao de micro e macroelementos, elementos toxicos (Cd, Hg e Pb) e acidos graxos, em peixes disponiveis comercialmente para consumo em Cananeia e Cubatao, Estado de Sao Paulo." reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9388.

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Made available in DSpace on 2014-10-09T12:26:26Z (GMT). No. of bitstreams: 0 Made available in DSpace on 2014-10-09T14:04:05Z (GMT). No. of bitstreams: 0 Dissertacao (Mestrado) IPEN/D Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Pavan, Lucia. "Study of external fields around magnetars and analysis of interstellar absorption." Doctoral thesis, Università degli studi di Padova, 2009. http://hdl.handle.net/11577/3425614.

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This thesis describes mainly two topics: the analysis of the external field of hyper-magnetized neutron stars (magnetars), and the distribution of galactic interstellar absorption. Magnetars have been introduced as a theoretical model to account for the peculiar characteristics of a limited group (~15 objects out of more than two thousands known) of isolated neutron stars. Though being so few, these objects are extensively studied due to their extreme properties. In the magnetar model, the emission of such sources is explained as energy released from the magnetic field (hence the name) rathe

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BOSTELMANN, ELEINE. "Avaliação da concentração de metais em amostras de sedimentos do reservatório Billings, Braço do Rio Grande, São Paulo, Brasil." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11410.

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Made available in DSpace on 2014-10-09T12:51:36Z (GMT). No. of bitstreams: 0 Made available in DSpace on 2014-10-09T13:58:36Z (GMT). No. of bitstreams: 0 Dissertacao (Mestrado) IPEN/D Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Swansbury, Laura Ann. "A structural investigation of chlorine-containing and fluorine-containing oxide glasses using molecular dynamics, neutron diffraction, and X-ray absorption spectroscopy." Thesis, University of Kent, 2017. https://kar.kent.ac.uk/65765/.

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Scientific developments have enabled glasses to fulfil an array of applications, from windows to bioactive glasses in regenerative medicine. To further exploit the capability of this versatile material, it is imperative that their structure is understood. In this thesis, the structure of three glass systems containing halides as anions were investigated. The first of these was the intermediate glass former ZnCl2 which was modelled computationally using classical molecular dynamics (MD). The addition of the adiabatic core-shell model was able to account for anion polarisability. This enabled th

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Buchanan, Piers. "The structure of liquid semiconductors, superionic conductors and glasses by neutron scattering, X-ray diffraction and extended X-ray absorption fine structure." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.392943.

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Černý, Tomáš. "Stínění a detekce neutronů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413124.

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The master’s thesis provides an overview of available neutron sources in terms of neutron yields and energy spectrum of emitted neutrons. Reactions of neutrons with matter, especially neutron scattering and radiation capture, are described. The possibilities neutron neutron detection and spectrometry are also described. The following experiment deals with a design of suitable shielding materials and the analysis of the moderated energy spectrum of neutron flux. The properties of the neutron field were measured using detection by activation. Subsequently, a simulation of the problem was perform

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ARINE, DJAIR R. "Analise de aguas de superficie e sedimentos de rios da regiao de Ipero, SP, por espectrometria de absorcao atomica e por ativacao neutronica." reponame:Repositório Institucional do IPEN, 2000. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10831.

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Made available in DSpace on 2014-10-09T12:44:29Z (GMT). No. of bitstreams: 0 Made available in DSpace on 2014-10-09T13:56:55Z (GMT). No. of bitstreams: 1 07067.pdf: 10073605 bytes, checksum: ca8a78a55e7fe440b75a43fc8c0a1340 (MD5) Dissertacao (Mestrado) IPEN/D Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Книги з теми "Neutron absorption"

Tripathi, Ram K. New parameterization of neutron absorption cross sections. National Aeronautics and Space Administration, Langley Research Center, 1997.

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Tripathi, Ram K. New parameterization of neutron absorption cross sections. National Aeronautics and Space Administration, 1997.

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Wilson, John W. Nucleon-nucleus interaction data base: Total nuclear and absorption cross sections. Langley Research Center, 1988.

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United States. National Aeronautics and Space Administration., ed. High-energy astrophysics: A theoretical analysis of thermal radiation from neutron stars : annual status report for NAGW-3075. National Aeronautics and Space Administration, 1994.

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Tripathi, Ram K. Universal parameterization of absorption cross sections. National Aeronautics and Space Administration, Langley Research Center, 1997.

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W, Townsend Lawrence, Wilson J. W, and United States. National Aeronautics and Space Administration. Scientific and Technical Information Program., eds. Target correlation effects on neutron-nucleus total, absorption, and abrasion cross sections. National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1991.

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Tripathi, Ram K. Universal parameterization of absorption cross sections: Light systems. National Aeronautics and Space Administration, Langley Research Center, 1999.

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F, Hepp Aloysius, and United States. National Aeronautics and Space Administration., eds. Near-edge study of gold-substituted YBa₂Cu₃O₇₋(delta). NASA, 1991.

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F, Hepp Aloysius, and United States. National Aeronautics and Space Administration., eds. Near-edge study of gold-substituted YBa₂Cu₃O₇₋(delta). NASA, 1991.

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Частини книг з теми "Neutron absorption"

Swinhoe, M. T., J. D. Hutchinson, and P. M. Rinard. "Neutron Interactions with Matter." In Nondestructive Assay of Nuclear Materials for Safeguards and Security. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58277-6_14.

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AbstractThis chapter describes the interactions that neutrons have with matter. There is a description of microscopic interactions, such as fission, scattering and absorption, using the concept of cross-section. The idea of individual neutron interactions is extended to the macroscopic behavior of neutrons, giving rise to the calculation of reaction rates and mean free paths. The important quantities of moderation and neutron multiplication are introduced. There is a brief discussion of neutron shielding and transport calculational techniques.

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Okajima, Shigeaki, Teruhiko Kugo, and Takamasa Mori. "Neutron Moderation and Resonance Absorption." In An Advanced Course in Nuclear Engineering. Springer Japan, 2024. https://doi.org/10.1007/978-4-431-55600-8_5.

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Kobayashi, Tooru, Shusuke Fujihara, and Keiji Kanda. "Effective Thermal Neutron Collimation for Neutron Capture Therapy Using Neutron Absorption and Scattering Reactions." In Progress in Neutron Capture Therapy for Cancer. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3384-9_19.

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de Groot, F., and J. Vogel. "Fundamentals of X-ray Absorption and Dichroism: The Multiplet Approach." In Neutron and X-ray Spectroscopy. Springer Netherlands, 2006. http://dx.doi.org/10.1007/1-4020-3337-0_1.

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Piotrowski, Tomasz, Piotr Prochoń, and Magdalena Wojtkowska. "Neutron Radiation Shielding of C-PC and Geopolymers." In Springer Proceedings in Materials. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-72955-3_63.

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AbstractThe aim of the paper is to evaluate neutron shielding efficiency of ordinary concrete, heavy-weight concrete and geopolymer concrete modified with epoxy additive. Evaluation was based on neutron shielding efficiency calculations. Since the commonly used fast neutron effective removal cross-section calculation does not take into account thermal neutron absorption reactions, a method adopted from the fast neutron effective removal cross-section calculation based on the macroscopic cross-section calculation for compositions is therefore applied. The results confirmed that an efficient neu

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Chun, Wang-Jae, Satoru Takakusagi, Yohei Uemura, Kyoko Bando, and Kiyotaka Asakura. "X-Ray Absorption Fine Structure Analysis of Catalytic Nanomaterials." In X-ray and Neutron Techniques for Nanomaterials Characterization. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-48606-1_11.

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Bovenkamp-Langlois, Lisa, and Martha W. Schaefer. "The Characterization of Atomically Precise Nanoclusters Using X-Ray Absorption Spectroscopy." In X-ray and Neutron Techniques for Nanomaterials Characterization. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-48606-1_5.

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Sasaki, Kotaro, and Nebojsa Marinkovic. "X-Ray Absorption Spectroscopic Characterization of Nanomaterial Catalysts in Electrochemistry and Fuel Cells." In X-ray and Neutron Techniques for Nanomaterials Characterization. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-48606-1_6.

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Nakanishi, Tomoko M. "Water-Specific Imaging." In Novel Plant Imaging and Analysis. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4992-6_1.

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AbstractOur first target was water, namely, how to obtain a water-specific image nondestructively. Using a neutron beam, we could visualize water-specific images of plants, including roots and flowers, which were never shown before. Each image suggested the plant-specific activity related to water.We briefly present how to acquire the image and what kind of water image is taken by neutron beam irradiation. We present a variety of plant samples, such as flowers, seeds, and wood disks. It was noted that neutrons could visualize the roots imbedded in soil without uprooting. When a spatial image o

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Volz, H. M., Sven C. Vogel, J. A. Roberts, A. C. Lawson, D. J. Williams, and L. L. Daemen. "Effect of Strong Neutron Absorption on Texture and Diffraction Data Analysis." In Materials Science Forum. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-975-x.119.

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Тези доповідей конференцій з теми "Neutron absorption"

Mizia, R. E., T. E. Lister, P. J. Pinhero, and T. L. Trowbridge. "Localized Corrosion of a Neutron Absorbing Ni-Cr-Mo-Gd Alloy." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05600.

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Abstract The National Spent Nuclear Fuel Program, located at the Idaho National Laboratory (INL), has developed a new nickel-chromium-molybdenum-gadolinium structural alloy for storage and long-term disposal of spent nuclear fuel (SNF). The new alloy will be used for SNF storage container inserts for nuclear criticality control. Gadolinium has been chosen as the neutron absorption alloying element due to its high thermal neutron absorption cross section. This alloy must be resistant to localized corrosion when exposed to postulated Yucca Mountain in-package chemistries. The corrosion resistanc

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Mizia, R. E., T. E. Lister, P. J. Pinhero, C. V. Robino, and J. N. DuPont. "Microstructure and Corrosion Performance of a Neutron Absorbing Ni-Cr-Mo-Gd Alloy." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03679.

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Abstract The National Spent Nuclear Fuel Program (NSNFP), located at the Idaho National Engineering and Environmental Laboratory (INEEL), coordinates and integrates national efforts in management and disposal of U.S. Department of Energy (DOE)-owned spent nuclear fuel (SNF). These management functions include using the DOE standardized canister for packaging, storage, treatment, transport, and long-term disposal. Nuclear criticality control measures are needed in these canisters because of the enrichment and total quantity of fissile material in some types of the DOE SNF. This paper will descr

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He, Xihua, Tae Ahn, and Timothy Sippel. "Corrosion of Borated Stainless Steel in Water and Humid Air." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01142.

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Abstract Borated stainless steel alloys are candidate neutron absorber materials for criticality control in disposal containers or dry storage canisters. Type 304 borated stainless steels are similar to conventional Type 304 stainless steels except that they contain a boron addition, which imparts a much higher thermal neutron absorption cross section than other austenitic stainless steels. This work investigated the corrosion behavior of borated stainless steel in water and humid air. In this study, Type 304B4 and 304B5 borated stainless steels were exposed to the liquid and vapor phases of s

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Mizia, R. E., T. E. Lister, P. J. Pinhero, J. N. DuPont, and C. V. Robino. "Corrosion Performance of a Gadolinium Containing Stainless Steel." In CORROSION 2001. NACE International, 2001. https://doi.org/10.5006/c2001-01138.

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Abstract The National Spent Nuclear Fuel Program (NSNFP), located at the Idaho National Engineering and Environmental Laboratory (INEEL), coordinates and integrates national efforts in management and disposal of U.S. Department of Energy (DOE)-owned spent nuclear fuel (SNF). These management functions include using the DOE standardized canister for packaging, storage, treatment, transport, and disposal. Nuclear criticality control measures are needed in these canisters because of the enrichment and total quantity of fissile material in some types of the DOE SNF. This paper will describe the NS

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de Oliveira, Diego França, Maria Amparo Ferreira Faustino, and Leonardo De Boni. "Two-Photon Absorption Cross-Section of Neutral and Cationic Tetraphenylporphyrins." In Frontiers in Optics. Optica Publishing Group, 2024. https://doi.org/10.1364/fio.2024.jtu5a.53.

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This study explores new tetraphenylporphyrins with neutral and cationic ligands to determine their two-photon absorption cross-section. Results indicate parity forbidden transitions are still observable, while stronger parity allowed transitions appear inside the first biological window.

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Tremsin, Anton S., Jason B. McPhate, John V. Vallerga, et al. "High resolution neutron resonance absorption imaging at a pulsed neutron beamline." In 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference (2011 NSS/MIC). IEEE, 2011. http://dx.doi.org/10.1109/nssmic.2011.6154356.

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Suleimanov, V., V. Hambaryan, A. Y. Potekhin, et al. "Absorption Features in Spectra of Magnetized Neutron Stars." In ASTROPHYSICS OF NEUTRON STARS 2010: A Conference in Honor of M. Ali Alpar. AIP, 2011. http://dx.doi.org/10.1063/1.3629497.

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Abdullah, Yusof, Anis Syukriah Ibrahim, Abdul Razak Daud, and Mohd Reusmaazran Yusof. "Neutron absorption of Al-Si-Mg-B4C composite." In ADVANCING NUCLEAR SCIENCE AND ENGINEERING FOR SUSTAINABLE NUCLEAR ENERGY INFRASTRUCTURE: Proceeding of the International Nuclear Science, Technology and Engineering Conference 2015 (iNuSTEC2015). AIP Publishing LLC, 2016. http://dx.doi.org/10.1063/1.4940108.

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Sano, Tadafumi, Daisuke Ito, Jun-ichi Hori, et al. "Imaging of Actinide Nuclides using Neutron Resonance Absorption." In 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE, 2018. http://dx.doi.org/10.1109/nssmic.2018.8824607.

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Grimmer, H., P. Böni, O. Elsenhans, et al. "GROWTH AND STRUCTURAL CHARACTERIZATION OF Ni/Ti SUPERMIRRORS FOR NEUTRONS." In Physics of X-Ray Multilayer Structures. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/pxrayms.1994.tuc.8.

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The problems of producing and characterizing x-ray mirrors and supermirrors for neutrons are similar. In both cases an abrupt change of the optical properties at the interfaces, low interface roughness and stability of the structure (low diffusion) are required. Unlike for x-rays there are many elements with low neutron absorption. In order to get a large neutron optical contrast at the interfaces, two materials with large coherent scattering length densities of opposite signs have to be combined.

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Звіти організацій з теми "Neutron absorption"

Holden, N. E. Neutron scattering and absorption properties. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10106551.

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Macklin, R. L., and C. W. Alexander. Neutron absorption cross section of uranium-236. Office of Scientific and Technical Information (OSTI), 1988. http://dx.doi.org/10.2172/6699291.

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Cooke, D. W., E. H. Farnum, and B. L. Bennett. Optical absorption of neutron-irradiated silica fibers. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/414888.

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Smith, A. B. Remark on: the neutron spherical optical-model absorption. Office of Scientific and Technical Information (OSTI), 2007. http://dx.doi.org/10.2172/929246.

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Cooke, D. W., E. H. Farnum, and F. W. Clinard. Optical absorption and luminescence in neutron-irradiated, silica-based fibers. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/114949.

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Mao, S. Photon and neutron responses of optical absorption dosimeters used at SLAC. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/753283.

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Cutler, Theresa, Travis Grove, Kelsey Amundson, Jesson Hutchinson, Noah Kleedtke, and Nicholas Wynne. The CWS Experiments -An Experimental Study of the Effects of Chlorine on Thermal Neutron Absorption. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/1885731.

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Eberle, b. Relic Neutrino Absorption Spectroscopy. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/826638.

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Bourdeau, J. E., and R. D. Dyer. Regional-scale lake-sediment sampling and analytical protocols with examples from the Geological Survey of Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331911.

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Regional-scale lake sediment surveys have been successfully used since the 1970s as a means for reconnaissance geochemical exploration. Lake sediment sampling is typically performed in areas with a lack of streams and an overabundance of small-sized (=5 km across) lakes. Lake sediments are known to have major, minor and trace element concentrations that reflect the local geology. Overall, lake sediment surveys are planned and conducted following four distinct stages: 1) background research, 2) orientation survey, 3) regional survey, and 4) detailed survey. At the Geological Survey of Canada, s

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Huber, John Tal, Joshuah Miron, Brent Theurer, Israel Bruckental, and Spencer Swingle. Influence of Ruminal Starch Degradability on Performance of High Producing Dairy Cows. United States Department of Agriculture, 1994. http://dx.doi.org/10.32747/1994.7568748.bard.

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This research project entitled "Influence of Ruminal Starch Degradability on Performance of High Producing Dairy Cows" had the following objectives: a) Determine effects of feeding varying amounts of ruminally degradable starch (RDS) on efficiency of milk and milk protein production; and 2) Investigate digestive and metabolic mechanisms relating to lactation responses to diets varying in ruminal and total starch degradability. Four lactation studies with high producing cows were conducted in which steam-flaked (~ 75% RDS) was compared with dry-rolled sorghum (~ 50% RDS) grain. All studies demo

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