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Relevant bibliographies by topics / Hydrogen bombardment

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Academic literature on the topic 'Hydrogen bombardment'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Hydrogen bombardment"

1

Pisarev, A. A., A. V. Varava, V. M. Smirnov, and E. R. Dryanina. "Hydrogen recycling constant during ion bombardment." Journal of Nuclear Materials 176-177 (December 1990): 418–21. http://dx.doi.org/10.1016/0022-3115(90)90082-x.

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Zaluzhnyi, A. G., V. P. Kopytin, and M. V. Tcherednichenko-Alchevskiy. "Hydrogen penetration through structural materials during hydrogen ion bombardment." Fusion Engineering and Design 41, no. 1-4 (September 1998): 129–34. http://dx.doi.org/10.1016/s0920-3796(98)00129-x.

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Strauven, H., A. Stesmans, J. Winters, J. Spinnewijn, and O. B. Verbeke. "Hydrogen incorporation mechanisms in the preparation of a-Si:H by ion bombardment-activated reactive evaporation." Journal of Materials Research 3, no. 2 (April 1988): 335–43. http://dx.doi.org/10.1557/jmr.1988.0335.

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Here a-Si:H is prepared by ion bombardment-activated reactive evaporation of Si in a H2O residual gas pressure ranging from 10−9 to 10−7 Torr. The Si+ ions (2.7keV) are bombarding the substrate and the walls during evaporation. Two hydrogen incorporation mechanisms are revealed by H evolution experiments, depending on the H2O residual gas pressure during evaporation. In the first mechanism H is sputtered from the walls of the system by the ion bombardment; this mechanism contributes 10 at. % to the hydrogen content. In a second mechanism Si+ bombardment on the growing layer injects H from H2O molecules adsorbed on the film surface; at least 5 at. % H is incorporated by this process. The second mechanism has a remarkable influence on the microstructure as revealed from the electrical conductivity, electron spin resonance, and infrared transmission. Indeed, Si+ bombardment-induced injection of H changes the conductivity type from variable range hopping to an activated behavior, while the dangling bond density remains low (< 1018 cm −3). The growth of [SiH2]n bundles, observed by the resonance frequency and absorption strength of the stretch mode of the Si–H dipole, is also a consequence of the H injection mechanism. It is concluded that the properties of the a-Si:H, prepared by ion bombardment-activated reactive evaporation, are explained by a microstructure, dependent on the specific hydrogen incorporation mechanism.

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Larionov, V. V., N. N. Nikitenkov, and Yu I. Tyurin. "Hydrogen diffusion in steels under electron bombardment." Technical Physics 61, no. 5 (May 2016): 793–97. http://dx.doi.org/10.1134/s1063784216050133.

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Seager, C. H., R. A. Anderson, and J. K. G. Panitz. "The diffusion of hydrogen in silicon and mechanisms for “unintentional” hydrogenation during ion beam processing." Journal of Materials Research 2, no. 1 (February 1987): 96–106. http://dx.doi.org/10.1557/jmr.1987.0096.

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Experiments are described in which hydrogen is injected into silicon by various techniques and detected by the neutralization of boron acceptor sites. Wet chemical etching is shown to inject protons several microns in a few seconds; this experiment is used to set a lower limit on the diffusivity of hydrogen of ⋍2⊠10−11 cm2/s at 300 K, a number in reasonable agreement with prior estimates deduced by Van Wieririgen and Warmholtz from high-temperature permeation measurements. A number of experiments are reported to elucidate the mechanism for “unintentional” hydrogenation occurring during argon ion bombardment. The data suggest that this effect is caused by bombardment-induced injection of hydrogen from surface H2O/hydrocarbon contaminants.

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Zaluzhnyi, A. G., V. P. Kopytin, O. M. Storozhuk, and M. V. Tcherednichenko-Alchevskyi. "Hydrogen penetration through structural materials under ion bombardment." Journal of Nuclear Materials 233-237 (October 1996): 1148–53. http://dx.doi.org/10.1016/s0022-3115(96)00081-5.

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Som, Tapobrata, Sankar Dhar, Shiraz N. Minwalla, and Vishwas N. Kulkarni. "Hydrogen depletion from KH2PO4 under He+ ion bombardment." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 122, no. 2 (February 1997): 244–46. http://dx.doi.org/10.1016/s0168-583x(96)00777-x.

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Abdul-Kader, A. M., Andrzej Turos, Jacek Jagielski, Lech Nowicki, Renata Ratajczak, Anna Stonert, and Mariam A. Al-Ma’adeed. "Hydrogen release in UHMWPE upon He-ion bombardment." Vacuum 78, no. 2-4 (May 2005): 281–84. http://dx.doi.org/10.1016/j.vacuum.2005.01.039.

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Belyaeva, A. I., A. F. Bardamid, J. W. Davis, A. A. Haasz, V. G. Konovalov, A. D. Kudlenko, M. Poon, K. A. Slatin, and V. S. Voitsenya. "Hydrogen ion bombardment damage in stainless steel mirrors." Journal of Nuclear Materials 345, no. 2-3 (October 2005): 101–8. http://dx.doi.org/10.1016/j.jnucmat.2005.04.066.

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Lopes, J. L., J. A. Greer, and M. Seidl. "Sputtering of negative hydrogen ions by cesium bombardment." Journal of Applied Physics 60, no. 1 (July 1986): 17–23. http://dx.doi.org/10.1063/1.337800.

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Dissertations / Theses on the topic "Hydrogen bombardment"

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Salonen, Emppu. "Molecular dynamics studies of the chemical sputtering of carbon-based materials by hydrogen bombardment." Helsinki : University of Helsinki, 2002. http://ethesis.helsinki.fi/julkaisut/mat/fysik/vk/salonen/.

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Leu, Lina 1962. "Optical excitation of carbon dioxide by bombardment with ions of tri-atomic hydrogen at an energy of one million electron-volts." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278112.

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Targets of CO₂ in a differentially-pumped chamber at a pressure of 40 mTorr were bombarded by particles of H₃⁺ at energy of 1 MeV. The optical spectrum created in the collisions was analyzed with a 1-meter, air Czerny-Turner spectrometer. The spectrum excited in the collisions is dominated by molecular bands in the wavelength range from 300 nm to 900 nm. However, one also sees weak atomic lines from C I, C II, O I and O II. The excitation process gives rise to relatively weak atomic spectra in the visible region compared to similar studies of O₂. This paper reports on the carbon dioxide spectra and compares the relative intensities and the line widths of various features with similar studies of oxygen.

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Books on the topic "Hydrogen bombardment"

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Davis, James William. Hydrogen erosion of carbon for fusion applications. Downsview, Ontario: UTIAS, 1988.

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Davis, James William. Hydrogen erosion of carbon for fusion applications. [Downsview, Ont.]: [Institute for Aerospace Studies], 1987.

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3

Young, Ken, and Warner R. Chilling. Super Bomb. Cornell University Press, 2020. http://dx.doi.org/10.7591/cornell/9781501745164.001.0001.

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This book unveils the story of the events leading up to President Harry S. Truman's 1950 decision to develop a “super,” or hydrogen, bomb. That fateful decision and its immediate consequences are detailed in a diverse and complete account built on newly released archives and previously hidden contemporaneous interviews with more than sixty political, military, and scientific figures who were involved in the decision. The book presents the expectations, hopes, and fears of the key individuals who lobbied for and against developing the H-bomb. It portrays the conflicts that arose over the H-bomb as rooted in the distinct interests of the Atomic Energy Commission, the Los Alamos laboratory, the Pentagon and State Department, the Congress, and the White House. But as the book clearly shows, once Truman made his decision in 1950, resistance to the H-bomb opportunistically shifted to new debates about the development of tactical nuclear weapons, continental air defense, and other aspects of nuclear weapons policy. What the book reveals is that in many ways the H-bomb struggle was a proxy battle over the morality and effectiveness of strategic bombardment and the role and doctrine of the U.S. Strategic Air Command.

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Book chapters on the topic "Hydrogen bombardment"

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Jacobson, L. A., A. V. Babun, V. N. Bondarenko, G. Konovalov, I. I. Papirov, I. V. Ryzhkov, A. N. Shapoval, et al. "The Effect Of Deuterium Ion Bombardment On The Optical Properties Of Beryllium Mirrors." In Hydrogen and Helium Recycling at Plasma Facing Materials, 27–34. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0444-2_4.

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Garner, F. A., L. Shao, and C. Topbasi. "Predictions and Measurements of Helium and Hydrogen in PWR Structural Components Following Neutron Irradiation and Subsequent Charged Particle Bombardment." In The Minerals, Metals & Materials Series, 651–68. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-030-04639-2_42.

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Garner, F. A., L. Shao, and C. Topbasi. "Predictions and Measurements of Helium and Hydrogen in PWR Structural Components Following Neutron Irradiation and Subsequent Charged Particle Bombardment." In The Minerals, Metals & Materials Series, 651–68. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-67244-1_42.

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SAGARA, A., R. W. CONN, A. MIYAHARA, N. NODA, Y. HIROOKA, G. CHEVALIER, R. DOERNER, and M. KHANDAGLE. "CHEMICAL EROSION OF SELECTED Carbon-Carbon COMPOSITES UNDER HIGH-FLUX HYDROGEN PLASMA BOMBARDMENT IN PISCES-B." In Fusion Technology 1990, 361–65. Elsevier, 1991. http://dx.doi.org/10.1016/b978-0-444-88508-1.50055-4.

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LEE, CHINSHUANG, YULING FONG, MINGTSONG TSAI, SHYONG LEE, C. Y. R. WU, and WING IP. "THE ISOTOPE EFFECTS AND THE LUMINESCENCE SPECTRA OF H2O AND D2O ICES INDUCED BY HYDROGEN IONS BOMBARDMENT." In Advances in Geosciences, 181–96. World Scientific Publishing Company, 2009. http://dx.doi.org/10.1142/9789812836229_0012.

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Scerri, Eric. "From Missing Elements to Synthetic Elements." In A Tale of Seven Elements. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780195391312.003.0015.

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The periodic table consists of about ninety elements that occur naturally, ending with element 92, uranium. One or two of the first ninety-two elements are variously reported either as not occurring on Earth or as occurring in miniscule amounts. To add to the complications in drawing a sharp line between natural and synthetic elements, the element technetium was first created artificially and only later found to occur naturally on Earth in minute amounts. As we have seen in previous chapters, chemists and physicists have succeeded in synthesizing some of the elements that were missing between hydrogen (1) and uranium (92), such as promethium and astatine. But in addition, a further twenty-five or so new elements beyond uranium have been synthesized, although again one or two of these, such as neptunium and plutonium, were later found to exist naturally in exceedingly small amounts. At the time of writing, the heaviest element for which there is good experimental evidence is element-118. All other elements between 92 and 118 have also been successfully synthesized including element-117, which was announced in April of 2010. The synthesis of this element means that for the first time, and probably the last, every single space in a contemporary periodic table has been filled, although some of these elements are still awaiting official ratification. The synthesis of any element involves starting with a particular nucleus and subjecting it to bombardment with small particles with the aim of increasing the atomic number and hence changing the identity of the nucleus in question. More recently, the method of synthesis has changed so that two nuclei of considerable weights are made to collide with the aim of forming a larger and heavier nucleus. In a sense in which all these syntheses are descended from a key experiment, conducted by Rutherford and Soddy in 1919 at the University of Manchester, Rutherford and Soddy bombarded nuclei of nitrogen with α particles (helium ions) with the result that the nitrogen nucleus was transformed into that of another element.

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Keats, Jonathon. "Copernicium." In Virtual Words. Oxford University Press, 2010. http://dx.doi.org/10.1093/oso/9780195398540.003.0005.

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The only accolade that American chemist Glen T. Seaborg cared for more than winning the Nobel Prize was having an element named in his honor. In 1994 his colleagues gave him that distinction, elevating the Nobel laureate to the status of helium and hydrogen. Over the next fifteen years, six more elements followed seaborgium onto the periodic table, bringing the total to 112. The last, enshrined in 2009, pays homage to Nicolas Copernicus. Unlike Seaborg, Copernicus never sought such a tribute. Having already scored ample name recognition with the Copernican Revolution, he didn’t really need it. If anything, by the time copernicium was recognized as an element, the periodic table needed him. Copernicium is one of twenty elements containing more protons than the ninety-two naturally found in uranium. All twenty are made artificially in laboratories by colliding preexisting elements such as zinc and lead in a particle accelerator or cyclotron. In some ten billion billion bombardments, two protons will fuse to make one atom of a new super-heavy element. Typically the atom is unstable, lasting perhaps a millisecond before decaying into lighter elements again. All of which makes element fabrication a tricky enterprise, nearly as miraculous as alchemy and considerably more contentious. Who synthesized the first atom of an element, and therefore gets to name it? Seaborg’s UC Berkeley laboratory was the only one in the business through the 1940s and 1950s, netting him ten elements, including plutonium, for which he won the 1951 Nobel Prize in Chemistry. By the 1960s, however, there was competition from the Soviets, resulting in the so-called Transfermium Wars. For several decades the periodic table became a political battlefield rather than an intellectual commons. Nothing could have been further from the table’s Enlightenment origins. The product of empirical research and intended to disseminate universal knowledge, a table of presumed elements was first published by the French chemist Antoine Lavoisier in 1789, arranging thirty-three substances, including silver and sulfur and phosphorus, based on observed attributes (such as “Oxydable and Acidifiable simple Metallic Bodies”) rather than according to philosophical precepts.

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Conference papers on the topic "Hydrogen bombardment"

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Seidl, M., W. E. Carr, J. L. Lopes, S. T. Melnychuk, and G. S. Tompa. "Surface production of negative hydrogen ions by hydrogen and cesium ion bombardment." In AIP Conference Proceedings Volume 158. AIP, 1987. http://dx.doi.org/10.1063/1.36565.

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Allinger, Thomas, V. Persch, Juergen A. Schaefer, Y. Meng, H. De, J. Anderson, and G. J. Lapeyre. "Interaction of hydrogen at InP(100) surfaces before and after ion bombardment." In Physical Concepts of Materials for Novel Optoelectronic Device Applications, edited by Manijeh Razeghi. SPIE, 1991. http://dx.doi.org/10.1117/12.24319.

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Xia, Yiben, Takashi Sekiguchi, Weimin Shi, Linjun Wang, Jianhua Ju, and Takafumi Yao. "Defects eliminated by hydrogen and boron ion bombardment in polycrystalline diamond films." In 4th International Conference on Thin Film Physics and Applications, edited by Junhao Chu, Pulin Liu, and Yong Chang. SPIE, 2000. http://dx.doi.org/10.1117/12.408322.

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Zhao, Qiang, Yang Li, Zheng Zhang, and Xiaoping Ouyang. "Molecular Dynamics Simulation of the Sputtering of Graphite due to Bombardment With Deuterium and Tritium in Fusion Environment." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-67781.

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The sputtering of graphite due to the bombardment of hydrogen isotopes is one of the critical issues in successfully using graphite in the fusion environment. In this work, we use molecular dynamics method to simulate the sputtering by using the LAMMPS. Calculation results show that the peak values of the sputtering yield are located between 25 eV to 50 eV. After the energy of 25 eV, the higher incident energy cause the lower carbon sputtering yield. The temperature which is most likely to sputter is about 800 K for hydrogen, deuterium and tritium. Before the 800 K, the sputtering rates increase when the temperature increase. After the 800 K, they decrease with the temperature increase. Under the same temperature and energy, the sputtering rate of tritium is bigger than that of deuterium, the sputtering rate of deuterium is bigger than that of hydrogen.

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Reports on the topic "Hydrogen bombardment"

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Hirooka, Y., W. K. Leung, R. W. Conn, D. M. Goebel, B. LaBombard, R. Nygren, and K. L. Wilson. Hydrogen pumping and release by graphite under high flux plasma bombardment. Office of Scientific and Technical Information (OSTI), January 1988. http://dx.doi.org/10.2172/5497289.

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