Results 271 to 280 of about 7,700,334 (333)

Optimization of Laser‐Generated Ion Beams

Contributions to Plasma Physics, 2011
AbstractIn this paper the route towards the current optimum of laser generated ion beams by subsequently changing the important parameters such as target thickness, laser pulse contrast, angle of incidence and laser pulse polarization is sketched. Beginning with parameters of isothermal target normal sheath acceleration (TNSA), we reached the regime ...
Steinke, S., Schnuerer, M., Sokollik, T., Andreev, A. A., Nickles, P. V., Henig, A., Hoerlein, R., Kiefer, D., Jung, D., Schreiber, J., Tajima, T., Hegelich, M., Habs, D., Sandner, W.   +13 more
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Ion trap mass spectrometry of externally generated ions

Analytical Chemistry, 1994
This discussion provides background for consideration of the merits of ion trap MS in conjunction with an external ion source relative to a scanning beam-type form of mass analysis. Emphasis has been placed primarily on efficiency. However, a variety of other factors can be major considerations, depending upon the application. For example, the ion trap
Scott A. McLuckey, Gary J. Van Berkel, Douglas E. Goeringer, Gary L. Glish   +3 more
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High energy ion generation

SPIE Proceedings, 2003
We report on multi-MeV ion beam generation from the interaction of a 10 TW, 400 fs, 1.053 μm laser focused onto thin foil targets at intensities ranging from 1017 to 1019 W/cm2. Ion beam characteristics were studied by changing laser intensity, the preformed plasma scale-length and target material initial conductivity.
Anatoly M. Maksimchuk, V. Y. Bychenkov, K. Flippo, H. Krause, Kunioki Mima, Gerard A. Mourou, Koshichi Nemoto, Yasuhiko Sentoku, Donald P. Umstadter, R. Vane   +9 more
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Pair-Ion Plasma Generation using Fullerenes

Physical Review Letters, 2003
We have developed a novel method for generating pure pair plasma which consists of positive- and negative-charged particles with an equal mass. The pair-ion plasma without electrons is generated using fullerene as an ion source through the processes of hollow-electron-beam impact ionization, electron attachment, preferential radial diffusion of ions ...
Wataru, Oohara, Rikizo, Hatakeyama
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Oxidative Generation of Diarylcarbenium Ion Pools

Organic Letters, 2006
"Cation pools" of diarylcarbenium ions have been generated by the oxidative C-H bond dissociation of diarylmethanes using anodic oxidation. "Diarylcarbenium ion pools" thus generated react with various nucleophiles, such as allylsilanes, ketene silyl acetals, and aromatic compounds.
Okajima, M, Soga, K, Nokami, T, Suga, S, Yoshida, J   +4 more
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Phospholamban generates cation selective ion channels

Physical Chemistry Chemical Physics, 2011
Phosholamban (PLN) is involved in the contractility of cardiac muscles by regulating the intracellular calcium concentration (Ca(2+)(cyt)) of cardiac myocytes. This occurs via a modulation of the sarco-/endoplasmic CaATPase (SERCA). In spite of high-resolution structures the molecular mode of PLN action is yet not known.
SMEAZZETTO, SERENA, I. Schröder, G. Thiel, MONCELLI, MARIA ROSA   +3 more
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Hard Carbon Anodes for Next‐Generation Li‐Ion Batteries: Review and Perspective

Advanced Energy Materials, 2021
Carbonaceous materials have been accepted as a promising family of anode materials for lithium‐ion batteries (LIBs) owing to optimal overall performance.
Li-jing Xie, Cheng Tang, Zhihong Bi, Min-Sang Song, Yafeng Fan, Chong Yan, Xiaoming Li, F. Su, Qiang Zhang, Chengmeng Chen   +9 more
semanticscholar   +1 more source

Investigating the relationship between internal short circuit and thermal runaway of lithium-ion batteries under thermal abuse condition

, 2021
Thermal runaway, a critical problem that hinders the application of lithium-ion battery, is always a thermal-electrical coupled process where exothermic chemical reactions and internal short circuit coincide and interact with each other.
Dongsheng Ren, Xuning Feng, Lishuo Liu, Hungjen Hsu, Languang Lu, Li Wang, Xiangming He, M. Ouyang   +7 more
semanticscholar   +1 more source

Ion-cyclotron wave generation by planetary ion pickup

Journal of Atmospheric and Solar-Terrestrial Physics, 2007
Ion-cyclotron waves play important roles in planetary magnetospheres and are diagnostic of the processes operating in the magnetosphere and of the composition of the plasma producing the waves. At Jupiter, Io's exosphere interacts with the corotating magnetospheric plasma.
C.T. Russell, X. Blanco-Cano
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Sequeince‐ion studies in peptides: The generation of C″ ions

Rapid Communications in Mass Spectrometry, 1993
Abstract The mechanism for the formation of C″‐type ions from protonated peptides, produced under conditions of fast‐atom bombardment and rollisional activation was investigated. Comparison of the tandem mass spectra of the [M + H] + ions of a model peptide and the ...
W D, van Dongen, C G, de Koster, W, Heerma, J, Haverkamp   +3 more
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