Results 271 to 280 of about 420,898 (315)
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Microdosimetry of proton and carbon ions
Medical Physics, 2014Purpose:To investigate microdosimetry properties of 160 MeV/u protons and 290 MeV/u12C ion beams in small volumes of diameters 10–100 nm.Methods:Energy distributions of primary particles and nuclear fragments in the beams were calculated from simulations with the general purpose code SHIELD‐HIT, while energy depositions by monoenergetic ions in ...
Thiansin, Liamsuwan +4 more
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Neoplastic Transformation Induced by Carbon Ions
International Journal of Radiation Oncology*Biology*Physics, 2009The objective of this experiment was to compare the oncogenic potential of carbon ion beams and conventional photon beams for use in radiotherapy.The HeLa X human skin fibroblast cell line CGL1 was irradiated with carbon ions of three different energies (270, 100, and 11.4 MeV/u). Inactivation and transformation data were compared with those for 15 MeV
D. Bettega +4 more
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ACS Applied Materials & Interfaces, 2018
Dual ion batteries based on Na+ and PF6- received considerable attention due to their high operating voltage and the abundant Na resources. Here, cheap and easily obtained graphite that served as a cathode material for dual ion battery delivered a very high average discharge platform (4.52 V vs Na+/Na) by using sodium hexafluorophosphate in propylene ...
Zhe Hu +11 more
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Dual ion batteries based on Na+ and PF6- received considerable attention due to their high operating voltage and the abundant Na resources. Here, cheap and easily obtained graphite that served as a cathode material for dual ion battery delivered a very high average discharge platform (4.52 V vs Na+/Na) by using sodium hexafluorophosphate in propylene ...
Zhe Hu +11 more
openaire +5 more sources
Thin Solid Films, 1977
Abstract Ion-plated coatings of carbon have been deposited on several metal substrates The coatings are very adherent and in contrast with vacuum-evaporated films have a highly graphitic crystal structure. They are wear resistant and have a low friction coefficient.
D.G. Teer, M. Salama
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Abstract Ion-plated coatings of carbon have been deposited on several metal substrates The coatings are very adherent and in contrast with vacuum-evaporated films have a highly graphitic crystal structure. They are wear resistant and have a low friction coefficient.
D.G. Teer, M. Salama
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Ions and carbon nanostructures
Radiation Effects and Defects in Solids, 2013First experiments on swift ion irradiation of highly oriented pyrolythic graphite led to formation of carbon nanotubes (CNT) at the cascade eruption points. CNT length was in the micron range, which corresponded to an explosive crystallization of the carbon plume with about sound velocity.
Gyulai, József +5 more
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Carbon Electrodes for K-Ion Batteries
Journal of the American Chemical Society, 2015We for the first time report electrochemical potassium insertion in graphite in a nonaqueous electrolyte, which can exhibit a high reversible capacity of 273 mAh/g. Ex situ XRD studies confirm that KC36, KC24, and KC8 sequentially form upon potassiation, whereas depotassiation recovers graphite through phase transformations in an opposite sequence ...
Zelang, Jian, Wei, Luo, Xiulei, Ji
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Metal Ion Function in Carbonic Anhydrase
Angewandte Chemie International Edition in English, 1972AbstractThe purpose of this review is to present an up‐to‐date account of the chemistry of the metal ion in the enzyme carbonic anhydrase. The interest lies in how the study of the metal may lead to deductions concerning the chemistry of the enzyme's action and in the way that metalloenzyme chemistry seems to demand a new appraisal of some aspects of ...
R H, Prince, P R, Woolley
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Clinical Indications for Carbon Ion Radiotherapy
Clinical Oncology, 2018Compared with photon and proton therapy, carbon ion radiotherapy (CIRT) offers potentially superior dose distributions, which may permit dose escalation with the potential for improved sparing of adjacent normal tissues. CIRT has increased biological effectiveness leading to increased tumour killing compared with other radiation modalities.
Mohamad, O., Yamada, S., Durante, M.
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Electromigration Forces on Ions in Carbon Nanotubes
Physical Review Letters, 2005We calculate the electromigration forces on ions such as adsorbed alkali metal atoms in a carbon nanotube transistor. The forces are especially large in the turn-on regime of the transistor and much smaller in the off and on states. Electromigration in the channel is driven almost exclusively by the wind force. The sign of the "effective valence" Z* is
S, Heinze, Neng-Ping, Wang, J, Tersoff
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High-intensity carbon ion injector
Review of Scientific Instruments, 1979An injector of intense beams of carbon ions is described. The device uses an array of carbon plasma guns to inject ions directly into a magnetically insulated acceleration gap. Ion currents exceed 3 kA with beam energies between 100 and 300 keV (for C+) and 200 and 600 keV (for C++) over a 700-ns pulselength.
S, Humphries +3 more
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