Results 211 to 220 of about 25,612 (260)

Localized Ion-Beam Irradiation-Induced Wrinkle Patterns

ACS Applied Materials & Interfaces, 2015
We observe a localized irradiation-induced wrinkle pattern on poly(dimethylsiloxane) (PDMS) via a long pattern mask. Localized ion-beam irradiation induces an inhomogeneous wrinkle pattern on the treated region. To confirm the inhomogeneity of the entire wrinkle pattern, its morphology was investigated using optical microscopy, which revealed separated
Hae-Chang, Jeong, Hong-Gyu, Park, Ju Hwan, Lee, Dae-Shik, Seo   +3 more
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Formation of Nanoparticles by Ion Beam Irradiation of Thin Films

Journal of Nanoscience and Nanotechnology, 2012
The possibility of fabricating nanoparticles by ion bombardment was investigated by the ion bombardment of indium films on oxide covered Si and Cr surfaces. The different masses of implanting specimen ensured the different energy transfer while the same Si substrate ensured the same thermal conductivity for the In and Cr layers.
Z, Baji, A, Szanyo, G, Molnár, A L, Tóth, G, Peto, K, Frey, E, Kotai, G, Kaptay   +7 more
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Ion beam irradiation of relaxed amorphous silicon carbide

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1999
Abstract In-situ transmittance measurements at λ =633 nm are used during ion irradiation to probe the defect generation in relaxed amorphous silicon carbide (SiC). The optical constants of amorphous SiC are strongly correlated to the thermal history of the material and the transmittance of ion implanted amorphous SiC (unrelaxed amorphous) increases ...
CALCAGNO, Lucia, MUSUMECI, Paolo, GRIMALDI, Maria Grazia   +2 more
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Cell Survival in Spheroids Irradiated with Heavy-Ion Beams

Radiation Research, 1981
Studies have been carried out with x rays and high-energy carbon and neon ion beams to evaluate high-LET cell survival in terms of RBE and possible contributions of intercellular communication. Comparisons were made of the postirradiation survival characteristics for cells irradiated as multicellular spheroids and for cells irradiated in suspension ...
A, Rodriguez, E L, Alpen
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Characterisation of Ion Beam Irradiated Zirconolite for Pu Disposition

Materials Research Society Symposium Proceedings, 2008
A number of mineral systems retain significant actinide fractions over geological timescales, rendering them metamict as a result of ot-decay events. These systems can be viewed as natural actinide wasteforms and are a useful guide when designing synthetic materials for the disposition of actinide species arising from civilian and military nuclear ...
Stennett, Martin C., Hyatt, Neil C., Reid, Daniel P., Maddrel, Ewan R., Peng, Nianhua, Jeynes, Chris, Kirkby, Karen J.; id_orcid 0000-0002-0901-210X, Woicik, Joseph C.   +7 more
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Electron-irradiation- and ion-beam-induced amorphization of coesite

Physical Review B, 1996
Electron-irradiation-induced amorphization in coesite was observed {ital in} {ital situ} as a function of temperature (15-750 K) at incident electron energy of 1.0 MeV by TEM. Amorphization induced by ion-beam irradiation (1.5 MeV Kr{sup +}) in coesite was studied {ital in} {ital situ} as a function of temperature (15-875 K) using the high-voltage ...
, Gong, , Wang, , Ewing, , Zhang
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Ion Beam Irradiation Effects on Polymers

MRS Proceedings, 2003
ABSTRACTThe main effects of the interaction of accelerated ions with polymeric targets are critically reviewed. The possibility of a relatively reduced heating of polymer during ion beam bombardment is analyzed. Experimental data pointing towards various radiation-induced modifications in polycarbonate (free radicals production, modifications of the ...
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Ion-Beam Irradiated Metallic Systems

1999
The interaction of energetic ion bems with solid targets has been studied for some decades. It is now well established that two independent processes contribute to the stopping power, S =·dE/N∙dx, the energy loss dE of an ion crossing a layer dx thick of a solid having N atoms per volume unit: (i) S e , the electronic stopping, due to electronic ...
G. Principi, A. Gupta
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Residual gas and ion-beam analysis of ion-irradiated polymers

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1991
Abstract In order to understand the ion-polymer interactions which lead to improved polymer-surface properties of ion-irradiated polymers, we have measured both the gases evolved from the polymers Teflon and Kapton during irradiation and the change in the composition of Kapton after irradiation. Ion beams of helium, nitrogen and silicon in the energy
M.B. Lewis, E.H. Lee
openaire   +1 more source

Dose response of alanine detectors irradiated with carbon ion beams

Medical Physics, 2011
Purpose:The dose response of the alanine detector shows a dependence on particle energy and type when irradiated with ion beams. The purpose of this study is to investigate the response behavior of the alanine detector in clinical carbon ion beams and compare the results to model predictions.Methods:Alanine detectors have been irradiated with carbon ...
Herrmann, Rochus, Jäkel, Oliver, Palmans, Hugo, Sharpe, Peter, Bassler, Niels; id_orcid 0000-0002-4160-1078   +4 more
openaire   +3 more sources