Results 251 to 260 of about 117,491 (291)

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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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
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Mutation induced with ion beam irradiation in rose

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2003
Abstract The effects of mutation induction by ion beam irradiation on axillary buds in rose were investigated. Axillary buds were irradiated with carbon and helium ion beams, and the solid mutants emerged after irradiation by repeated cutting back. In helium ion irradiation, mutations were observed in plants derived from 9 buds among 56 irradiated ...
H. Yamaguchi, S. Nagatomi, T. Morishita, K. Degi, A. Tanaka, N. Shikazono, Y. Hase   +6 more
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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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Patterning magnetic films by ion beam irradiation

Journal of Applied Physics, 2000
We have used ion beam irradiation through a silicon stencil mask to alter the magnetic properties of Co/Pt multilayer and FePt chemically-ordered superlattice films. In both systems, ion irradiation disorders the as-grown films which results in a reduction of the magnetic anisotropy.
Terris, B. D., Weller, D., Folks, L., Baglin, J. E.E., Kellock, A. J., Rothuizen, H., Vettiger, P.   +6 more
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Nano-fabricated cdw by ion-beam irradiation

Synthetic Metals, 1999
We propose a new technique of nano size CDW formation by applying two types of accurately controlled ion-beams to one dimensional bulk conductor. The CDW sample has 400 A thickness and 1000 A width. As a result of our investigation, we have found that the nano-fabricated CDW shows collective sliding and negative resistance above some threshold electric
T. Sumita, T. Nagai, H. Kubota, T. Matsukawa, I. Ohdomari   +4 more
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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
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University of Wisconsin Ion Beam Laboratory: A facility for irradiated materials and ion beam analysis

AIP Conference Proceedings, 2013
The University of Wisconsin Ion Beam Laboratory (UW-IBL) has recently undergone significant infrastructure upgrades to facilitate graduate level research in irradiated materials phenomena and ion beam analysis. A National Electrostatics Corp. (NEC) Torodial Volume Ion Source (TORVIS), the keystone upgrade for the facility, can produce currents of ...
K. G. Field, C. J. Wetteland, G. Cao, B. R. Maier, C. Dickerson, T. J. Gerczak, C. R. Field, K. Kriewaldt, K. Sridharan, T. R. Allen   +9 more
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Infrared analysis of ion beam irradiated polymers

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2009
Abstract Irradiation with heavy ions can produce several modifications in the chain structure of polymers. These modifications can be related to scissioning and cross-linking of chemical bonds, which depend on the ion fluence and the density of energy deposited in the material. Stacked thin film Makrofol-KG® samples were irradiated with 350 MeV Au26+
A.O. Delgado, M.A. Rizzutto, M.H. Tabacniks, N. Added, D. Fink   +4 more
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