Results 261 to 270 of about 117,491 (291)

Ion beam irradiated optical channel waveguides

SPIE Proceedings, 2014
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Bányász I, Rajta István, Nagy G U L, Zolnai Zsolt, Havránek Vladimir, Pelli Stefano, Veres Miklós, Himics Laszlo, Berneschi Simone, Nunzi Conti Gualtiero, Righini Giancarlo Cesare   +10 more
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ESR investigations on ion beam irradiated polycarbonate

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1994
Abstract Electron spin resonance (ESR) investigations with a polycarbonate solid state nuclear detector, irradiated with oxygen ions, are reported. The nature of the paramagnetic defects induced by irradiation is discussed. The temperature dependence of resonance line parameters is studied.
M.I. Chiparǎ, V.V. Grecu, P.V. Notingher, J. Reyes Romero, M.D. Chipară   +4 more
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Optical absorptivity of ion-beam irradiated silicon

Applied Physics A Solids and Surfaces, 1988
Single-crystal layers of silicon on sapphire have been irradiated with Ne and Kr ions at room temperature. The concomitant changes in optical absorption have been measured as a function of photon energy. The absorptivity of the amorphized silicon is about one order of magnitude higher as compared to the crystalline state in the photon energy interval ...
K. L. Bhatia, W. Kr�tschmer, S. Kalbitzer   +2 more
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Modification of bamboo surface by irradiation of ion beams

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2003
Abstract When beams of hydrogen ions, He+ and Ar+ were irradiated onto bamboo surface, gas release of hydrogen, water, carbon monoxide and carbon dioxide were enhanced. Time evolution of the gas emission showed two peaks corresponding to release of adsorbed gas from the surface by sputtering, and thermal desorption caused by the beam heating.
M. Wada, S. Nishigaito, R. Flauta, T. Kasuya   +3 more
openaire   +1 more source

Low energy ion beam irradiation of silicon

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1996
Abstract A focused ion beam system with a liquid metal ion source has been used to irradiate monocrystalline silicon with various ions (Ga, Si, Au, Au clusters) at energies from 60 keV down to 40 eV. The fluence was between 10 12 and 10 16 atoms/cm 2 .
P.W. Nebiker, M. Döbeli, R. Mühle, M. Suter, D. Vetterli   +4 more
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The characteristics of ion beam assisted etching of GaAs by pulsed focused ion beam irradiation

Microelectronic Engineering, 1993
Abstract We investigated the characteristics of ion beam assisted etching of GaAs by continuous and pulsed Ga + beam irradiation in a Cl 2 ambient. A rate equation model was proposed to explain the measured etch yield. By pulsed beam irradiation, the etch yield increased up to 500 atoms/ion and this increase was explained by the accumulation of ...
T. Kosugi, H. Iwase, K. Gamo
openaire   +1 more source

Ion beam irradiation in La2Zr2O7–Ce2Zr2O7 pyrochlore

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2004
Abstract Generally, zirconate pyrochlores do not experience a radiation-induced transformation from the crystalline-to-amorphous state, but rather disorder to a defect fluorite structure-type. Thus Gd2Zr2O7 has been proposed as a nuclear waste form for the immobilization of plutonium because of its radiation “stability”.
J. Lian, L.M. Wang, R.G. Haire, K.B. Helean, R.C. Ewing   +4 more
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Heat diffusion in heavy ion beam irradiation

X-Ray Spectrometry, 2019
For heavy ion beam irradiation in water, a model that simulates heat diffusion following measurement indicating heat diffusion is proposed as a first step. This heat is generated near the incident ion path. The model proposed here should be useful for ion‐beam cancer therapy as well as the analysis of this measurement.
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[Biocompatibility of ePTFE modified by ion beam irradiation].

No shinkei geka. Neurological surgery, 2004
Expanded polytetrafluoroethylene (ePTFE) is a stable polymer and widely used as a prosthesis because of its chemical inertness. However, ePTFE as an artificial dura mater is often associated with postoperative leakage of the cerebrospinal fluid (CSF) due to its very low adhesiveness to fibrin glue and surrounding tissue.
Noriyoshi, Takahashi, Hiroshi, Ujiie, Yoshiaki, Suzuki, Masaya, Iwaki, Tomokatsu, Hori   +4 more
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Smoothing of Diamond Films by Ion Beam Irradiation

1991
Abstract In this paper, smoothing of CVD diamond films by ion beam irradiation has been described. Diamond films are synthesized by arc discharge plasma jet CVD and microwave plasma CVD. As a result, by setting up an incident angle at 0°, 80°, smooth surfaces of microwave plasma CVD diamond films have been obtained.
openaire   +1 more source