Results 241 to 250 of about 117,491 (291)

Crosslinking of polysilanes by ion beam irradiation

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1998
Poly(methyl phenyl silane), PMPSi, poly(biphenyl methyl silane), PBMSi, poly(c-hexyl methyl silane), PcHexMSi, and poly(methyl n-hexyl silane), PMnHexSi, were irradiated in the absence of air with 300 MeV 86Kr14+, 200 MeV 129Xe14+ and 120 MeV 20Ne5+ ions. PMPSi was also irradiated with 65 MeV 15N3+ and 95 MeV 40Ar5+ ions.
V Herden, S Klaumünzer, W Schnabel
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Ion-beam and electron-beam irradiation of synthetic britholite

Journal of Nuclear Materials, 2003
Abstract Britholite, ideally Ca4−xREE6+x(SiO4)6O2 (REE=rare earth elements), has the hexagonal structure of apatite, a candidate waste form for actinides. Two synthetic britholites: Ca3.05Ce2.38Fe0.25Gd5.37Si4.88O26 (N56) and Ca3.78La0.95Ce1.45Zr0.78Fe0.14Nd2.15Eu0.50Si6.02O26 (N88) (P63; Z=1) were irradiated with 1.0 MeV Kr2+ and 1.5 MeV Xe+ over ...
S. Utsunomiya, S. Yudintsev, L.M. Wang, R.C. Ewing   +3 more
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Optical applications of ion beam irradiation

Vacuum, 2000
Abstract Layers of various metals (M) buried in Si, SiO 2 or Al 2 O 3 were irradiated with various fluences of heavy MeV ions in order to obtain either silicides or nanometric particles that are expected to exhibit interesting optical properties. The mixing of noble metals, Fe and Er with these matrices proceeds either via isotropic diffusion in ...
J. C. PIVIN, D. DIMOVAMALINOVSKA, M. SENDOVAVASSILEVA, M. NIKOLAEVA, MARTUCCI, ALESSANDRO   +4 more
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Fluctuations in the defect creation by ion beam irradiation

1998
Variance behaviour and correlation structures in ion beam induced cascades have been studied by Monte Carlo method. It was found that the number of defects created in an infinite medium has an over-Poisson variance due to fluctuations in the electronic losses.
R. Chakarova, Imre Pázsit
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Pulsed ion beam irradiation of silicon

Nuclear Instruments and Methods in Physics Research, 1982
Abstract The effects of intense pulsed H + , B + and Ba + beam irradiation of single crystal Si and of ion implantation damaged Si have been studied by spreading resistance measurement, backscattering and channeling, and TEM. This paper reports the measurements and their correlation.
W.K. Chu, S.R. Mader, E.F. Gorey, J.E.E. Baglin, R.T. Hodgson, J.M. Neri, D.A. Hammer   +6 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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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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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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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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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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