First measurements with the Madrid 5 MV tandem accelerator

Climent‐Font, A.; Pászti, F.; Garcia, G. Sanchez; Fernández-Jiménez, M.T.; Agulló, F.

doi:10.1016/j.nimb.2004.01.090

Cited by 94 publications

(41 citation statements)

References 4 publications

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“…A complete description of the experimental setup is described in Ref. [12]. We have used resonant RBS [7,10] to determine the average composition of the films, with an accuracy better than 5%, by using an incident beam of 3.7 MeV 4 He + ions and detecting the backscattered ions at scattering angles of 165…”

Section: Methodsmentioning

confidence: 99%

Synthesis and characterization of iron nitrides. An XRD, Mössbauer, RBS and XPS characterization

Prieto

Marco

Sanz

2008

Surface & Interface Analysis

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In this work, we demonstrate the capability of a dual ion beam sputtering method to obtain iron nitride thin films, FeN x , in a wide composition range (0.1 < x < 0.5) and structures (α , γ , ε, ζ , γ and γ ) by controlling the deposition conditions (i.e. deposition rate, flux and energy of the assisting nitrogen ions and substrate temperature). The average composition of the films has been determined by resonant RBS to enhance the nitrogen signal, whereas the structural characterization and the phase identification have been carried out by X-ray diffraction (XRD) and Mössbauer spectroscopy. We present a thorough and complementary analysis of the XRD and Mössbauer data as a function of the composition of the film for all the iron nitride phases. Furthermore, it is shown that the iron Auger parameter (AP) increases up to 0.8 eV with respect to that for pure α-Fe when the nitrogen concentration increases up to 46 at.% (i.e. γ and γ phases) so that it might serve to analyze samples of unknown composition.

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Section: Methodsmentioning

confidence: 99%

Synthesis and characterization of iron nitrides. An XRD, Mössbauer, RBS and XPS characterization

Prieto

Marco

Sanz

2008

Surface & Interface Analysis

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“…29 A 3035 keV energy He-beam with square-section (1 mm in diagonal) was used thus taking advantage of the elastic resonance 16 O(a,a) 16 O occurring at this energy 30 and increasing the sensitivity to oxygen concentration by a factor of 23. The samples were kept in vacuum.…”

Section: Materials and Techniquesmentioning

confidence: 99%

Composition, nanostructure, and optical properties of silver and silver-copper lusters

Pradell

Pavlov

Gutiérrez

et al. 2012

Journal of Applied Physics

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Influence of alloy inhomogeneities on the determination by Raman scattering of composition and strain in Si1-xGex/Si(001) layers J. Appl. Phys. 112, 023512 (2012) Plasmon coupling in circular-hole dimers: From separation-to touching-coupling regimes J. Appl. Phys. 112, 013113 (2012) Correlation between reflectivity and resistivity in multi-component metallic systems Appl. Phys. Lett. 101, 011902 (2012) Ultrathin metallic coatings can induce quantum levitation between nanosurfaces Appl. Phys. Lett. 100, 253104 (2012) Transmittance and optical constants of Sr films in the 6-1220eV spectral range J. Appl. Phys. 111, 113533 (2012) Additional information on J. Appl. Phys. Lusters are composite thin layers of coinage metal nanoparticles in glass displaying peculiar optical properties and obtained by a process involving ionic exchange, diffusion, and crystallization. In particular, the origin of the high reflectance (golden-shine) shown by those layers has been subject of some discussion. It has been attributed to either the presence of larger particles, thinner multiple layers or higher volume fraction of nanoparticles. The object of this paper is to clarify this for which a set of laboratory designed lusters are analysed by Rutherford backscattering spectroscopy, transmission electron microscopy, x-ray diffraction, and ultraviolet-visible spectroscopy. Model calculations and numerical simulations using the finite difference time domain method were also performed to evaluate the optical properties. Finally, the correlation between synthesis conditions, nanostructure, and optical properties is obtained for these materials. V C 2012 American Institute of Physics. [http://dx

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“…The pieces were analysed at the CMAM Accelerator Laboratory of the Universidad Autónoma de Madrid, furnished with a 5 MV Cockcroft-Walton electrostatic accelerator [4,5]. attenuate the copper contribution to the detector energy spectrum, detected medium and high Z elements.…”

Section: -Pixe Analyses Of the Bronzesmentioning

confidence: 99%

Late Bronze Age hoard studied by PIXE

Neira

Zucchiatti

Montero‐Ruiz

et al. 2011

Nuclear Instruments and Methods in Physics Research Section B:

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The hoards of metallic objects belonging to the Late European Bronze Age can be interpreted differently depending on the type, number and composition of the artefacts. PIXE analysis has been performed in nine items from the Hoard of Freixanda in Portugal comprising 4 socket axes, a palstave axe, a ring, a chisel, a dagger, and a casting debris. Besides the composition of the main matrix elements, that is Cu and Sn, the amount of trace elements of interest like, As, Pb, Ni and Ag has been determined using this ion beam technique. The high tin content alloy and the high purity of the metals from the Freixanda hoard are characteristic of the Portuguese and Spanish Late Bronze Age metallurgy, supporting the idea of a regional production.

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First measurements with the Madrid 5 MV tandem accelerator

Cited by 94 publications

References 4 publications

Synthesis and characterization of iron nitrides. An XRD, Mössbauer, RBS and XPS characterization

Synthesis and characterization of iron nitrides. An XRD, Mössbauer, RBS and XPS characterization

Composition, nanostructure, and optical properties of silver and silver-copper lusters

Late Bronze Age hoard studied by PIXE

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