Differential cross-section measurements for the 12C(d,p0)13C reaction and applications to surface analysis of materials

Carvalho, José Pacheco de; Reis, Alberto

doi:10.1016/j.nimb.2008.03.045

Cited by 13 publications

(18 citation statements)

References 11 publications

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“…The energy of the beam, as well as its energy stability was regularly assessed measuring the 991.81±0.04 keV resonances in the 27 Al(p,γ) 28 Si reaction.…”

Section: Methodsmentioning

confidence: 99%

Resonance parameters of the reaction 12C(d,pγ)13C in the vicinity of 1450keV for accelerator energy calibration

Csedreki

Szíki

Szikszai

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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“…The energy of the beam, as well as its energy stability was regularly assessed measuring the 991.81±0.04 keV resonances in the 27 Al(p,γ) 28 Si reaction.…”

Section: Methodsmentioning

confidence: 99%

Resonance parameters of the reaction 12C(d,pγ)13C in the vicinity of 1450keV for accelerator energy calibration

Csedreki

Szíki

Szikszai

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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“…Figure 6. shows the particle production cross section data measured at the angle of 135 o by [18][19][20][21] together with the data measured in the present work. We obtained the best similarity with the data obtained by Carvalho et al and Kokkoris et al The deviation from these data is within the data uncertainties at low energy.…”

Section: Particle Cross Sectionsmentioning

confidence: 99%

Measurements and assessment of 12C(d,pγ)13C reaction cross sections in the deuteron energy range 740–2000keV for analytical applications

Csedreki

Uzonyi

Szíki

et al. 2014

Nuclear Instruments and Methods in Physics Research Section B:

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The total cross sections of the 12 C(d, energy range using a self-supporting natural carbon foil and detecting the gamma-rays and particles simultaneously. In order to test the validity of the measured gamma-ray producing cross sections, benchmark experiments were performed using kapton foils with two different thicknesses. Both the obtained gamma-and particle production cross section results were compared with data existing in literature, and in the case of (d,p o ) the experimental differential cross-section data were compared also with the theoretical evaluated values.pγ

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“…Such spectra are computationally predicted, giving target composition and concentration profile information [4][5][6][7][8]. A computer program has been developed in this context, mainly for flat targets [4][5][6][7]. The non-flat target situation arises as an extension.…”

mentioning

confidence: 99%

“…Nuclear techniques, which are non-destructive, provide for analysis over a few microns close to the surface of the sample, giving absolute values of concentrations of isotopes and elements. They have been applied in areas such as scientific, technologic, industry, arts and medicine, using MeV ion beams [1][2][3][4][5][6][7]. Nuclear reactions permit tracing of isotopes with high sensitivities.…”

mentioning

confidence: 99%

Applications of Nuclear Techniques, Computer Simulation and Microscopy to Surface Analysis of Materials

2013

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There is a wide range of surface analysis techniques which are, generally, complementary. Nuclear and nonnuclear techniques have been available. Nuclear techniques, which are non-destructive, provide for analysis over a few microns close to the surface of the sample, giving absolute values of concentrations of isotopes and elements. They have been applied in areas such as scientific, technologic, industry, arts and medicine, using MeV ion beams [1][2][3][4][5][6][7]. Nuclear reactions permit tracing of isotopes with high sensitivities. We use ion-ion nuclear reactions, elastic scattering and the energy analysis method where, at a chosen energy of the incident ion beam, an energy spectrum is recorded of ions from nuclear events, coming from several depths in the target. Such spectra are computationally predicted, giving target composition and concentration profile information [4][5][6][7][8]. A computer program has been developed in this context, mainly for flat targets [4][5][6][7]. The non-flat target situation arises as an extension. Successful applications of the method are given using the 18 O(p,α 0 ) 15 N reaction and elastic scattering of ( 4 He) + ions. SEM and TEM are used as useful complementary techniques.Two types of samples were prepared containing thick and thin oxides, respectively. The first sample (S1) was obtained by high temperature oxidation of austenitic steel in C 18 O 2 gas. Weight gain measurements had given a 4.2 μm thick oxide. SEM has shown a reasonably flat oxide (Figure 1 (a)). The second sample (S2, also labelled Al/Al 2 O 3 ) was obtained by anodization of high purity aluminium at 100V in an aqueous solution of ammonium citrate. An oxide thickness of 0.1370 μm was expected. TEM has given an oxide film thickness of 0.1340 μm (Figure 1 (b)). The 18 O(p,α 0 ) 15 N reaction at E p =1.78 MeV and 165º was used to analyse sample S1. Figure 2 (a) shows a good computed fit to data. A 18 O step concentration profile was found, corresponding to a thick 18 O oxide with thickness X 1 =4.4 μm. Sample S2 was analysed by elastic scattering of α particles at E α =2.0 MeV and 165º. Figure 2 (b) shows a good computed fit to data. A thin oxide film thickness of X 1 =0.1350 μm was found, close to the TEM value. The fit also shows a ratio of atomic densities of O and Al slightly above 1.5. The combined use of nuclear techniques, SEM and TEM microscopy has proved to be very important for surface analysis of materials. The reported results would be difficult to obtain by other techniques.

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Differential cross-section measurements for the 12C(d,p0)13C reaction and applications to surface analysis of materials

Cited by 13 publications

References 11 publications

Resonance parameters of the reaction 12C(d,pγ)13C in the vicinity of 1450keV for accelerator energy calibration

Resonance parameters of the reaction 12C(d,pγ)13C in the vicinity of 1450keV for accelerator energy calibration

Measurements and assessment of 12C(d,pγ)13C reaction cross sections in the deuteron energy range 740–2000keV for analytical applications

Applications of Nuclear Techniques, Computer Simulation and Microscopy to Surface Analysis of Materials

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