The determination of energy losses of nitrogen ions from the backscattering spectra

Neshev, F. G.; Puzanov, A. A.; Shyshkin, K. S.; Sirotinin, E.I.; Tulinov, A.F.; Ved'manov, G. D.

doi:10.1080/00337577508235400

Cited by 14 publications

(3 citation statements)

References 7 publications

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“…The experimental procedure is based on the fact [38] that the height of the backscattering spectrum of a given sample contains information on the stopping power [39]. Different from previous works-where the stopping power was basically deduced directly from the spectrum height of a sample [40][41][42]-we have deduced the stopping data relative to reference samples with similar atomic number and well-known stopping power values (in this work: Cu, Ag, and Au). As an example, the backscattering spectrum of a material of interest (e.g., Ta) is recorded relative to a reference sample (e.g., Au), and the ratio of the spectrum heights H Expt Ta /H Expt Au is compared to the ratio obtained from the simulations H Sim Ta /H Sim Au using Monte Carlo TRBS [43] and SIMNRA [44] codes.…”

Section: Experiments and Evaluationmentioning

confidence: 99%

Experimental electronic stopping cross section of transition metals for light ions: Systematics around the stopping maximum

2020

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Electronic stopping cross sections of different transition metals (Nb, Pd, Ta, and Pt) for light ions have been experimentally determined in a wide energy range. We performed relative measurements using different backscattering geometries for protons (from 50 to 5000 keV) and helium (from 80 to 10 000 keV). Data are compared to values from the literature, as well as to the widely used semiempirical (SRIM) and modeling (DPASS) approaches. The magnitude and energy dependence of the deduced stopping power at energies around the Bragg peak, as well as the different trends observed within individual periods, are analyzed with respect to target atomic number and electronic structure. We also compare the observed magnitude of electronic stopping to several different theoretical approaches.

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Section: Experiments and Evaluationmentioning

confidence: 99%

Experimental electronic stopping cross section of transition metals for light ions: Systematics around the stopping maximum

2020

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“…In the backscattering approach, apart from the experiments employing self-supporting foils, we rely on the fact that the height H of an energy spectrum contains information on the stopping cross section factor [ε], which in turn, includes the electronic stopping cross section ε of the projectile on the way in and on the way out of the target [36,37]. Direct evaluation of the electronic stopping from a single BS energy spectrum would require precise and accurate knowledge on the relevant experimental parameters [38,39]. Therefore, we performed relative measurements between the sample of interest, i.e., W to a reference sample with well-known stopping power, i.e., Au under otherwise identical experimental conditions [40].…”

Section: Evaluation Proceduresmentioning

confidence: 99%

Experimental electronic stopping cross section of tungsten for light ions in a large energy interval

Moro

Wolf

Bruckner

et al. 2021

Nuclear Instruments and Methods in Physics Research Section B:

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“…For defining the small-angle approximation applicability limits, of great importance is the energy dependence of Kk(E) described by expression (2). This expression shows that the values of K k ( E ) are determined exclusively by the angular and energy dependence of the ion scattering cross-section and consequently by the type of ion-atom interaction potential.…”

Section: An$ = (-L)k2k+l(k+ 1/2)(n!)z/(n+k+ L)!(n-k)!;mentioning

confidence: 99%

Ion-atom interaction potential effects on the shape of energy spectra of ions backscattered by a thick target

1985

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Based o n the general Gaudsmit-Saunderson-Lewis model for multiple scattering in a semiinfinite medium, an expression accounting for the effects of multiple scattering on the shape of the backscattering energy spectrum has been obtained. This expression is represented by a series of ion angular distribution moments. The limits of the applicability of the small-angle approximation t o the description of multiple scattering are defined. It is shown that the sensitivity of the angular distribution moments of multiple scattered ions to the type of ion-atom potential increases with an increase in the moment order. The possibility of investigation of the ion-atom interaction potential experimentally over a wide range of impact parameters by the backscattering method is discussed.

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The determination of energy losses of nitrogen ions from the backscattering spectra

Cited by 14 publications

References 7 publications

Experimental electronic stopping cross section of transition metals for light ions: Systematics around the stopping maximum

Experimental electronic stopping cross section of transition metals for light ions: Systematics around the stopping maximum

Experimental electronic stopping cross section of tungsten for light ions in a large energy interval

Ion-atom interaction potential effects on the shape of energy spectra of ions backscattered by a thick target

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