Energy loss of protons in Si, Ge and Mo

Izmailov, Sh. Z.; Sirotinin, E.I.; Tulinov, A.F.

doi:10.1016/0029-554x(80)91235-5

Cited by 13 publications

(3 citation statements)

References 5 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 case of H in Mo we include the data from Refs. (Izmailov et al, 1980;Sirotinin et al, 1984), whereas for He we represent measurements from Refs. (Chu et al, 1973;Lin et al, 1973;Leminen and Fontell, 1974).…”

Section: Molybdenummentioning

confidence: 99%

Electronic cross section, stopping power and energy-loss straggling of metals for swift protons, alpha particles and electrons

de Vera,

Abril,

Garcia-Molina

2023

Front. Mater.

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Understanding and quantifying the electronic inelastic interactions of swift ions and electrons in metals is fundamental for many applications of charged particle beams. A common theoretical approach is moreover desirable for the case of both types of projectiles, as large numbers of secondary electrons arise as the result of ion interaction with metals. The electronic cross section, stopping power and energy-loss straggling resulting from the interaction of swift protons, alpha particles and electrons when moving through the metals aluminum, iron, copper, molybdenum, platinum and gold, are calculated theoretically for a wide energy range of the projectiles. The model is based on the dielectric formalism, which realistically accounts for the excitation spectrum of each metal through the Mermin Energy-Loss Function–Generalized Oscillator Strength (MELF-GOS) methodology. The impact of the complexity of the excitation spectrum of each metal (encompassing interband transitions and collective excitations), as well as the different sources of (sometimes conflicting) optical data is analysed in detail. Specific interactions are considered for each projectile, such as electron capture/loss and electron cloud polarisation for ions, and indistinguishability, exchange and low-energy corrections for electrons. An estimate of possible contributions of surface excitations to the interaction probabilities of low energy electrons is given. Comparison of our results with a large collection of available experimental data shows good agreement. As a practical and useful outcome of the work, we provide analytical expressions fitting all our calculated quantities, which can be applied for simulation or comparison purposes.

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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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Energy loss of protons in Si, Ge and Mo

Cited by 13 publications

References 5 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

Electronic cross section, stopping power and energy-loss straggling of metals for swift protons, alpha particles and electrons

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

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