Study on electron scattering in solid targets using accurate transport cross-sections

Rouabah, Z.; Bouarissa, N.; Champion, C.; Bouaouadja, Noureddine

doi:10.1016/j.apsusc.2009.01.074

Cited by 12 publications

(7 citation statements)

References 29 publications

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“…Another interesting feature of Dapor's data is the almost constant magnitude of v for electron scattering, contrary to the present result. The data of Rouabah et al [17] also vary with energy as seen here. The agreement is not very good for Cu between present data and the results of Rouabah et al [17] who used the Monte Carlo simulation technique to determine the range.…”

Section: Mean Number Of Wide-angle Collisionsupporting

confidence: 67%

“…The targets considered in this article are solid Al, Cu, Li, Na. For Al and Cu, a number of previous works were available to compare our findings with [15][16][17][18][19][20][21][22][23][24]. Since the transport cross section, range of penetration and number of wide-angle collisions form the basic input for the backscattering calculation, we compare these parameters for both electron and positron scattering to available data [15-17, 22, 25].…”

Section: Introductionmentioning

confidence: 94%

“…The overall agreement with Dapor's result is satisfactory. Further, Rouabah [16,17] used an analytical cross section of Jablonski and introduced a correction factor for improved results. As can be seen from table 2, the data of Jablonski [25] obtained from a polynomial fit is relatively higher than other theoretical cross sections.…”

Section: Transport Cross Sectionmentioning

confidence: 99%

“…The present mean number of wide-angle collisions for electron and positron scattering from solid atoms are tabulated in tables 7-10. For electron collisions, there are two theoretical data found in the literature [15,17]. Dapor [15] have used a fitting technique to determine R at different energies.…”

Section: Mean Number Of Wide-angle Collisionmentioning

confidence: 99%

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Electron and positron backscattering from condensed targets

Sinha¹,

Subraveti²,

Antony³

2021

J. Phys. B: At. Mol. Opt. Phys.

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The backscattering process for electron and positron impinging on condensed targets is studied here. The calculation is performed for Li, Na, Al and Cu atoms in the 500–3000 eV energy range. The well known Vicanek and Urbassek theory is used to determine the backscattering coefficient for present solid atoms. To analyze the elastic scattering cross section, spherical complex optical potential formalism is used. Apart from the backscattering coefficient, momentum transfer cross section, range of penetration, and mean number of wide-angle collisions are also tabulated and compared to the available data. No previous work was found reporting the range of penetration for the atoms. Hence, we also report the electron backscattering coefficient and range of penetration for liquid water for which experimental and theoretical data are available for the range of penetration. The electron backscattering coefficient for liquid water is reported for the first time here.

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Section: Mean Number Of Wide-angle Collisionsupporting

confidence: 67%

Section: Introductionmentioning

confidence: 94%

Section: Transport Cross Sectionmentioning

confidence: 99%

Section: Mean Number Of Wide-angle Collisionmentioning

confidence: 99%

See 2 more Smart Citations

Electron and positron backscattering from condensed targets

Sinha¹,

Subraveti²,

Antony³

2021

J. Phys. B: At. Mol. Opt. Phys.

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“…In the second approach used in the present work (referred to as PW2), the elastic scattering is treated by using the analytical approximation as independently developed by Baro et al (1994Baro et al ( , 1995 and by Miotello and Dapor (1997). In this approximation, the transport cross-section has been calculated for each target element of interest using the approximation of Rouabah et al (2009). Similarly to the first approach of the present contribution, the inelastic scattering has been treated using Gryzinski excitation function expressions as described by Bouarissa (1987).…”

Section: Theoretical Detailsmentioning

confidence: 99%

Positron backscattering from solid targets: Modeling of scattering processes via various approaches

Kribaa

Rouabah

Loirec

et al. 2016

Micron

Self Cite

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Monte Carlo simulation of 1-4keV positron backscattering from semi-infinite solid targets ranging from Be (z=4) to Au (z=79) with normal angle of incidence is here reported. In our study, the elastic and inelastic scattering cross sections are modeled by using various approaches based on either a classical or a quantum mechanical treatment. Calculations of positron backscattering coefficient are then reported for the solid targets of interest. The results obtained show a fairly good agreement with the data available in the literature. The dependence of the positron backscattering coefficient versus the atomic number of the solid target of interest has been investigated. In this respect, polynomial functions are proposed which does not require any recourse to Monte Carlo calculations.

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