X-ray emission cross sections and fluorescence yields for light atoms and molecules by electron impact

Tawara, H.; Harrison, K.G.; Heer, F. J. de

doi:10.1016/0031-8914(73)90321-2

Cited by 106 publications

(54 citation statements)

References 39 publications

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“…An inspection of the Bethe-plot (Fig. 6) for the corrected data together with other experimental data [2,9] shows that the data fit a universal curve strengthening the reliability of the plotted data. Deviations from the "ideal shape" may be due to experiment, but they may be systematically caused as probably in the case of silver by relativistic influences.…”

Section: Resultsmentioning

confidence: 91%

Absolute electron impactK-ionization cross sections of titanium and nickel (?50 keV)

Jessenberger

Hink

1975

Z Physik A

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Abstract. The absolute K-ionization cross sections of Ti and Ni by electron impact (impact energy__< 50 keV) was measured detecting the X-rays emitted by thin solid film targets of known mass thickness with a flow proportional counter. The experimental method, especially the correction procedures and the measurements are described, the results compared with calculations in different theoretical approaches. For impact energies above Eo/EK>I.5 (EK=K-shell ionization energy) a systematic deviation of about +20%occurs in comparison with the best agreeing calculations of M.R.H. Rudge and S.B. Schwartz. A fit to Drawin's empirical formula reveals that the measurements are approximated better than _+ 10 % within the range of comparison.

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Section: Resultsmentioning

confidence: 91%

Absolute electron impactK-ionization cross sections of titanium and nickel (?50 keV)

Jessenberger

Hink

1975

Z Physik A

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“…The second column contains one of four types of data identified by their title-SE for secondary electron yield, BS for backscattered electron yield, SP for stopping power (in eV per angstrom), or SG for x-ray ionization cross sections (in barns, where 1 barn = 10 −24 cm 2 /atom). The title also includes the reference number, for example, SE (37), to link it with the corresponding energy value column. The files can be read into most spreadsheet programs for further analysis and for plotting purposes.…”

Section: Structure Of the Databasementioning

confidence: 99%

A database on electron‐solid interactions

Joy¹

1995

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Summary:Monte Carlo modeling of electron-solid interactions requires a detailed and accurate supply of experimental data on which to base its physics and against which to test its predictions. To meet this need, a collection of data-comprising measurements of secondary and backscattered electron yields, electron stopping powers, and x-ray ionization cross sections, as a function of energy-has been assembled from published sources. The quality and quantity of the compilation varies widely, with little or no data being available for the majority of elements in the periodic table, while results for complex materials of current technologic interest are also almost nonexistent. To meet the needs of Monte Carlo simulation in areas such as dimensional metrology or microanalysis, a program of systematic measurements is required.

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“…In the case of single ionization the asymptotic energy dependence double ionization cross sections of neon subshells by electron impact. G(ls2s22p 6) data are taken from Tawara et al [27] (aidE -t ln E) is correctly predicted by the classical binary encounter approximation.…”

Section: The Classical Binary Encounter Approximation ( Bea )mentioning

confidence: 99%

“…In the case of proton impact the a(Ne +) data from de Heer et al [30] ionization by proton [24][25][26] and electron impact [27] are included in Fig. 3.…”

Section: -17mentioning

confidence: 99%

Single and double ionization of neon 2s- and 2p-subshells by proton and electron impact

Eckhardt

Schartner

1983

Z Physik A

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Absolute single and double ionization cross sections of neon 2s-and 2p-subshells for proton (40-900 keV) and electron impact (0.2-10 keV) have been measured using photon spectroscopy in the spectral range of the vacuum ultraviolet. Cross sections for double ionization decrease more rapidly with increasing impact energy than cross sections for single ionization. No definite asymptotic energy dependence of a Bethe-Fano-plot could be found for double ionization in contrast to single ionization. The experimental results are compared with theoretical predictions of the shake-off model and Gryzinski's classical binary encounter theory. Better agreement is found with the latter, indicating that successive binary collisions have to be considered as a strong mechanism for double ionization by protons or electrons of the investigated energy range. Comparison is made with other experimental results for double ionization by photon impact or capture ionization by proton impact.

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X-ray emission cross sections and fluorescence yields for light atoms and molecules by electron impact

Cited by 106 publications

References 39 publications

Absolute electron impactK-ionization cross sections of titanium and nickel (?50 keV)

Absolute electron impactK-ionization cross sections of titanium and nickel (?50 keV)

A database on electron‐solid interactions

Single and double ionization of neon 2s- and 2p-subshells by proton and electron impact

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