Inner-shell ionization by ultrarelativistic electrons

Ishii, K.; Kamiya, M.; Sera, K.; Morita, S.; Tawara, H.; Oyamada, M.; Chu, T. C.

doi:10.1103/physreva.15.906

Cited by 78 publications

(57 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high-energy measurements (ε > 150 MeV) of Middleman et al [17], Ishii et al [18] and Genz et al [19] compiled by Liu et al [13] disagree with the high energy trend of our calculations. A 10% change on the overpotential limit u 0 alters our highenergy DW + extrapol cross sections by a few percents as shown in this figure.…”

Section: Calculationscontrasting

confidence: 55%

Copper fine-structure K-shell electron impact ionization cross sections for fast-electron diagnostic in laser-solid experiments

Palmeri

Quinet

Batani

2015

Atomic Data and Nuclear Data Tables

View full text Add to dashboard Cite

a b s t r a c tThe K-shell electron impact ionization (EII) cross section, along with the K-shell fluorescence yield, is one of the key atomic parameters for fast-electron diagnostic in laser-solid experiments through the K-shell emission cross section. In addition, copper is a material that has been often used in those experiments because it has a maximum total K-shell emission yield. Furthermore, in a campaign dedicated to the modeling of the K lines of astrophysical interest (Palmeri et al., 2012), the K-shell fluorescence yields for the K-vacancy fine-structure atomic levels of all the copper isonuclear ions have been calculated.In this study, the K-shell EII cross sections connecting the ground and the metastable levels of the parent copper ions to the daughter ions K-vacancy levels considered in Palmeri et al. (2012) have been determined. The relativistic distorted-wave (DW) approximation implemented in the FAC atomic code has been used for the incident electron kinetic energies up to 10 times the K-shell threshold energies. Moreover, the resulting DW cross sections have been extrapolated at higher energies using the asymptotic form proposed by Davies et al. (2013).

show abstract

Section: Calculationscontrasting

confidence: 55%

Copper fine-structure K-shell electron impact ionization cross sections for fast-electron diagnostic in laser-solid experiments

Palmeri

Quinet

Batani

2015

Atomic Data and Nuclear Data Tables

View full text Add to dashboard Cite

show abstract

“…While the gap of experimentally determined K-shell cross sections which existed until very recently in the energy region from 2 to 150 MeV is closed now -at least for medium and heavy Z elements -by the results presented in this paper and measurements reported lately [2,16] there is still very little information on L-and M-shell ionization cross sections.…”

Section: Resultsmentioning

confidence: 60%

“…A scaling behaviour derived from Bethe's ionization theory [36] which states a(Eo/I ) I2~ln(Eo/I) is not valid in the energy range Eo/I>lO 2 even when including relativistic correction factors [37]. For the scaling behaviour al~ln(Eo/I a) proposed in [2] there is until now no theoretical motivation. The physical meaning of a unique scaling for all atomic inner shells is that individual atomic structure is of minor importance at large bombarding energies.…”

Section: Scaling Behaviour Of the Cross Sectionmentioning

confidence: 96%

“…In recent years the efforts to study the collision mechanisms which govern inner-shell vacancy production by relativistic projectiles began to increase and involved the bombardment by electrons [1][2][3], protons [4,5] and heavy ions [63. The investigations with high energy electrons not only have the advantage that relativistic effects can be studied already at relative moderate electron energies but also involvein contrast to the heavier particles -the consideration of exchange and interference effects between the incident and atomic electron.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Inner-shell ionization by relativistic electron impact

et al. 1979

View full text Add to dashboard Cite

show abstract

“…The strong influence of F(u) is demonstrated in Fig. 6, where it can be seen that F(u) is close to 1 for Z < 29 and overvoltages below 5, but rises sharply for larger Z and increasing u (see the scaling law for ultrarelativistic electrons given by Ishii et al [64]). …”

Section: Reduced Cross Section (Scaling Considerations)mentioning

confidence: 87%

A semi-empirical approach to the calculation of absolute inner-shell electron impact ionization cross sections

Deutsch

Margreiter

Märk

1994

Z Phys D - Atoms, Molecules and Clusters

View full text Add to dashboard Cite

Abstract. Extending a recently developed semiclassical approach, we report the development of a formula which allows the satisfactory description and prediction of absolute electron impact ionization cross sections for K, L, and M inner-shell ionization in the energy range from threshold up to 109 eV for all elements. The present formulation also allows to derive and extend a previously noted scaling law for K-shell ionization. The present results are compared with previous theoretical and experimental determinations where available.

show abstract

Inner-shell ionization by ultrarelativistic electrons

Cited by 78 publications

References 16 publications

Copper fine-structure K-shell electron impact ionization cross sections for fast-electron diagnostic in laser-solid experiments

Copper fine-structure K-shell electron impact ionization cross sections for fast-electron diagnostic in laser-solid experiments

Inner-shell ionization by relativistic electron impact

A semi-empirical approach to the calculation of absolute inner-shell electron impact ionization cross sections

Contact Info

Product

Resources

About