Pair, Triplet, and Total Atomic Cross Sections (and Mass Attenuation Coefficients) for 1 MeV-100 GeV Photons in Elements <i>Z</i>=1 to 100

Hubbell, J.H.; Gimm, H.; Oeverboe, I

doi:10.1063/1.555629

Cited by 308 publications

(192 citation statements)

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“…[1,2]. These processes should be taken into account when considering electromagnetic showers in detectors, they also give the significant part of the radiative corrections in many cases.…”

Section: Introductionmentioning

confidence: 99%

Charge asymmetry in the differential cross section of high-energy bremsstrahlung in the field of a heavy atom

Krachkov

Milstein

2015

Phys. Rev. A

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The distinction between the charged particle and antiparticle differential cross sections of highenergy bremsstrahlung in the electric field of a heavy atom is investigated. The consideration is based on the quasiclassical approximation to the wave functions in the external field. The charge asymmetry (the ratio of the antisymmetric and symmetric parts of the differential cross section) arises due to the account for the first quasiclassical correction to the differential cross section. All evaluations are performed with the exact account of the atomic field. We consider in detail the charge asymmetry for electrons and muons. For electrons, the nuclear size effect is not important while for muons this effect should be taken into account. For the longitudinal polarization of the initial charged particle, the account for the first quasiclassical correction to the differential cross section leads to the asymmetry in the cross section with respect to the replacement ϕ → −ϕ, where ϕ is the azimuth angle between the photon momentum and the momentum of the final charged particle.

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“…[1,2]. These processes should be taken into account when considering electromagnetic showers in detectors, they also give the significant part of the radiative corrections in many cases.…”

Section: Introductionmentioning

confidence: 99%

Charge asymmetry in the differential cross section of high-energy bremsstrahlung in the field of a heavy atom

Krachkov

Milstein

2015

Phys. Rev. A

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“…They have different dependence on the photon energy ω. At ω 10MeV , the cross section of e + e − pair production becomes dominant [2]. The coherent contribution σ coh to the pair production cross section is roughly Z times larger than the incoherent one (Z is the atomic number), thereby being the most important for heavy atoms.…”

Section: Introductionmentioning

confidence: 99%

High-energy expansion of Coulomb corrections to thee+e−photoproduction cross section

Lee¹,

Milstein²,

Strakhovenko³

2004

Phys. Rev. A

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First correction to the high-energy asymptotics of the total e + e − photoproduction cross section in the electric field of a heavy atom is derived with the exact account of this field. The consideration is based on the use of the quasiclassical electron Green function in an external electric field. The next-to-leading correction to the cross section is discussed. The influence of screening on the Coulomb corrections is examined in the leading approximation. It turns out that the high-energy asymptotics of the corresponding correction is independent of the photon energy. In the region where both produced particles are relativistic, the corrections to the high-energy asymptotics of the electron (positron) spectrum are derived. Our results for the total cross section are in good agreement with experimental data for photon energies down to a few M eV . In addition, the corrections to the bremsstrahlung spectrum are obtained from the corresponding results for pair production.

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“…The initially mentioned two models are in fact very similar, in that they duplicate code for an empirically parameterized cross section calculation [16] derived from theoretical tabulations by [18], [19]. They differ in the final state generation.…”

Section: Compton Scattering In Geant4 96mentioning

confidence: 99%

“…2. In the first development cycle documented in this paper three total cross section policies were implemented, which correspond to the three uniquely distinct modeling approaches documented in Section II: standard (empirical fit to [18], [19]), EPDL-based and Penelope-based (Penelope).…”

Section: Refactored Softwarementioning

confidence: 99%

“…For the validation of total scattering cross sections unit tests were done for the three distinct policy classes described in Section III: standard (empirical fit to [18], [19]) , EPDLbased and Penelope-based (Penelope). Similarly, the validation of differential cross sections involved unit tests associated with the three options mentioned in Section III.…”

Section: B Simulation Modelsmentioning

confidence: 99%

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Validation of Compton scattering Monte Carlo simulation models

Weidenspointner

Batič²,

Hauf

et al. 2013

2013 IEEE Nuclear Science Symposium and Medical Imaging Conference (2013 NSS/MIC)

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Abstract-Several models for the Monte Carlo simulation of Compton scattering on electrons are quantitatively evaluated with respect to a large collection of experimental data retrieved from the literature. Some of these models are currently implemented in general purpose Monte Carlo systems; some have been implemented and evaluated for possible use in Monte Carlo particle transport for the first time in this study. Here we present first and preliminary results concerning total and differential Compton scattering cross sections.

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Pair, Triplet, and Total Atomic Cross Sections (and Mass Attenuation Coefficients) for 1 MeV-100 GeV Photons in Elements Z=1 to 100

Cited by 308 publications

References 0 publications

Charge asymmetry in the differential cross section of high-energy bremsstrahlung in the field of a heavy atom

Charge asymmetry in the differential cross section of high-energy bremsstrahlung in the field of a heavy atom

High-energy expansion of Coulomb corrections to thee+e−photoproduction cross section

Validation of Compton scattering Monte Carlo simulation models

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