Coherent scattering of 59.54-keV<i>γ</i>rays by Al, Cu, Zn, Cd, and Pb

Eichler, Jürgen; Barros, S. de

doi:10.1103/physreva.32.789

Cited by 34 publications

(8 citation statements)

References 12 publications

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“…On practical grounds, it is to be noted that the full S-matrix calculations are very difficult to perform, and hence, form-factor approximations are the only practical theoretical means easily available. One can see that our experiment has some momentum-transfer overlap with that of Eichler and de Barros [5], and almost complete overlap with that of Lestone et al [20]. The latter experiment has also other common features with ours: (i) use of multiple yline sources the same measurement, (ii) a large span of energies (theirs 1.…”

Section: Introductionsupporting

confidence: 74%

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Rayleigh scattering of neutron capture γ rays from lead

Kahane¹,

Moreh

Shahal³

1992

Phys. Rev. A

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Nineteen y lines in the energy range 465 -2842 keV, produced by the Ni(n, y) and Fe(n, y) reactions, were scattered from a natural Pb target at angles of 8=1.02' for the Ni source and 0=1.80' for the Fe source. Differential cross sections were measured relative to carbon and are dominated completely by Rayleigh scattering. The results were found to agree well with the modified relativistic form-factor calculations within 5%.PACS number(s): 32.80.Cy, 29.90.+r

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Section: Introductionsupporting

confidence: 74%

“…As such, an experiment performed at co=59.5 keV is needed. Such an experiment is that of Eichler and de Barros [5]. Figure 5 …”

Section: Introductionmentioning

confidence: 99%

Rayleigh scattering of neutron capture γ rays from lead

Kahane¹,

Moreh

Shahal³

1992

Phys. Rev. A

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“…the angle-differential cross section) as well as their polarization properties. To the best of our knowledge, a fully relativistic treatment of the angular distribution in Rayleigh scattering by hydrogen atom based on Dirac equation has not been performed yet [13][14][15][16][17]. Hy- * laleh.safari@oulu.fi drogen atom, although is not, perhaps, the best choice for experimental investigation, is the most abundant element in the Universe and therefore is of great interest in astrophysics.…”

Section: Introductionmentioning

confidence: 99%

Relativistic total cross section and angular distribution for Rayleigh scattering by atomic hydrogen

et al. 2012

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We study the total cross section and angular distribution in Rayleigh scattering by hydrogen atom in the ground state, within the framework of Dirac relativistic equation and second-order perturbation theory. The relativistic states used for the calculations are obtained by making use of the finite basis-set method and expressed in terms of B splines and B polynomials. We pay particular attention to the effects that arise from higher (nondipole) terms in the expansion of the electron-photon interaction. It is shown that the angular distribution of scattered photons, while symmetric with respect to the scattering angle θ = 90 • within the electric dipole approximation, becomes asymmetric when higher multipoles are taken into account. The analytical expression of the angular distribution is parametrized in terms of Legendre polynomials. Detailed calculations are performed for photons in the energy range 0.5 to 10 keV. When possible, results are compared with previous calculations.

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“…The reliability of the [58], [66], [69], [70], [76], [83], [91], [96], [98], [103], [107], [127], [132]- [135], [139]- [142], [148], [149], [153], [ [75], [113], [115], [127], [131], [135], [148], [ [76], [97], [113], [115], [131], [135], [ [75], [81], [88], [97], [115], [127], [131], [134], [135], [141], [148], [ , [69], [75], [115], [127], …”

Section: Experimental Datamentioning

confidence: 99%

“…6 10-165 87 [75], [77], [83], [85]- [88], [93], [97], [112], [113], [115], [127], [131], [135], [145], [148], [149], [ [113], [131], [133], [135], [139], [140], [148], [149] 40 Zr 13.95-661. 6 10-165 67 [75], [80], [85]- [87], [113], [115], [120], [125]- [127], [134], [135], [148], [ [80], [85]- [88], [113], [115], [127], [131], [135], [148], [ [65],…”

Section: Experimental Dataunclassified

Photon Elastic Scattering Simulation: Validation and Improvements to Geant4

Batič

Hoff

Pia

et al. 2012

IEEE Trans. Nucl. Sci.

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Abstract-Several models for the simulation of photon elastic scattering are quantitatively evaluated with respect to a large collection of experimental data retrieved from the literature. They include models based on the form factor approximation, on S-matrix calculations and on analytical parameterizations; they exploit publicly available data libraries and tabulations of theoretical calculations. Some of these models are currently implemented in general purpose Monte Carlo systems; some have been implemented and evaluated for the first time in this paper for possible use in Monte Carlo particle transport. The analysis mainly concerns the energy range between 5 keV and a few MeV. The validation process identifies the newly implemented model based on second order S-matrix calculations as the one best reproducing experimental measurements. The validation results show that, along with Rayleigh scattering, additional processes, not yet implemented in Geant4 nor in other major Monte Carlo systems, should be taken into account to realistically describe photon elastic scattering with matter above 1 MeV. Evaluations of the computational performance of the various simulation algorithms are reported along with the analysis of their physics capabilities.

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Coherent scattering of 59.54-keVγrays by Al, Cu, Zn, Cd, and Pb

Cited by 34 publications

References 12 publications

Rayleigh scattering of neutron capture γ rays from lead

Rayleigh scattering of neutron capture γ rays from lead

Relativistic total cross section and angular distribution for Rayleigh scattering by atomic hydrogen

Photon Elastic Scattering Simulation: Validation and Improvements to Geant4

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