Large-angle Rayleigh scattering of linearly polarized, hard synchrotron x rays by krypton and xenon

Smend, F.; Schaupp, D.; Czerwinski, H.; Schumacher, M.; Millhouse, A. H.; Kissel, Lynn

doi:10.1103/physreva.36.5189

Cited by 27 publications

(18 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(However, see an alternative model based on angle-independent quantities g', g" discussed later in a footnote.) For large-angle experiments near the K-shell photoeffect thresholds of 36Kr and 54Xe (Smend, Schaupp, Czerwinski, Schumacher, Millhouse & Kissel, 1987), angle-independent anomalous-scattering-factor predictions agreed at the 10% or better level with S-matrix predictions and experiment. At the 10% or better level, it is expected that angle-independent anomalous-scattering-factor predictions will generally agree with S-matrix predictions near and below the K-shell photoeffect threshold.…”

Section: Examplessupporting

confidence: 51%

Corrections to tabulated anomalous-scattering factors

Kissel¹,

Pratt²

1990

Acta Cryst Sect A

181

104

View full text Add to dashboard Cite

Section: Examplessupporting

confidence: 51%

Corrections to tabulated anomalous-scattering factors

Kissel¹,

Pratt²

1990

Acta Cryst Sect A

181

104

View full text Add to dashboard Cite

“…Vice versa, with an established theory the incident polarization states of the photons can be reconstructed from the measured polarization of the outgoing photons. However, with respect to Rayleigh scattering, experiments involving (linearly) polarized hard x-rays were up to now restricted to scenarios where either the differential cross section for a linearly polarized incident beam [6,7,20,51,52] or the polarization of the scattered beam for an unpolarized incident beam [16,32,50,53,54,70] was measured. Several of those experiments were compared to theoretical predictions in [44].…”

Section: Introductionmentioning

confidence: 99%

Polarization transfer in Rayleigh scattering of hard x-rays

et al. 2016

View full text Add to dashboard Cite

The following errors were introduced in the production process:• In the abstract it says that at θ=90°, a degree of polarization of +0.27%±0.12% was measured. This number should be +27%±12%.• On page 5 there are three occurrences of an amplitude A. All of them should be A P instead. AbstractWe report on the first elastic hard x-ray scattering experiment where the linear polarization characteristics of both the incident and the scattered radiation were observed. Rayleigh scattering was investigated in a relativistic regime by using a high-Z target material, namely gold, and a photon energy of 175keV. Although the incident synchrotron radiation was nearly 100% linearly polarized, at a scattering angle of 90 q =  we observed a strong depolarization for the scattered photons with a degree of linear polarization of 0.27% 0.12% +  only. This finding agrees with second-order quantum electrodynamics calculations of Rayleigh scattering, when taking into account a small polarization impurity of the incident photon beam which was determined to be close to 98%. The latter value was obtained independently from the elastic scattering by analyzing photons that were Compton-scattered in the target. Moreover, our results indicate that when relying on state-of-the-art theory, Rayleigh scattering could provide a very accurate method to diagnose polarization impurities in a broad region of hard x-ray energies.

show abstract

“…Although several experiments have been carried out to measure the * yangke@sinap.ac.cn † lfzhu@ustc.edu.cn differential cross section of x-ray elastic scattering of noble gases [5][6][7], the detectors used in these works, i.e., the intrinsic Ge planar detector [5,6] and the scintillation counter [7], have an energy resolution of only about several hundred eV, which may resolve the elastic scattering and the Compton scattering at large scattering angles, but they cannot resolve the elastic scattering and inelastic excitations because the excitation energy of the valence shell transition of atoms and molecules is less than 25 eV, which is much less than the energy resolution of these detectors. Furthermore, the ionization continuum also contributes to the elastic scattering in these experiments due to the same reason.…”

mentioning

confidence: 99%

Determination of the electronic structure of atoms and molecules in the ground state: Measurement of molecular hydrogen by high-resolution x-ray scattering

Liu

Mei

et al. 2014

Phys. Rev. A

View full text Add to dashboard Cite

The high-resolution x-ray-scattering technique is used to study the elastic scattering of atoms and molecules in the gas phase. The elastic squared form factor, which is the square of the Fourier transformation of the electron density distribution in position space and reveals the pure electronic structure of atoms and molecules in the ground state, of molecular hydrogen is measured at an incident photon energy of about 9889 eV and an energy resolution of about 70 meV. Although it is generally thought that the x-ray-scattering technique is identical to high-energy electron scattering, at least for elastic scattering these two techniques have an apparent difference, i.e., the pure electronic structure of a molecule in the ground state can be determined by x-ray scattering while it cannot be obtained by the high-energy electron impact method due to the interference between the scattering of separate nuclei and of the electrons in the target. The present experimental results match the theoretical calculations very well, which demonstrates that high-resolution x-ray scattering is a powerful tool to study the electronic structure of atoms and molecules in the ground state.

show abstract

Large-angle Rayleigh scattering of linearly polarized, hard synchrotron x rays by krypton and xenon

Cited by 27 publications

References 16 publications

Corrections to tabulated anomalous-scattering factors

Corrections to tabulated anomalous-scattering factors

Polarization transfer in Rayleigh scattering of hard x-rays

Determination of the electronic structure of atoms and molecules in the ground state: Measurement of molecular hydrogen by high-resolution x-ray scattering

Contact Info

Product

Resources

About