### Abstract

Original language | Undefined |
---|---|

Pages (from-to) | 503-509 |

Journal | Acta crystallographica Section A: Crystal physics, diffraction, theoretical and general crystallography |

Volume | 36 |

DOIs | |

Publication status | Published - 1980 |

### Keywords

- IR-59204

### Cite this

*Acta crystallographica Section A: Crystal physics, diffraction, theoretical and general crystallography*,

*36*, 503-509. https://doi.org/10.1107/S0567739480001155

}

*Acta crystallographica Section A: Crystal physics, diffraction, theoretical and general crystallography*, vol. 36, pp. 503-509. https://doi.org/10.1107/S0567739480001155

**A theoretical study of elastic X-ray scattering.** / Stewart, Robert F.; Feil, Dirk.

Research output: Contribution to journal › Article › Academic

TY - JOUR

T1 - A theoretical study of elastic X-ray scattering

AU - Stewart, Robert F.

AU - Feil, Dirk

PY - 1980

Y1 - 1980

N2 - Bragg X-ray scattering intensities are defined as scattering by the thermodynamic average electron-charge density. Purely elastic, kinematic X-ray scattering by a target in thermal equilibrium is always larger than Bragg scattering. At low temperatures, the elastic scattering becomes Bragg scattering. For large molecules, such as a crystal, at ordinary temperatures the elastic and Bragg scattering differ in a relative sense by O(N-1), where N is the number of vibrational degrees of freedom. For most practical cases the Bragg scattering is essentially the same as purely elastic scattering of X-rays.

AB - Bragg X-ray scattering intensities are defined as scattering by the thermodynamic average electron-charge density. Purely elastic, kinematic X-ray scattering by a target in thermal equilibrium is always larger than Bragg scattering. At low temperatures, the elastic scattering becomes Bragg scattering. For large molecules, such as a crystal, at ordinary temperatures the elastic and Bragg scattering differ in a relative sense by O(N-1), where N is the number of vibrational degrees of freedom. For most practical cases the Bragg scattering is essentially the same as purely elastic scattering of X-rays.

KW - IR-59204

U2 - 10.1107/S0567739480001155

DO - 10.1107/S0567739480001155

M3 - Article

VL - 36

SP - 503

EP - 509

JO - Acta crystallographica Section A: Foundations of crystallography

JF - Acta crystallographica Section A: Foundations of crystallography

SN - 0108-7673

ER -