[ Identification | Description | Input parameters | Output parameters | Links ]

`Powder1`

Component-
**Author:**E.M.Lauridsen, N.B.Christensen, A.B.Abrahamsen -
**Origin:**Risoe -
**Date:**4.2.98 -
**Version:**(Unknown)

General powder sample with a single scattering vector. No multiple , scattering, no incoherent scattering, no secondary extinction. The shape of the sample may be a cylinder of given radius or a box with dimensions xwidth, yheight, zdepth. The efficient is highly improved when restricting the vertical scattering range on the Debye-Scherrer cone (with 'd_phi'). You may use PowderN to use N scattering lines defined in a file. Example: Powder1(radius=0.015,yheight=0.05,q =1.8049,d_phi=0.07,pack=1, j=6,DW=1,F2=56.8,Vc=85.0054,sigma_abs=0.463)

Name | Unit | Description | Default |
---|---|---|---|

radius | m | Radius of sample in (x,z) plane | 0.01 |

yheight | m | Height of sample y direction | 0.05 |

xwidth | m | horiz. dimension of sample, as a width | 0 |

zdepth | m | depth of box sample | 0 |

q | AA^-1 | Scattering vector of reflection | 1.8049 |

d | AA | d-spacing for sample, overrides 'q' | 0 |

d_phi | deg,0-180 | Angle corresponding to the vertical angular range to focus to, e.g. detector height. 0 for no focusing | 0 |

pack | 1 | Packing factor | 1 |

j | 1 | Multiplicity of reflection | 6 |

DW | 1 | Debye-Waller factor of reflection | 1 |

F2 | barns | Structure factor of reflection | 56.8 |

Vc | AA^3 | Volume of unit cell | 85.0054 |

sigma_abs | barns | Absorption cross section per unit cell at 2200 m/s | 0.463 |

Name | Unit | Description | Default |
---|---|---|---|

my_s_v2 |
|||

my_a_v |
|||

q_v |
|||

isrect |

- Source code for
`Powder1.comp`

. - Test results (not up-to-date).
- See also: Powder1, Powder2 and PowderN

[ Identification | Description | Input parameters | Output parameters | Links ]

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Tue May 26 13:03:59 2020