[ Identification | Description | Input parameters | Output parameters | Links ]
Powder1
ComponentGeneral 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, zthick. 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_a=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 |
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 | fm^2 | Structure factor of reflection | 56.8 |
Vc | AA^3 | Volume of unit cell | 85.0054 |
sigma_a | fm^2 | Absorption cross section per unit cell at 2200 m/s | 0.463 |
xwidth | m | horiz. dimension of sample, as a width | 0 |
zthick | m | thickness of sample | 0 |
h | m | the same as yheight | 0 |
Name | Unit | Description | Default |
---|---|---|---|
my_s_v2 | |||
my_a_v | |||
q_v | |||
isrect |
Powder1.comp
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[ Identification | Description | Input parameters | Output parameters | Links ]
Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Tue Sep 30 19:37:37 2008