A graphical 2D diffraction pattern, or Ring Pattern, can be produced for every entry in the icdd pdf-4+ database
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06.03.2018
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Each ring corresponds to a peak (d-spacing and intensity), calculated using the Crystallite Size
The higher the intensity, the brighter the ring.
There are various preferences used to control how the Ring Pattern is calculated and displayed.
The Plot Size
The Camera Length
Narrow rings correspond to larger Crystallite Sizes .
The Wavelength
A graphical 2D
diffraction pattern
, or
Ring Pattern
, can be produced for every entry in the ICDD PDF-4+ database.
A graphical 2D diffraction pattern, or
Ring Pattern
, can be produced for every entry in the ICDD PDF-4+ database.
Each ring corresponds to a peak (d-spacing and intensity),
calculated using the
Crystallite Size
parameter specified in the ‘Ring Pattern’.
Each ring corresponds to a peak (d-spacing and intensity), calculated using the
Crystallite Size
parameter specified in the ‘Ring Pattern’.
The
higher the intensity
, the brighter the ring.
The simulation assumes:
The simulation assumes:
No preferred orientation in the specimen
Uniaxial positioning of the detector (transmission geometry with incident beam centered)
Infinite number of
randomly oriented crystallites
There are various preferences used to control how the Ring Pattern is calculated and displayed.
There are various preferences used to control how the Ring Pattern is calculated and displayed.
The
Plot Size
controls the detector dimensions (width and height in cm).
The
Plot Size
controls the detector dimensions (width and height in cm).
If the Ring Pattern is not visible on the form,
try increasing the
Plot Size
.
The
Camera Length
controls the sample-to-detector distance (in cm).
The
Camera Length
controls the sample-to-detector distance (in cm).
The
Crystallite Size
parameter (in Å) affects the broadness of the rings.
The
Crystallite Size
parameter (in Å) affects the broadness of the rings.
Narrow rings correspond to larger
Crystallite Sizes
.
The
Scale
Background
and
Scale Font
colors control the appearance of the Ring Pattern.
The
Scale Background
and
Scale Font
colors control the appearance of the Ring Pattern.
The
Wavelength
of the Ring Pattern can be set using the corresponding preferences.
The
Wavelength
of the Ring Pattern can be set using the corresponding preferences.
Use the
Experimental
preferences for experimental patterns.
Use the
Calculated
preferences for calculated patterns.
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