Data Item _diffrn_radiation.polarisn_ratio

General

Item name
_diffrn_radiation.polarisn_ratio
Category name
diffrn_radiation
Attribute name
polarisn_ratio
Required in PDB entries
no
Used in currrent PDB entries
No

Item Description

Polarization ratio of the diffraction beam incident on the crystal. This is the ratio of the perpendicularly polarized to the parallel-polarized component of the radiation. The perpendicular component forms an angle of _diffrn_radiation.polarisn_norm to the normal to the diffraction plane of the sample (i.e. the plane containing the incident and reflected beams).

Data Type

Data type code
float
Data type detail
float item types are the subset of numbers that are the floating numbers.
Primitive data type code
numb
Regular expression
-?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?

Allowed Boundary Conditions

Minimum Value Maximum Value
0.0

+∞

Aliases

Alias Item Name Dictionary Name Dictionary Version
_diffrn_radiation_polarisn_ratio cif_core.dic 2.0.1