Data Item _diffrn_radiation.polarizn_Stokes_U_esd
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General 
- Item name
- _diffrn_radiation.polarizn_Stokes_U_esd
- Category name
- diffrn_radiation
- Attribute name
- polarizn_Stokes_U_esd
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
The standard uncertainty (estimated standard deviation, e.s.d.)
of _diffrn_radiation.polarizn_Stokes_U,
(Ip-In)*sin(2*theta), where Ip is the intensity
(amplitude squared) of the electric vector in the plane of
polarization, In is the intensity (amplitude squared) of
the electric vector in the plane of the normal to the
plane of polarization, and theta is the angle as viewed
from the specimen, between the normal to the polarization
plane and the laboratory Y-axis as defined in the
AXIS category.
Data Type 
- Data type code
- float
- Data type detail
- float item types are the subset of numbers that are the floating point 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 | +∞ |
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _diffrn_radiation.polarizn_Stokes_U | associated_value |