FOX/ObjCryst++  1.10.X (development)
ObjCryst::PolarizationCorr Class Reference

Polarization Correction. More...

+ Inheritance diagram for ObjCryst::PolarizationCorr:
+ Collaboration diagram for ObjCryst::PolarizationCorr:

Public Member Functions

 PolarizationCorr (const ScatteringData &data)
virtual const string & GetName () const
 Get the name of this object.
virtual const string & GetClassName () const
 Get the name of the class.
- Public Member Functions inherited from ObjCryst::ScatteringCorr
 ScatteringCorr (const ScatteringData &data)
 Constructor, with the associated ScatteringData object.
const CrystVector_REAL & GetCorr () const
 Get the vector of corrections for all reflections. More...
const RefinableObjClockGetClockCorr () const
 Get the value of the clock corresponding to the last time the correction was actually computed.

Protected Member Functions

virtual void CalcCorr () const
 Do the computation of corrected intensities.

Protected Attributes

REAL mPolarAfactor
- Protected Attributes inherited from ObjCryst::ScatteringCorr
const ScatteringDatampData
 The associated ScatteringData object.
CrystVector_REAL mCorr
 The vector of correction to intensities.
RefinableObjClock mClockCorrCalc
 The clock marking the last time the correction was calculated.

Detailed Description

Polarization Correction.

So far, it only considers the correction for equatorial diffraction: $ P = \frac{1}{1+A}\left(1+A\cos^2(2\theta)\right) $ (Polarization factor), with $ A = \frac{1-f}{1+f} $, where f is the polarization rate of the incident beam in the plane which (i) includes the incident beam, and (ii) is perpendicular to the diffracting plane. For an X-Ray Tube without monochromator, A=1, and if there is a monochromator : $ A = \cos^2(2\theta_{mono}) $

Currently, the linear polarization factor is directly read from the radiation object, and the linear polarization (if any) is assumed to be perpendicular to the diffracting plane (standard synchrotron geometry).

: extend this to take into account other diffracting & monochromatic geometries.

Definition at line 94 of file ScatteringCorr.h.

The documentation for this class was generated from the following files: