ObjCryst++: ObjCryst::PolarizationCorr Class Reference

Polarization Correction. More...

Inheritance 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.
const RefinableObjClock &	GetClockCorr () 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 ScatteringData *	mpData
	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).

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

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

ScatteringCorr.h

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description