It is the gamma value of your scanner.

Namespace: HiComponents.IEvolution
Assembly: IEvolution2 (in IEvolution2.dll) Version: 10.1.0.0

Syntax

         
 C#  Visual Basic  Visual C++ 
public double Gamma { get; }
Public ReadOnly Property Gamma As Double
	Get
public:
property double Gamma {
	double get ();
}

See Also