Hello,

When I was doing simulation of a scintillator in Geant4V11.1.1, I found some contradiction bewteen the BOOK and the CODE.

In Scintillation/configuration section (https://geant4-userdoc.web.cern.ch/UsersGuides/ForApplicationDeveloper/html/TrackingAndPhysics/physicsProcess.html#id1), the BOOK says that:
"These parameters are available to configure the scintillation process. 
...
Multiply the yield by a constant factor. Used when more than one scintillation process is defined in the user’s physics list.
C++ statement: G4OpticalParameters::Instance()->SetScintYieldFactor(G4double val)
...
Set the ratio of emitted photons of the fast and slow decay components. Used when more than one scintillation process is defined in the user’s physics list.
C++ statement: G4OpticalParameters::Instance()->SetScintExcitationRatio(G4double val)".

But after adding these two parameters into my main.cc, there is an error says:"class G4OpticalParameters has no member named 'SetScintYieldFactor' and 'SetScintExcitationRatio'". I also checked 'G4OpticalParameters.hh' and the newest Geant4 class reference, and didn't find the two members above.

That's all. Besh wishes!