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Forum: Processes Involving Optical Photons
Re: Question count the number of optic photons (Le Ba Manh Hung)
Re: Disagree Re: count the number of optic photons (Gumplinger Peter)
Re: Question Re: count the number of optic photons (Le Ba Manh Hung)
Re: Feedback Re: count the number of optic photons (Gumplinger Peter)
Re: Question Re: count the number of optic photons (Le Ba Manh Hung)
Date: 21 Mar, 2011
From: Gumplinger Peter <Gumplinger Peter>

I don't know what you mean by G4manual-Book but the online Application Developers Manual has the following paragraph (this capability is new to 9.4 (2011) - we are working on an example to show this new feature):

When there are multiple scintillators in the simulation and/or when the scintillation yield is a non-linear function of the energy deposited, the user can also define an array of total scintillation light yields as a function of the energy deposited and particle type. The available particles are protons, electrons, deuterons, tritons, alphas, and carbon ions. These are the particles known to significantly effect the scintillation light yield, of for example, BC501A (NE213/EJ301) liquid organic scintillator and BC420 plastic scintillator as function of energy deposited.

The method works as follows:

   1.

      In the user's physics lists, the user must set a G4bool flag that allows 
scintillation light emission to depend on the energy deposited by particle type:

          theScintProcess->SetScintillationByParticleType(true);

   2.

      The user must also specify and add, via the AddProperty method of the MPT,
 the scintillation light yield as function of incident particle energy with new 
 keywords, for example: PROTONSCINTILLATIONYIELD etc. and pairs of protonEnergy 
 and scintLightYield. 

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