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Forum: Processes Involving Optical Photons
Re: Question nonproportionality of scintillation light yield (Martin Goettlich)
Date: 01 Jun, 2011
From: Gumplinger Peter <Gumplinger Peter>

Dear Martin,

Since Geant4.9.4 it is possible (from the Application Developers Guide):

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:


      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:



      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.

This is in terms of energy deposit (by a secondary charge particle) not the energy of the incident photon (gamma or x-ray).

Best regards, Peter

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1 None: Re: nonproportionality of scintillation light yield   (Martin Goettlich - 08 Jun, 2011)
(_ Feedback: Re: nonproportionality of scintillation light yield   (Gumplinger Peter - 08 Jun, 2011)
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