Optimization of a novel Cerenkov detector for radiotherapy applications using GEANT4 and FLUKA Abstract: was included in both GEANT4 and FLUKA. mirror was simulated as a spike reflector with a reflectivity fixed to 95 and the CMOS active surface was set as dielectricmetal interface with an efficiency of 0. 85. Optical Photon Processes in GEANT4 Peter Gumplinger, TRIUMFGEANT4 G4 Short Course at Bordeaux, November 2005 enum G4OpticalSurfaceType dielectricmetal, Set the surface finish: enum polished, smooth perfectly polished surface Optical Photon Processes in GEANT4 Peter Gumplinger, TRIUMFGEANT4 Users Workshop at SLAC, February 2002 Abstract GEANT4 can realistically model the optics of scintillation and dielectricmetal, Set the surface finish: enum With the latest versions of Geant4 you can now specify a complex index of reflection for dielectricmetal surfaces but otherwise there is no difference.
I'm clear about the backpainted finish being for cases where there is a small I've, for the first time, been adding optical surfaces into a Geant4 application, and I'm trying to understand which surface finish (ground, polished etc) to apply to different situations, how these affect the optical processes that can take place, and how the glisur and unified models deal with the finish. The dielectricmetal interface A full description of the tracking of optical photons is available in the Geant4 Physics Reference Manual and the Geant4 Guide for Applications Developers.
TOPAS allows to include optical physics by means of the g4optical module in the physics list. dielectricmetal. string: Finish: polished: Physics III Low Energy Processes Geant4 includes processes at low energy scales to ensure complete coverage of interactions with materials: dielectricdielectric dielectricmetal Andreas Schlicke (DESY) Geant4 Tutorial 2010 Optical Physics Andreas Schlicke (DESY, Zeuthen) material adpted from P. Gumplinger G. Santin 1 Donnerstag, 18. The GLISUR model was developed in GEANT3.
geom) file. and the UNIFIED model a newer model for handling optical boundary processes at either a dielectricmetal or dielectricdielectric boundary. GEANT4GAMOS has the inherent capability of modeling much more complex reflection processes. What is the dielectric constant for metal? Update Cancel. ad by Zoho. Automate your business with Zoho One. What is the dielectric constant for a conductor? Is there any metallic conductor with a finite value of dielectric constant?
Why is the dielectric constant for metals infinity? See above. Dielectric Constant. Material Characteristics. Metal's dielectric constant depends on external electromagnetic field.
For a low The Geant4 option 3 physics list (Geant4 Physics Reference Manual), which has been designed for highprecision simulations in e.
g. medical applications, is now available in GATE. The influence of different cut values has been reported upon for not only macrodosimetry using carbon ions (Zahra et al 2010 ) and protons (Grevillot et al 2010a Optical simulation of monolithic scintillator detectors using GATEGEANT4 The interface between a dielectric material and a metal is treated somewhat differently Geant4 2004 Geant4 Physics The interface between a dielectric material and a metal is treated somewhat differently (Geant4 2004) from the dielectricdielectric interface discussed above.
As the refractive index is not defined for metals, the probability of reflection has to be specified. Geant4 2004 Geant4 Physics Reference Manual Version: Geant4 7. 0 (December 2004