[Gate-users] optical photons passing through the surface

[Vesna Cuplov]

Dear Han,

Did you have a look at the wiki page for Generating and Tracking optical
photons?
Your can find your answers in the section about defining a surface:

http://wiki.opengatecollaboration.org/index.php/Users_Guide_V6.2:Generating_and_tracking_optical_photons#Defining_surfaces

Your surface properties should be defined in Surface.xml and the surface
itself is described in your simulation macro:

/gate/*Volume2*/surfaces/name   Surface-From-Volume1-To-Volume2
/gate/*Volume2*/surfaces/insert *Volume1*


vesna



On Thu, Apr 10, 2014 at 8:51 AM, dme627b at gmail.com <dme627b at gmail.com>wrote:

>  Hi Gaters,
>
> I want to simulate optical photons transmitting from one volume to
> another, and the surface between the two volumes can be polished or rough.
> So I need to specify the surface in Surfaces.xml. My question is: what are
> the type and finish in Surfaces.xml?  How can I specify the surface
> roughness?
>
> I used the following definition but failed
>
>
>
>   <surface name="rough" type="dielectric_dielectric" sigmaalpha="6.0"
> finish="ground">
>
>     <propertiestable>
>
>       <propertyvector name="SPECULARLOBECONSTANT" energyunit="eV">
>
>     <ve energy="1.84" value="1"/>
>
>     <ve energy="4.08" value="1"/>
>
>       </propertyvector>
>
>       <propertyvector name="SPECULARSPIKECONSTANT" energyunit="eV">
>
>     <ve energy="1.84" value="0"/>
>
>     <ve energy="4.08" value="0"/>
>
>       </propertyvector>
>
>       <propertyvector name="BACKSCATTERCONSTANT" energyunit="eV">
>
>     <ve energy="1.84" value="0"/>
>
>     <ve energy="4.08" value="0"/>
>
>       </propertyvector>
>
>     </propertiestable>
>
>   </surface>
>
> Any help is appreciated,
>
> Han
>
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