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Keywords: TestEm7 absorbed dose
Forum: Medical Applications
Re: Sad the calculation of absorbed dose through TestEm7 (Shahrokh)
Re: None Re: the calculation of absorbed dose through TestEm7 (michel maire)
Re: Question Re: Other questions through TestEm7 (Shahrokh)
Date: 20 Aug, 2004
From: michel maire <michel maire>

User Shahrokh wrote:

>> Thanks a lot for leading me. I did your suggestion and I runned 
>> successfully the code. Now, I have other questions. 
>> 1- If you runned the code with n_particle=10000 at 
>> file and the command /run/beamOn 1 at 
>> run.mac file, the absorbed dose in all tallies would be  equal to zero!?
>> Then, if you run again the code with n_particle=1 and 
>> the command /run/beamOn 10000, the absorbed dose in all tallies will 
>> take correctly values. Why??? 

   I runned your program dose in both conditions and got the same behaviour:
   the tally are filled correctly.
   (for the computation of the ratio, be care of EbeamCumul)
>> 2- How can I restrict the momentum of primary particles within 
>> a solid angle about x-axis or a cone? 
>> In other words, how can I restrict the emission of primary particles 
>> into a diverging channel in similar to a collimator?

   See example in TestEm4.
   In fact I see that you already did in your PrimaryGeneratorAction.
>> 3- I don't know how I define photons or electrons that 
>> their energy spectrum follows specific distribution 
>> (for example Gaussian distribution).

   It is similar to the position and direction.
   You will find examples in advanced examples (I do not remember exactly which one).
>> 4- How can I provide or define a mathematical phantom of human?

   I have no competence in this field.

>> 5- How can I take the ratio of absorbed dose in each tally divided by 
>> the absorbed dose in a specific tally?

   If I understand well your question, it is enough in EndOfRun to normalise
   tallyEdep, i.e.

>> Sincerely yours,
>> Shahrokh.

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3 Question: Re: Other questions through TestEm7   (Shahrokh - 29 Aug, 2004)
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