|Message: TestEm7 example and Bins||Not Logged In (login)|
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Hi all. Noob questions follow:
Iíve considering using the Geant example Test Em7 as the basis for a model. Iím examining the distal side of the Bragg peak and need the peak in considerable detail.
I have managed to modify some aspects of the code in TestEm7 (energy etc) as well as getting it to save in CSV format (I have developed a algorithm to extract data in matlab and I intend to generate the BP in Geant and analyse it using matlab. CSV format seem the most elegant way of moving the data).
I have also found the following commands which seems to allow me to set the number of bins and save that data:
/analysis/h1/set 1 100 1 15 MeV
However on examining the CSV file the number of bins saved in the CSV file does not reflect the number of bins set in the command. How can I set the number of bins to, say, 1000 to return the peak, particularly the distal side in more detail?
Second question: Iíve tried changing the beam from monoenergetic to having a Gaussian spread using the command:
/gps/ene/min 2. MeV
/gps/ene/max 10. MeV
But TestEm7 returned ďcommand not foundĒ. Any hints on how to do this?
Third question: does the Geant model for protons include range straggling? If so which model? Landau? Gaussian?