[Gate-users] Total Activity / voxels / and source activity impact on Voxel Source

[Khalid Hussain]

Dear Gate Users,

I am using a voxel source and have defined the activity of each voxel in
the activity.dat file.
Here I have a question about the total number of particles. If I look at
the stat file, activity file, and source files, and cannot be sure how the
activity is working on and being calculated.
My voxel image has dimensions of 220x220x132 with 0.5mm^3 voxel size and
the total number of voxels is 6388800 and the volume is 411.601cm^3 and I
want to assign 80nCi/cm^3 activity to my voxel source. Mathematically the
total activity which should I give to the voxelized source is 32.928133 mCi
but I need your guidance on how can I assign this activity to my voxelized
source.

I checked by changing the source activity probably not influencing the
total number of particles.

Please advise

[image: image.png]
[image: image.png]

[image: image.png]


Regards

*KHALID HUSSAIN *| *PhD Scholar*
*Universiti Putra Malaysia (UPM), Malaysia*
Email:hussain.khalid at student.upm.edu.my
Cell: *+60-11-6455-2354*
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