Date: Fri, 22 Apr 2016 01:48:29 +0000
Dear Vasilis,
I increased the number of events from 1e4 to 2e5 and reran for 10 cycles instead of 3 as I did last time. I also had to reduce the radius of the sphere from 60 to 30 cm, otherwise it takes ridiculous time to run.
The result is indeed more conclusive:
[cid:aacc785e-f2a7-4b5a-8998-b04c3a6c7ca6]
but I do not understand it. Why the profile is concave down?
I want to see an attenuation profile where the dose DECREASE with depth.
Is the sphere is too small or should I increase accuracy some more or, perhaps, this result is actually what I should expect?
thank you,
Roman
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