Dear experts,
I want to enlarge neutron statistics on the right side
of the target with the same number of beams:
lead box in moderator ... and 3 counters on the right side
For this I use biasing : divide moderator into 2 parts : left and right
I use W= 2 to the right side
= 1/2 for the left side in moderator
Then I compare results before biasing and after that.
Results :
() Total number of low energy neutron interactions: 6025716
with biasing
... it was 3525982
no biasing
() CPU - approximately the same
() N neutrons in the counters is less with biasing !?
example with counter-3 (C3) :
1.5200707E-02 +/- 2.631857 % (no biasing)
1.3233015E-02 +/- 9.833910 % with biasing
------------------------
so, I think that these are strange results
May be I have errors somewhere ?
thank you
Vladimir
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Received on Mon Jul 29 2019 - 09:21:21 CEST