[fluka-discuss]: Max and Min Limit of FLUKA result

From: P K SAHANI <pksfluka_at_gmail.com>
Date: Fri, 27 Sep 2013 09:42:54 +0530

Dear FLUKA users,
    I want to know the maximum and minimum limit of FLUKA results.
Sometimes straight after 1E-18 its shows the result 0.0, is it the
minimum value that FLUKA can score.
    Even I want to know does this max and min value depends on type of
scoring, geometry used or any other parameters?

My next query is about FLUKA Monte Carlo, The statistical error shown by
FLUKA is the standard deviation calculated from the data point observed in
each run. Suppose I have 10 runs, then I will generate 10 data, Result is
the average of these 10 data and error is the std. dev. of these 10 data.
As per Central limit theorem, these 10 data generated by 10 runs
(i.e,10samples of size say 10^6 particles/histories) from the actual
sample space or main population is also having the same average value. So
the average value observed in FLUKA result does represent the expected
result of mean population (i.e the problem modelled). So If I want to
reduce the error, I have to increase sample size say from 10^6 to 10^8 to
reduce the error by a factor of 10. This is my understanding about FLUKA
Monte Carlo result error. Is it correct? please guide me.

Thank you.


Regards
Prasanta
Received on Fri Sep 27 2013 - 07:00:58 CEST