[neutron-mc] Statistical Errors question:
Aaron M. Percival
percival at physics.queensu.ca
Tue Jun 3 03:56:11 CEST 2008
Hi all,
In section 4.2.1 of the McStas user manual makes the following statement:
"...we observe a large number of neutrons, N >= 10. Then N almost follows a
> normal distribution with the uncertainty sigma(N) = sqrt(N')."
>
Here N is the number of neutron counts in a particular bin of a monitor.
I was wondering why mathematically this is true. Is it an application of
the Central Limit Theorem?
Any insight is appreciated,
Aaron
*************************************************
Aaron M. Percival
M.Sc. Candidate
Dept. of Physics, Engineering Physics & Astronomy
Queen's University
Kingston, Ontario, Canada, K7L 3N6
Office: 613-533-6000 ext. 74789
Fax: 613-533-6463
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