Difference between revisions of "Yields and Asymmetry versus Energy Cuts."

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==Because '''cnts0''' becomes really small quantity we need to analyze errors==
 
==Because '''cnts0''' becomes really small quantity we need to analyze errors==
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[[File:2n energy correlations error vs cuts more.png | 800px]]
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To do more investigation we need more statistics. But that is problematically at present moment due to the lack of hard disk space:
 +
*10M events is about 1G files
 +
*1000M events is about 100G files

Revision as of 22:13, 15 June 2011

go back


Follow are some Monte Carlo simulations of 2n correlations. One neutron are from one FF, two neutrons per fission. No accidental neutron was considered, all neutrons are correlated. Total 10M events was simulated. Every neutron was sampled up to 10 MeV. The polarization of gammas are zero.


2n Asymmetry versus Energy Cut

It was been shown by Dr Dale that Asymmetry of 2n correlations (anti-parallel/parallel) is the strong function of energy cuts and increases as energy cut increases.

2n energy correlations vs cuts.png

Let's see what happens if we increase the energy cuts

2n energy correlations vs cuts more.png


2n yields vs cuts more.png


2n counts vs cuts more.png

Summary table of yields and asymmetry versus energy cuts

Table 2n energy cut yields p01.png

Table 2n energy cut yields p02.png

Because cnts0 becomes really small quantity we need to analyze errors

2n energy correlations error vs cuts more.png

To do more investigation we need more statistics. But that is problematically at present moment due to the lack of hard disk space:

  • 10M events is about 1G files
  • 1000M events is about 100G files