Yields and Asymmetry versus Energy Cuts.

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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.

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

That I can not explain at present time. Maybe there are some physics or maybe that is just simple statistical fluctuation. Need more investigation.

The peak is probably due to the energy neutron spectrum

The peak is probably due to the energy neutron spectrum

Summary table of yields and asymmetry versus energy cuts

Because cnts0 becomes really small quantity we need to analyze errors

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

• 10 M events is about 1 Gb file.
• Say I want 100 times more statistics. I will need about 100 Gb free space