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Question Re: wrong gamma energies from neutron capture on 56Fe 

Forum: Hadronic Processes
Re: Question wrong gamma energies from neutron capture on 56Fe (Victor_Makarov)
Date: 30 Nov, 2009
From: Victor_Makarov <Victor_Makarov>

I examined file z26.a57 in PhotonEvaporation2.0 folder of DATA and came to conclusion that it does not fully match the original ENSDF data for 57Fe.

Here's the part of original ENSDF file:
 6018.42 7		(7646.20)		 9.9 8		
 x6102.1 10		 0.05 2		
 x6129.3 4		 0.12 3		
 x6219.4 13		 0.08 3		
 x6276.4 4		 0.12b 4		
 6380.47 15		(7646.20)		 1.11 12		
 x6548.5 8		 0.16b 4		
 x6717.4 2		 0.45b 4		
 x6742 2		 0.12 6		
 x7199 2		 0.10 4		
 7278.82 9		(7646.20)		 6.0 6		
 7631.18c 10		(7646.20)		29 4		
 7645.58c 10		(7646.20)		25 3		

The left column is for gamma energies, the right is for intensity. For 7.631 MeV, 7.645 MeV and for 6.38 MeV we have 29.4, 25.3, and 1.11 intensity.

This is the part of z26.a57 in PhotonEvaporation2.0:

7.646700e+03 6.381800e+03 3.500e+01 -1 0.00e+00 0.50 7.330e-06 9.004e-01 8.336e-02 1.161e-04 3.602e-04 1.214e-02 1.623e-05 5.034e-05 9.659e-10 0.000e+00 4.065e-03

7.646700e+03 7.631700e+03 1.000e+02 -1 0.00e+00 0.50 5.770e-06 9.012e-01 8.336e-02 1.036e-04 3.640e-04 1.217e-02 1.449e-05 5.061e-05 8.562e-10 0.000e+00 4.073e-03

7.646700e+03 7.645500e+03 4.100e+01 -1 0.00e+00 0.50 5.760e-06 8.993e-01 8.333e-02 1.035e-04 3.628e-04 1.215e-02 1.448e-05 5.069e-05 8.542e-10 0.000e+00 4.080e-03

Here, if I understand right, we have for 7.631 MeV, 7.645 MeV and for 6.38 MeV relative percentage intensity for gamma-level 7.6467MeV - 100%, 41%, 35%. The same relative intensities I get in my simulations. So, does the file z26.a57 contain wrong data or do I get something wrong?

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