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Question Help with PhotonEvaporation and RadioactiveDecay packages? 

Forum: Hadronic Processes
Date: 14 Jun, 2012
From: Alexis Schubert <Alexis Schubert>

Hi,

I see incorrect gamma branching ratios in the decay of 133-Ba.  The ratios are
incorrect by up to 9% for some gammas.  Here are the intensities from Geant4 
simulation, compared to literature values:

E_lit  |  I_lit       |  I_sim       | (I_sim - I_lit) / I_lit
53.16  |  2.14  0.03 |  2.08  0.01 | -2.8  1.6
79.61  |  2.65  0.05 |  2.41  0.02 | -9.0  1.8
81.00  | 32.95  0.33 | 33.30  0.06 |  1.1  1.0
160.61 |  0.64  0.01 |  0.62  0.01 | -2.8  1.5
223.24 |  0.45  0.00 |  0.44  0.01 | -3.3  1.6
276.40 |  7.16  0.05 |  6.83  0.03 | -4.6  0.7
302.85 | 18.34  0.06 | 18.00  0.04 | -1.8  0.4
356.01 | 62.05  0.19 | 59.80  0.08 | -3.6  0.3
383.85 |  8.94  0.06 |  8.78  0.03 | -1.8  0.8

where:
E_lit = gamma energy from literature
I_lit = gamma intensity from literature
I_sim = gamma intensity from Geant4

The literature values above are from ENSDF and the Nuclear Data Sheets for 
A=133, which was published in 2011. I'm using Geant4.9.3.p01, with the 
PhotonEvaporation2.0 and RadioactiveDecay3.2 data files.  I think the 
discrepancies are due to slightly incorrect values in the data files -- maybe 
the G4 data files are based on old ENSDF data?  There don't seem to be any 
updates to the newer PhotonEvaporation and RadioactiveDecay files for 133-Ba, 
though. Is there any way to determine which ENSDF versions were used to 
generate data files in the PhotonEvaporation and RadioactiveDecay packages?  

I am worried about 133-Ba and also other isotopes. Is there a simple way to 
generate new G4 data files from the ENSDF database?  Or to determine which G4 
data files might be out of date?

Thanks for any advice!
Alexis

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1 Question: Re: Help with PhotonEvaporation and RadioactiveDecay packages?   (Alexander Chemey - 29 Jul, 2014)
(_ None: Re: Help with PhotonEvaporation and RadioactiveDecay packages?   (Alexis Schubert - 29 Jul, 2014)
(_ Question: Re: Help with PhotonEvaporation and RadioactiveDecay packages?   (Alexander Chemey - 29 Jul, 2014)
(_ None: Re: Help with PhotonEvaporation and RadioactiveDecay packages?   (Alexis Schubert - 29 Jul, 2014)
(_ None: Re: Help with PhotonEvaporation and RadioactiveDecay packages?   (Alexander Chemey - 29 Jul, 2014)
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