|Message: Re: G4NDL3.13 cross section data||Not Logged In (login)|
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> Hi > > > 1) The Inelastic attenuation coefficient of neutron will increase with > > larger energy(>1MeV and <25MeV), but the Fig1(cross section changing > > trend with neutron energy) is not like so, whose data come from > > G4.9.3p01 > > Sorry I am not sure what you mean. What kind of shape do you expect in > the plot? > > Origin of Gd data is written in README.v3.13 > source: Gd-152 from ENDF/B-VI Release 8 Tape162 > source: Gd-154 from ENDF/B-VI Release 8 Tape162 > source: Gd-156 (neutron) from ENDF/B-VI Tape 106 > source: Gd-157 (neutron) from ENDF/B-VI Tape 106 > source: Gd-158 (neutron) from ENDF/B-VI Tape 106 > source: Gd-160 (neutron) from ENDF/B-VI Tape 106 >
Thanks for your quick answer. And sorry that I didn't describe clearly. What I mean is the trend of the line should be up and up, but trends of cross section of the isotopes of Gd_156 come down with larger neutron energy(>12MeV). Is it a bug for G4data?
> > 2) Fig3 is totally different from fig2. Is it means that cross section > > data of for neutron G4.9.3p01 is the lasted one, while Data were changed > > during 2007~2010? > > Sorry again, I cannot see the "totally different" result in the figures. > Could you give me more specific part of the figure, where you felt > "totally different". > > Tatsumi >
Fig3 and Fig2 have the same trends but the altitude is not the same. In Fig2 the Gd_152 is the largest one, but in Fig3, Gd_152 cross section value is lower than Gd_155. that's really different from Fig2, isn't it? Because the Fig2 is from talk on 2006, I guess that the data were changed from 2007 till now, right?
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