Find specific reaction cross section in an ENDF file

AI Thread Summary
The discussion focuses on locating the specific reaction cross section for the 18O(p,n)18F reaction within the ENDF file format of TENDL. The user notes discrepancies between the cross section values found in the provided TENDL links and those in the ENDF file. They express confusion regarding the differences in the cross section data for the residual product and seek clarification on this issue. The user provides multiple links to data sources and images to illustrate their findings. The inquiry highlights the need for guidance on reconciling the variations in cross section values.
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I'm trying to find specific reaction cross section 18O(p,n)18F
in proton + O-18 TENDL (ENDF format).

# p + 18O : (p,n) Total
# Q-value =-2.51902E+00
# E-threshold= 3.64964E+00
# # energies = 45
# E xs
1.000E+00 0.00000E+00
2.000E+00 0.00000E+00
3.000E+00 7.05780E+01
4.000E+00 1.83053E+02
5.000E+00 2.56205E+02
6.000E+00 2.81193E+02
7.000E+00 3.05196E+02
8.000E+00 3.10529E+02
9.000E+00 2.62915E+02
1.000E+01 1.82168E+02

It's provided in the link of 18O(p,n)
ftp://ftp.nrg.eu/pub/www/talys/tendl2013/proton_file/O/018/xs/xs100000.tot
However, I can not find correspond value in ENDF file.
ftp://ftp.nrg.eu/pub/www/talys/tendl2013/proton_file/O/018/lib/endf/O018-p.tendl
https://www.dropbox.com/s/07m9shznsx1jco6/9018.JPG


https://www.dropbox.com/s/07m9shznsx1jco6/9018.JPG
Please advise me.
 
Last edited:
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Please let me rephrase my the question.
I'm looking for the cross section of 18O(p,n)18F in the ENDF file of TENDL provided in the link:
p + 18O : (p,n) ftp://ftp.nrg.eu/pub/www/talys/tendl2013/proton_file/O/018/xs/xs100000.tot
18O(p,x)18F : Production of 18F ftp://ftp.nrg.eu/pub/www/talys/tendl2013/proton_file/O/018/residual/rp009018.tot
Which are the same as expected.

However,the cross section of residual product 9.018000+3 the ENDF file is different as the links above
ftp://ftp.nrg.eu/pub/www/talys/tendl2013/proton_file/O/018/lib/endf/O018-p.tendl
https://www.dropbox.com/s/07m9shznsx1jco6/9018.JPG

I'm very confused about the difference.
Please advise me.
Thanks in advance

Lee

  p+18O : (p,n) 9.018000+3 tendl ENDF
E(MeV) xs  
1 0.00000E+00 0.000000+0
2 0.00000E+00 0.000000+0
3 7.05780E+01 2.122838-1
4 1.83053E+02 3.758248-1
5 2.56205E+02 4.250742-1
6 2.81193E+02 4.218380-1
7 3.05196E+02 4.307818-1
8 3.10529E+02 4.175966-1
9 2.62915E+02 3.399558-1
10 1.82168E+02 2.289246-1
11 1.37536E+02 1.708513-1
12 1.03401E+02 1.282725-1
13 8.15315E+01 1.017085-1
14 6.03028E+01 7.595463-2
15 4.71970E+01 6.012981-2
16 3.71000E+01 4.783334-2
17 3.04388E+01 3.969633-2
18 2.42685E+01 3.202279-2
19 1.91105E+01 2.550941-2
20 1.57749E+01 2.130231-2
 
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