ENDF80SaB2 Thermal Scattering Data (S(α,β))

Released: 2018-07-26

The thermal scattering library based on ENDF/B-VIII.0 contains 34 materials. The material identifiers (for use on the MTn card in MCNP) are given in the table below. For those that have a room temperature evaluation, that data table has extension 40t. The full documentation for the ENDF80SaB2 library can be found in the docs directory after decompressing the download.

Identifier
al-27	aluminum-27 metal
be-beo	beryllium in beryllium-oxide
be-met	beryllium metal
benz	benzene
c-sic	carbon in silicon carbide
d-d2o	deuterium in heavy water
fe-56	iron-56 metal
grph10	10% porous graphite
grph30	30% porous graphite
grph	crystalline graphite
h-h2o	hydrogen in light water
h-ice	hydrogen in solid light water (ice)
h-luci	hydrogen in Lucite
h-poly	hydrogen in polyethylene
h-yh2	hydrogen in yttrium-hydride
h-zrh	hydrogen in zirconium-hydride
lmeth	hydrogen in liquid methane
n-un	nitrogen in uranium-nitride
o-beo	oxygen in beryllium-oxide
o-d2o	oxygen in heavy water
o-ice	oxygen in solid light water (ice)
orthoD	liquid ortho-deuterium
orthoH	liquid ortho-hydrogen
o-uo2	oxygen in uranium-dioxide
paraD	liquid para-deuterium
paraH	liquid para-hydrogen
sio2	silicon-dioxide
si-sic	silicon in silicon-carbide
smeth	hydrogen in solid methane
u-un	uranium in uranium-nitride
u-uo2	uranium in uranium-dioxide
y-yh2	yttrium in yttrium-hydride
zr-zrh	zirconium in zirconium-hydride

There was a typo in the header of the o-d2o files of this library from July to October 2020; The typos were fixed in late October 2020. If you downloaded the files in that time frame, we recommend that you download the library again and replace toe o-d2o files with the newly downloaded ones.

Alternatively, you can manually edit the files yourself. The ZAID is the very first string on the very first line of each file. In the ENDF80SaB2 directory

• Change file o-d2o.40t from ZAID o-d2o.80t to o-d2o.40t
• Change file o-d2o.41t from ZAID o-d2o.81t to o-d2o.41t
• Change file o-d2o.42t from ZAID o-d2o.82t to o-d2o.42t
• Change file o-d2o.43t from ZAID o-d2o.83t to o-d2o.43t
• Change file o-d2o.44t from ZAID o-d2o.84t to o-d2o.44t
• Change file o-d2o.45t from ZAID o-d2o.85t to o-d2o.45t
• Change file o-d2o.46t from ZAID o-d2o.86t to o-d2o.46t
• Change file o-d2o.47t from ZAID o-d2o.87t to o-d2o.47t
• Change file o-d2o.48t from ZAID o-d2o.88t to o-d2o.48t

Updated Thermal Scattering Library

The Nuclear Data Team originally released a thermal scattering library based on ENDF/B-VIII.0 in Spring of 2018. We received a few comments that some things were not processed correctly. We have spent a lot of time identifying the issues and have released an updated and fixed library. The library that is now available for download is the updated library. For more information regarding the updated please see the documentation available as part of the download or see the technical report LA-UR-20-24456 for the documentation by itself.

Documentation

• "Re-Release of the ENDF/B VIII.0 S(α,β) Data Processed by NJOY2016," Parsons, D.K., Toccoli, C.A., (2020), LA-UR-20-24456