JAEA-Data/Code 2007-004 - Welcome to Research Group for ...

hydrogen, add character ‘0’ to complete the tag as ’H0’.
m-tag
The last digit of the mass number is used to discriminate the isotopes as ‘9’ for
Pu-239. ‘N’ is used to specify the element with natural abundance like ‘FEN’ for
natural iron. A few exceptional cases occur when the excited states of some fission
produced isotopes exist as PM-148-G and PM-148-M, and when there exist
isotopes with the same last digit of the mass number like Sn-116 and Sn-126,
where the special characters are used. Such special treatments and elements are
listed in Sect.8.1
c-tag
Chemical compound status tag to select the proper thermal scattering law (cf.
Sect.8.1). Use ‘0’ for nuclide to treat with free gas model.
e.g. H01H for H in H 2 O
When the effective microscopic cross-sections are written into MICREF file, this
tag in the member name is internally set to ‘F’ or ‘T’ to select ‘fast’ or ‘thermal’
energy range.
b-tag
Enter ‘0’ in usual input.
This tag is used internally for burn-up step indicator.
When the effective microscopic cross-sections are written into MICREF file while
burn-up calculation is not carried, the sixth character of input data is used to this
tag. To specify the data in MICREF file with IRES=1,enter the sixth character of
the mixture name with which these effective cross-sections are associated.
i-tag
Enter ‘0’ in usual input.
This tag is internally used to identify the material to which the effective
microscopic cross-sections are associated.
To specify the effective microscopic cross-sections in MICREF file by setting 1
for the next item IRES, enter the seventh character of the mixture name to which
the effective microscopic cross-sections are formed.
t-tag
Temperature indicator (obsolete), any character is accepted.
This tag was used in the old version to specify the temperature on which data
were tabulated. While this entry is ineffective as the interpolation is established,
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