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

For a one dimensional slab of thickness a
l = 2 a
For a one dimensional sphere of radius a
l = 4 a / 3
For a one dimensional cylinder of radius a
l = 2 a
For a hollow cylinder of inner radius a and outer radius b
l = 2 b ( 1 - ( a / b ) 2 )
For more complicated geometry which contains several absorber lumps in a unit
cell, enter the mean chord length of a dominant absorber, for example, to BWR
lattice that of a pin rod.
6 DC C ; the Dancoff correction factor (cf. Sec.1.6)
(effective only if IC3=0 in Block-3 of Sect.2.2 is specified)
If DC 0 and DC ≥ 0 NISO times /A8, 2, 1/
1 IDENT Nuclide identification expressed by eight characters composed by seven tags
‘X-zz-m-c-b-i-t’. e.g. XH01H001 (H-1 in H 2 O)
X-tag
Tag used internally to specify physical quantities, consequently any character is
accepted in the input. Usually ‘X’ is entered.
zz-tag
Element symbol of the nuclide (cf. Sect.8.1)
Enter ‘PU’ for plutonium. For a nuclide denoted by one character such as H for
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