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

15 MS Cross-section mixing table length
= 0 (suppressed)
16 MCR Number of cross-section sets to be read from cards in the original format
= 0 (suppressed)
17 MTP Number of cross-section sets to be read from tape
= 0 (internally set)
18 MT Total number of cross-section sets
= 0 (internally set)
19 IDFM Control for density factors
= 0 (suppressed)
20 IPVT Indicator of the parametric eigenvalue PV entered in Block-16* for the search
options (IEVT>1).
This term is effective when IEVT=2, because other search options are suppressed
in the SRAC. Enter 0 when IEVT=0 or 1, otherwise(IEVT=2) enter =1.
= 0 PV is not effective: ANISN will search for the parameter to make k eff =1.0
with α =0.0. (suppressed)
= 1 PV as k 0 : ANISN will search for the parameter to make k eff = k 0 .
Usually, PV= k 0 =1.0 for α search.
= 2 PV as α 0 : ANISN will search for the parameter to make k eff =1.0 when α
=α 0. (suppressed)
21 IQM Indicator of distributed source
= 0 No distributed source in eigenvalue problem.
= 1 Distributed source formed in the SRAC.
The energy spectrum of U-235 fission spectrum with spatially flat source
on the zone which has non-zero fission cross-sections are given.
= 2 Isotropic distributed source read from Block-17* in execution step of
ANISN.
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