The NJOY Nuclear Data Processing System, Volume 1:User's Manual

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INPUT MATERIALS IN ASCENDING OROER
GAMMA GROUP STRUCTURE OPTION
WEIGHT FUNCTION OPTION
LEGENORE OROER
PRINT OPTION (0/I=MINIMUM/MAxIMuM) (OEFAULT=l)
RUN LABEL UP To 80 characters (OELIMITEO i3y *,
ENOEO WITH /)
(IGG=I ONLY)
NUMBER OF GROUPS
NGG+l GROUP BOUNOS (EV)
(IWT=l ONLY)
WEIGHT FUNCTION AS TAB1 RECORO
FILE TO BE PROCESSED
SECTION TO BE PROCESSEO
DESCRIPTION OF SECTION TO BE PROCESSEO
REPEAT FOR ALL REACTIONS OESIRED
MFO=O/ TERMINATES THIS MATERIAL
MFO=-1/ IS A FLAG TO PROCESS ALL SECTIONS PRESENT
FOR THIS MATERIAL (TERMINATION IS AUTOMATIC)’
NEXT MAT NUMBER TO BE PROCESSEO
TERMINATE GAMINR RUN WITH MATO=O.
FOR
INPUT VARIABLES ---------------- ------------------*
MEANING
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NONE
ARBITRARY STRUCTURE (REAO IN)
CSEWG 94 GROUP STRUCTURE
LASL 12 GROUP STRUCTURE
STEINER 21-GROUP GAMMA-RAY STRUCTURE
STRAKER 22 GROUP STRUCTURE
LASL 48-GROUP STRUCTURE
LASL 24-GROUP STRUCTURE
MEANING
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READ IN
CONSTANT
l/E + ROLLOFFS
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PROGRAM ERRORR
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PRODUCE CROSS SECTION COVARIANCES FROM ERROR FILES IN ENOF/B *
FORMAT
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FIRST. THE UNION ENERGY GRIO OF THE USERS GROUP STRUCTURE *
ANO THE ENOF COVARIANCE ENERGIES IS OETERMINEO. THE ARRAY
OF COEFFICIENTS FOR DERIVEO CROSS SECTIONS IS ALSO CONSTRUCTED.~
THEN MULTIGROUP CROSS SECTIONS ARE COMPUTED ON THE UNION *
GRIO (SEE GRPAV), OR THEY ARE REAO FROM A MULTIGROUP CROSS *
SECTION LIBRARY ANO THEN COLLAPSEO TO THE UNION GRIO. THE *
METHODS OF GROUPR ARE USEO FOR CROSS SECTION AVERAGING. ENOF *
COVARIANCES ANO THE GROUP CROSS SECTIONS ARE THEN COMBINEO *
TO GET THE BASIC COVARIANCE MATRICES (SEE COVCAL). FINALLY, *
THE BASIC MATRICES ARE COMBINEO TO GET COVARIANCES FOR *
DERIVED REACTIONS, THE MATRICES ARE COLLAPSEO TO THE USER-S *
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1.