Line

Column (format)

1

1-11 (²11)

Selection criteria (0=MAT, 1=ZA)  (DEFault = 0).

12-22 (I11)

Monitor mode selector:
= 0 – Normal operation (DEF).
= 1 – Monitor progress of Doppler broadening of data.

23-33 (E11.4)

Kelvin temperature (0.0 K - DEF).

34-44 (E11.4)

Minimum cross section of interest (barns).
0.0 or less - the program will use 1.0e-10 barn  (DEF).

45-55 (²11)

Negative cross section treatment
= 0 – O.K. – No change  (DEF).
= 1 – Set = 0.

56-66 (²11)

Unresolved resonance region treatment
= 0 – Copy (no broadening) (DEF).
= 1 – Ignore (broaden).

2

1-60 (À60)

ENDF/B input data filename  (DEF option ENDFB.IN)

3

1-60 (À60)

ENDF/B output data filename  (DEF option ENDFB.OUT )

4-N

1 -11 (²11)

Minimum
MAT or ZA
(see 1-11, line 1)

Up to 100 MAT or ZA ranges may be specified, one range per line.
The list is terminated by a BLANK line.

If the the UPPER limit of any request is less than the LOWER limit, the UPPER limit will be set equal to the LOWER limit.

If the first request line is BLANK it will terminate the request list and cause all data to be retrieved.

12 -22 (²11)

Maximum
MAT or ZA
(see 1-11, line 1)

Ê

1-11 (E11.4)

ENERGY for ERROR law

The acceptable linearizing error can be given as an energy dependent function specified by up to 20 (energy,error) pairs and linear interpolation tabulate points. Energies must be in ascending order.

The error law is terminated by a BLANK card.

If the first error law card is BLANK it will terminate the error law and the error will be treated as energy independent, equal to zero, which indicates that the broadened data should not be thinned  (DEF).

12-22 (E11.4)

ERROR for ERROR law

   Let RESULT.2 is the ENDF formatted file after processing by the RECENT code.
Assuming that we intend to broad to 300 K all neutron  cross sections for included 
materials within an accuracy of 1 per-cent (0.01 as a fraction). 
Let name of output ENDF formatted file   will be RESULT.3.  


The asterisks in this example, following below, in input file have to
correspond to the blanks. Here they are presented to facilitate the
calculation of positions.


********10********20********30********40********50********60********70********80
12345678901234567890123456789012345678901234567890123456789012345678901234567890
**********1**********0*******300.0********0.0*********0**********0         
RESULT.2
RESULT.3
**********1******99999
********************************************************************************
************1.00000-02
********************************************************************************
12345678901234567890123456789012345678901234567890123456789012345678901234567890


Running of the code: SIGMA1.EXE