INDC(IND)-35G - IAEA Nuclear Data Services
INDC(IND)-35G - IAEA Nuclear Data Services
INDC(IND)-35G - IAEA Nuclear Data Services
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ENDF/B-IV<br />
- 28 -<br />
ATTEMPTS TO RUN<br />
LINEAR WITH 0-1%<br />
ACCURACY<br />
START FROM 0.1% RECENT OUTPUT<br />
FOR U-238 OBTAINED FROM<br />
CULLEN, <strong>IAEA</strong>.<br />
TOTAL NUMBER OF POINTS 302,941<br />
RUN SIGMA 1<br />
WITH 0-1%<br />
ACCURACY<br />
AT 300K<br />
ATTEMPTS<br />
UNSUCCUSSFUL<br />
BECAUSE OF<br />
VERY LARGE<br />
COMPUTER<br />
TIME<br />
RUN LINEAR<br />
WITH 1%<br />
ERROR<br />
CRITERION<br />
ATTEMPTS TO RUN<br />
RECENT WITH 0-1%<br />
ACCURACY<br />
ATTEMPTS WERE NOT SUCCESSFUL<br />
AS IT TAKFS MORE THAN 40<br />
HOURS OF CPU- THE CPU TIME<br />
IS 60 MINUTES WITH 10% ACCURACY<br />
CRITERION FOR RECENT AND 1%<br />
FOR LINEAR STAGE. THIS<br />
LARGE ACCURACY CRITERION<br />
IS NOT ACCEPTABLE<br />
RESULT: THINNED<br />
OUTPUT: 95 792 POINTS<br />
TIME TAKEN BY LINEAR: 0-2419 HOURS<br />
RUN SIGMA 1 AT 300K<br />
ERROR CRITERION 0-2%POINTS; 27776<br />
COMPUTER TIME FOR SIGMA 1: '9870 HOURS<br />
EXPECTED COMBIN ED ERROR IN PREPROCESSING<br />
1-03% RECENT (0-1%) LINEAR (1%) SIGMA 1(0-2%)<br />
Fig.l Flow Chart describing the Preprocessing Experience for the<br />
Nuclide U-238 '
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