1 st BASTRA meeting - GSI Webserver WWW-WIN

Neutron Balance (Device)
• U-Pu and Th-Pu fuel types show similar trends in
library differences
• JAR-95 compilation taken as reference
• Differences for JENDL-3.2:
– 2-4% excess for capture in fuels, coolant and cladding
– 2-4% deficit for fission in fuels, (n,xn) in coolant
– 25-30% deficit for (n,xn) in cladding
• Differences for ENDF/B-VI:
– 0.5-2% excess for capture in fuels and cladding
– Around 4% deficit for capture in coolant
– 0.5-2% deficit for fission in fuels
– Around 6% excess for (n,xn) in coolant
– 1.5-2.5% excess for (n,xn) in cladding
1st meeting of the BASTRA Cluster, Dec. 5, 2001, CERN