Data-Driven and Precursor-Group Uncertainty Propagation of Lattice Kinetic Parameters in UAM Benchmark

Table 3

Measured values of absolute delayed neutron yield () for the selected actinides plus uncertainty collected from different sources.

Isotope	(F)	Source	(T)	Source
Th-227	-	-	0.00769 0.00115	SCALE [13]
Th-229	-	-	0.01621 0.00243	SCALE [13]
Th-232	0.05470 0.00120	[7]	-	-
Pa-231	0.01110 0.00110	[27]	-	-
U-232	-	-	0.00437 0.00033	[25]
U-233	0.00729 0.00019	[7]	0.00664 0.00018	[7]
U-234	0.01060 0.00120	[7]	-	-
U-235	0.01650 0.00075	[28]	0.01580 0.00075	[28]
U-236	0.02310 0.00260	[7]	-	-
U-238	0.04510 0.00061	[7]	-	-
Np-237	0.01260 0.00070	[21]	0.01290 0.00040	[20]
Pu-238	0.00461 0.00073	[25]	-	-
Pu-239	0.00664 0.00013	[7]	0.00624 0.00024	[7]
Pu-240	0.00960 0.00110	[7]	-	-
Pu-241	-	-	0.01560 0.00160	[7]
Pu-242	0.02280 0.00250	[7]	-	-
Am-241	-	-	0.00490 0.00020	[21]
Am-243	0.00860 0.00050	[29]	0.00840 0.00040	[21]
Cm-245	-	-	0.00592 0.00039	[25]
Cf-252	0.00812 0.00053	[26]	-	-

The data for Cf-252 is the delayed neutron yield resulting from spontaneous fission.