International Reactor Dosimetry File 2002 - IAEA Publications

TABLE III.3. COMPARISON OF THE Q 0 RATIO INTEGRAL TO THERMAL CAPTURE CROSS-SECTIONS FROM
VARIOUS SOURCES (cont.)
Target Product
Mughabghab
DQ
Q 0
0
(%)
Diff.
(%)
Note
Kayzero-96 IRDF-90.2 JENDL-D/99 JENDL-3.3
Q 0
(Ref.)
DQ 0
(%)
Diff.
Q 0
(%)
Diff.
Q 0
(%)
Diff.
Q 0
(%)
ENDF/B-VI
Release 8
Diff.
Q 0
(%)
EAF-99 Zolotarev
Diff.
Q 0
(%)
Diff.
Q 0
(%)
U-238 U-239 103.358 1.8 0.0 a9 103.4 1.3 1.02E+02 –1.0 1.02E+02 –1.3 1.02E+02 –1.2 1.02E+02 –1.2 1.02E+02 –1.2
Notes: Values in bold are marked highly reliable in the database calculated by means of the Kayzero software package ([III.2], released in 1996).
Reference (Ref.) values are from the Kayzero-96 k 0 database; all differences (Diff.) refer to this reference.
Mn-55 (a1): Literature value adopted (direct measurements average 1.063 ± 2.8%, maximum spread 1.097–1.035).
Fe-58 (a2): Average of direct measurements adopted.
Co-59 (a3): Literature value adopted (two direct measurements: 1.921 ± 2.8%, 1.912 ± 3%, average 1.916).
Nb-93 (a4): Direct measurements are consistent with values found in the literature.
In-115 (a5): The average of three direct measurements (each with uncertainty of about 3%) is adopted for Kayzero.
W-186 (a6): There seems to be a systematic error in the assumed cadmium factor in the k 0 database.
Au-197 (a7): ‘Ultimate standard’ — literature value adopted.
Th-232 (a8): Literature value adopted (three direct measurements average 11.77 ± 1.8%, maximum spread 12.0–11.6 with uncertainty ~2.5% each).
U-238 (a9): Literature value adopted (three direct measurements average 101.6 ± 2.0%, maximum spread 99.7–103.7 with uncertainty ~5% each).
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