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International Reactor Dosimetry File 2002 - IAEA Publications

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TABLE 6.2. CROSS-SECTIONS IN IRDF-<strong>2002</strong> AND THEIR CHARACTERISTICS (TEMPERATURE OF 300 K) (cont.)<br />

Reaction<br />

Selected<br />

evaluation<br />

Calculated<br />

library crosssection<br />

(2200 m/s)<br />

σ L (b)<br />

Resonance<br />

integral from<br />

library data<br />

IR L (b)<br />

Uncertainty in<br />

library data<br />

Thermal<br />

(%)<br />

Epithermal<br />

(%)<br />

Calculated average<br />

library crosssection<br />

in 252 Uncertainty in<br />

Cf<br />

(%) a C/E<br />

fission (mb) a<br />

235 U(n,f)<br />

g<br />

IRDF-90 586 272 0.19 0.26 1218 0.32 (0.32) Thermal: 1.00 ± 0.004, b<br />

Epithermal: 0.99 ± 0.02, b<br />

1.007 ± 0.0102 a<br />

238 U(n,f) JENDL/D-99 — — — — 319.2 2.00 (2.04) 0.980 ± 0.026<br />

a<br />

238 U(n,γ) IRDF-90 2.72 277 0.35 0.37 — — Thermal: 1.01 ± 0.01,<br />

d<br />

1.00 ± 0.04 b<br />

Epithermal:1.00 ± 0.01, d<br />

1.00 ± 0.01 b<br />

237 Np(n,f) RRDF-98 (n) — — — — 1359 1.72 (1.74) 0.999 ± 0.024<br />

a<br />

239 Pu(n,f) JENDL/D-99 747 297 0.71 3.82 1804 2.04 (2.04) Thermal: 0.99 ± 0.01<br />

b<br />

Epithermal: 0.99 ± 0.05 b ,<br />

0.996 ± 0.025 a<br />

68

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