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Table 7

Summary of the calculation errors Δαiso (in pcm/°C) for the MISTRAL experiments obtained with the Monte-Carlo code TRIPOLI4®. Our results are compared with those obtained with the deterministic code APOLLO2  [17]. The experimental uncertainties are also given in pcm/°C. The contribution of the statistical uncertainties due to the Monte-Carlo calculations (±0.02 pcm/°C) is negligible.

MISTRAL configuration Temperature range Exp. unc. Calculation errors on RTC in pcm/°C

JEFF-3.1.1 (APOLLO2) JEFF-3.1.1 (TRIPOLI4) ENDF/B-VII.1 (TRIPOLI4) CAB model (TRIPOLI4)
MISTRAL-1 10 to 40 °C ±0.4 +0.9 +0.29 +0.31 +0.49
(UOX) 40 to 80 °C ±0.4 +0.1 −0.86 −0.80 −0.41
10 to 80 °C ±0.3 +0.4 −0.36 −0.33 −0.02
MISTRAL-2 (MOX) 10 to 40 °C ±0.4 −0.5 −0.98 −1.01 −0.72
40 to 80 °C ±0.4 −1.1
10 to 80 °C ±0.3 −0.9
MISTRAL-3 (MOX) 10 to 40 °C ±0.5 −0.4
40 to 80 °C ±0.5 −1.4
10 to 80 °C ±0.4 −1.0

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