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Probability Table Method for the Unresolved Resonance Range

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Presentation on theme: "Probability Table Method for the Unresolved Resonance Range"— Presentation transcript:

1 Probability Table Method for the Unresolved Resonance Range

2 Probability Table Method for the Unresolved Resonance Range

3 Probability Table Method for the Unresolved Resonance Range

4 Probability Table Method for the Unresolved Resonance Range
URR Energy Ranges Probability Table Method for the Unresolved Resonance Range

5 Probability Table Method for the Unresolved Resonance Range

6 Probability Table Method for the Unresolved Resonance Range

7 Probability Table Method for the Unresolved Resonance Range

8 Probability Table Method for the Unresolved Resonance Range

9 Probability Table Method for the Unresolved Resonance Range

10 Probability Table Method for the Unresolved Resonance Range
174Hf Scattering Cross Section 174Hf Capture Cross Section σn (barns) σγ (barns) E(eV) E(eV) Probability Table Method for the Unresolved Resonance Range

11 Probability Table Method for the Unresolved Resonance Range

12 Probability Table Method for the Unresolved Resonance Range
Probability Table for 235U at 2250 eV band 1: ≤ 12 b band 100: > 110 b 98 bands geometrically-spaced between 12 and 100 b Probability Table Method for the Unresolved Resonance Range

13 Probability Table Method for the Unresolved Resonance Range
Visualization of the Energy-Dependence of a Probability Table Probability Table Method for the Unresolved Resonance Range

14 Probability Table Method for the Unresolved Resonance Range

15 Probability Table Method for the Unresolved Resonance Range
Temperature Dependence of 174Hf Capture Cross Section 0 K 273 K 2000 K Probability Table Method for the Unresolved Resonance Range

16 Probability Table Method for the Unresolved Resonance Range

17 Probability Table Method for the Unresolved Resonance Range
Example: ZEBRA8D Critical Assembly Monte Carlo keff Results Average URR Cross Sections 0.9724(6) URR Probability Tables 0.9862(6) Difference 0.0138(8) numbers in parentheses are the 95% confidence intervals on the last digit Probability Table Method for the Unresolved Resonance Range

18 Probability Table Method for the Unresolved Resonance Range


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