Lognormal-Based Sampling for Fission Product Yields Uncertainty Propagation in Pebble-Bed HTGR

<div>Histogram of 1,000 multiplication factor samples obtained at equilibrium core state. (a) Samples obtained by normal-based sampling procedures. (b) Samples obtained by lognormal-based samples procedures. Red line indicates the superimposed fitted normal density from the sampled data.</div>

Science and Technology of Nuclear Installations

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Figure 18

Figure 18: Lognormal-Based Sampling for Fission Product Yields Uncertainty Propagation in Pebble-Bed HTGR 