Abstract
Self-shielding effects are often ignored in S/U analysis because methods do not currently exist to obtain self-shielded covariance data. An alternative to using selfshielded covariance data is to compute "complete sensitivity coefficient"that include the effect of self-shielding. the effects of selfshielding. The complete sensitivities are combined with infinitely dilute covariances in the usual manner to obtain response uncertainties that include explicit effects of uncertainties in the infinitely dilute XS's, as well as implicit effects from uncertainties introduced in the fluxweight function used for self-shielding. This method is implemented in the TSUNAMI sequences of SCALE. For some cases the complete sensitivities may differ considerably from the explicit component alone, which is used for S/U analysis in most other codes.
| Original language | English |
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| Pages (from-to) | 799-801 |
| Number of pages | 3 |
| Journal | Transactions of the American Nuclear Society |
| Volume | 104 |
| State | Published - 2011 |
| Event | 2011 ANS Annual Meeting - Hollywood, FL, United States Duration: Jun 26 2011 → Jun 30 2011 |