Monte Carlo uncertainty analyses for integral beryllium experiments

U. Fischer*, R. L. Perel, H. Tsige-Tamirat

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations


The novel Monte Carlo technique for calculating point detector sensitivities has been applied to two representative beryllium transmission experiments with the objective to investigate the sensitivity of important responses such as the neutron multiplication and to assess the related uncertainties due to the underlying cross-section data uncertainties. As an important result, it has been revealed that the neutron multiplication power of beryllium can be predicted with good accuracy using state-of-the-art nuclear data evaluations. Severe discrepancies do exist for the spectral neutron flux distribution that would transmit into significant uncertainties of the calculated neutron spectra and of the nuclear blanket performance in blanket design calculations. With regard to this, it is suggested to re-analyze the secondary energy and angle distribution data of beryllium by means of Monte Carlo based sensitivity and uncertainty calculations. Related code development work is underway.

Original languageAmerican English
Pages (from-to)761-768
Number of pages8
JournalFusion Engineering and Design
StatePublished - Nov 2000
Event5th Interantional Symposium on Fusion Technology - Rome, Italy
Duration: 19 Sep 200024 Sep 2000


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