Table 2.
Typical uncertainty sources encountered in (n, xn) measurements are tabulated with special emphasis on shapes of correlations. The notation Expi refers to different datasets from the same laboratory.
| Unc. source | Cor(Expi, Expi) | Cor(Expi, Expj) i ≠ j |
|---|---|---|
| Timing-spread | From TOF →Eout transformation | ≠0 for same facility/detector |
| Neutron-production target | Full | ≠0 for same facility |
| Neutron-flux monitoring | Gaussian | ≠0 for same facility/detector |
| Sample | Full | ≠0 for similar target/methods |
| Geometric effects | Full | ≠0 for same facility |
| Attenuation & multiple scatt. | Gaussian | Facility/methods dependent |
| Standards & references | From libraries | From libraries |
| Detector efficiency (neutrons) | Gaussian | Depends on efficiency determination |
| Detector efficiency (γ rays) | Full | Depends on efficiency determination |
| Extracting yields | Gaussian | ≠0 for same facility/detector |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.