Measurements of the effective thermal neutron absorption cross-section in multi-grain model
| dc.contributor.author | Drozdowicz, Krzysztof | |
| dc.contributor.author | Gabańska, Barbara | |
| dc.contributor.author | Igielski, Andrzej | |
| dc.contributor.author | Krynicka, Ewa | |
| dc.contributor.author | Schneider, Krystyna | |
| dc.contributor.author | Woźnicka, Urszula | |
| dc.date.accessioned | 2018-01-12T11:02:34Z | |
| dc.date.available | 2018-01-12T11:02:34Z | |
| dc.date.issued | 2005 | |
| dc.description.abstract | The effective macroscopic absorption cross-section Σaeff of thermal neutrons in a grained medium differs from the corresponding cross-section Σahom in the homogeneous medium consisting of the same components, contributing in the same amounts. The ratio of these cross-sections defines the grain parameter, G, which is a measure of heterogeneity of the system for neutron absorption. Heterogeneous models have been built as two- or three-component systems (Ag, Cu and Co3O4 grains distributed in a regular grid in Plexiglas, in various proportions between them). The effective absorption cross-section has been measured and the experimental grain parameter has been found for each model. The obtained values are in the interval 0.34 < G < 0.58, while G = 1 means the homogeneous material. | pl_PL.UTF-8 |
| dc.identifier.uri | http://rifj.ifj.edu.pl/handle/item/178 | |
| dc.language.iso | eng | pl_PL.UTF-8 |
| dc.publisher | Institute of Nuclear Physics Polish Academy of Sciences | pl_PL.UTF-8 |
| dc.relation.ispartofseries | Raport IFJ PAN;1957/PN | |
| dc.title | Measurements of the effective thermal neutron absorption cross-section in multi-grain model | pl_PL.UTF-8 |
| dc.type | Report | pl_PL.UTF-8 |
