On the influence of matrix's heterogeneity on uncertainty of gamma-spectrometry at activity assay of radioactive waste
The influence of the waste matrix heterogeneity on the flux density value of initial gamma quanta at the transport of quanta in the matrix was considered. It is shown that the waste heterogeneity leads to the positive shift of the average flux density value comparing with corresponding value for ho...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Institute for Nuclear Research, National Academy of Sciences of Ukraine
2009-09-01
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| Series: | Âderna Fìzika ta Energetika |
| Subjects: | |
| Online Access: | http://jnpae.kinr.kiev.ua/10.3/Articles_PDF/jnpae-2009-10-0326-Prokopenko.pdf |
| Summary: | The influence of the waste matrix heterogeneity on the flux density value of initial gamma quanta at the transport of quanta in the matrix was considered. It is shown that the waste heterogeneity leads to the positive shift of the average flux density value comparing with corresponding value for homogeneous waste if average value of the attenuation factor
in heterogeneous matrix is equal to the attenuation factor of homogeneous matrix. Due to this the activity assay of
heterogeneous waste by a technique which was calibrated by using a homogeneous standard (surrogate container) the
measurement results will be positively shifted, or, in other words, conservative estimation of the waste activity will be obtained. |
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| ISSN: | 1818-331X 2074-0565 |