Flux homogeneity, stability, and reproducibility

It is extremely important to map the neutron flux in all irradiation sites in terms of homogeneity, stability, and reproducibility. Flux monitors in each irradiated sample, or group of samples, are usually used to obtain reliable quantitative results. 

For INAA, it is desirable that the neutron flux be as stable as possible during the irradiation of the sample and standard and be reproducible from one run to the other. For studying short lived nuclides by CINAA, it is essential that the flux be both highly stable and reproducible. In these cases, flux monitoring is normally possible. 

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