Templates of expected measurement uncertainties for average prompt and total fission neutron multiplicities

In this paper, we provide templates of measurement uncertainty sources expected to appear for average prompt- and total-fission neutron multiplicities, ν ¯ p $ \overline\nu_p $ and ν ¯ t $ \overline\nu_t $ , for the following measurement types: absolute manganese-bath experiments for ν ¯ t $ \overline\nu_t $ , absolute and ratio liquid-scintillator measurements for ν ¯ p $ \overline\nu_p $ . These templates also suggest a typical range of these uncertainties and their correlations based on a survey of available experimental data, associated literature, and feedback from experimentalists. In addition, the information needed to faithfully include the associated experimental data into the nuclear-data evaluation process is provided.