ASTM E944-19,Standard Guide for Application of Neutron Spectrum Adjustment Methods in Reactor Surveillance.
ASTM E944-19 covers the analysis and interpretation of the physics dosimetry for Light Water Reactor (LWR) surveillance programs.
ASTM E944-19 is also applicable to irradiation damage studies in research reactors.
Referenced Documents
E523 Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Copper;
E526 Test Method for Measuring Fast-Neutron Reaction Rates by Radioactivation of Titanium;
Adjustment methods provide a means for combining the results of neutron transport calculations with neutron dosimetry measurements (see Test Method E1005 and NUREG/CR-5049) in order to obtain optimal estimates for neutron damage exposure parameters with assigned uncertainties. The inclusion of measurements reduces the uncertainties for these parameter values and provides a test for the consistency between measurements and calculations and between different measurements (see 3.3.3). This does not, however, imply that the standards for measurements and calculations of the input data can be lowered; the results of any adjustment procedure can be only as reliable as are the input data.