Hybrid K-edge/XRF densitometry (HKED) is an important nondestructive assay method for determining the concentrations of special nuclear materials in solutions.  HKED is widely used for safeguarding reprocessing plants and for determining the uranium and plutonium content in nuclear forensics samples.  The current calibration method for K-edge densitometry does not take into account small-angle Compton scattering.  A new calibration method will be presented which takes this scattering into account.  The new method reduces the time and money spent on system calibration, reduces systematic error, and eliminates the need for recalibration after the degradation of the x-ray tube tungsten target.  The method will be derived and validated with experimental data.  Further, the elimination of the dependency between calibration accuracy and tungsten target integrity will be verified by modelling.

New K-edge densitometry calibration technique

254th National Meeting (2017)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.