Related Experiment Video
Updated: Jun 16, 2026

Fabrication and Characterization of Superconducting Resonators
Published on: May 21, 2016
Lead attenuation characteristics models
1Biomedical Technology Services, Queensland Health, Fortitude Valley, Australia. kam_lee@health.qld.gov.au
Abstract:
Lead attenuation characteristic curves are often consulted in premises radiation shielding assessments employing the non-destructive testing (NDT) method. This study developed lead attenuation characteristics mathematical models for the radionuclide Co-57. These models take into account the statistical variation of the attenuation characteristics. The results are a set of equations that a NDT assessor can use to predict the range of transmission factors for the NDT measurement or, using the inverse functions, to gauge the lead equivalence (with the associated uncertainty) of a radiation barrier. This study showed that the combined effect of types of statistical variations can form an uncertainty region on the transmission characteristics such that the relative uncertainty decreases for values of lead mass per unit area up to approximately 20 kg/m2 and 15 kg/m2 for the Ludlum 18 and Ludlum 2241-2 survey meters respectively but thereafter increases.
Related Concept Videos
Lossy Lines and Overvoltages
Attenuation
When constant series resistance and shunt conductance are present, voltage and current equations are modified. The propagation constant indicates that voltage and current waves consist of both forward and backward traveling components. These waves attenuate as they propagate, with the attenuation factor related to the resistance and conductance. In a...
Lossless Lines
Mechanistic Models: Compartment Models in Individual and Population Analysis
Traveling Waves: Lossless Lines
Pharmacodynamic Models: Direct Effect Model and Indirect Response Model
Pharmacodynamic Models: Linear Concentration–Effect Model

