25 citations · 25 across the 1 of their papers we have counts for
3 papers
Free-moving Quantitative Gamma-ray Imaging
Daniel Hellfeld, Mark S. Bandstra, Jayson R. Vavrek +11
The ability to map and estimate the activity of radiological source distributions in unknown three-dimensional environments has applications in the prevention and response to radio…
Improved Gamma-Ray Point Source Quantification in Three Dimensions by Modeling Attenuation in the Scene
M. S. Bandstra, D. Hellfeld, J. R. Vavrek +8
Using a series of detector measurements taken at different locations to localize a source of radiation is a well-studied problem. The source of radiation is sometimes constrained t…
Reconstructing the Position and Intensity of Multiple Gamma-Ray Point Sources with a Sparse Parametric Algorithm
Jayson R. Vavrek, Daniel Hellfeld, Mark S. Bandstra +8
We present an experimental demonstration of Additive Point Source Localization (APSL), a sparse parametric imaging algorithm that reconstructs the 3D positions and activities of mu…