Daniel Hellfeld

TL;DR: The Watchman project as discussed by the authors uses a kiloton scale gadolinium-doped (Gd) light water Cherenkov detector placed 13 kilometers from a civil nuclear reactor in the United States.

TL;DR: This paper first forms a point-source localization (PSL) approach as an optimization problem, then extends and generalizes this formulation to an iterative algorithm, called additive PSL (APSL), for sparse parametric image reconstruction, finding improved image accuracy and computational efficiency with APSL over traditional grid-based approaches.

TL;DR: The approach to real-time reconstruction using a scene-data-constrained graphics processing unit (GPU)-accelerated list-mode maximum likelihood expectation maximization (MLEM) algorithm is presented and results from several measurements in the lab and in the field are shown.

TL;DR: In this article, an active coded spherical configuration of 1-cm3 CdZnTe coplanar grid detectors on a 14-cm diameter sphere with 192 available detector locations is presented.

TL;DR: In this article, the potential of elastic antineutrino-electron scattering in a Gd-doped water Cherenkov detector to determine the direction of a nuclear reactor antineurino flux was investigated using the recently proposed WATCHMAN experiment as a baseline model and the expected scattering rate was determined assuming a 13-km standoff from a 3.758GWt light water nuclear reactor and the detector response was modeled using a Geant4-based simulation package.