Application of a deep learning algorithm to Compton imaging of radioactive point sources with a single planar CdTe pixelated detector

G Daniel, Y Gutierrez, O Limousin - Nuclear Engineering and Technology, 2022 - Elsevier
Compton imaging is the main method for locating radioactive hot spots emitting high-energy
gamma-ray photons. In particular, this imaging method is crucial when the photon energy is …

Development and preliminary results of a large-pixel two-layer LaBr3 Compton camera prototype

MH Dong, ZY Yao, YS Xiao - Nuclear Science and Techniques, 2023 - Springer
Lanthanum bromide (LaBr3) crystal has a high energy resolution and time resolution and
has been used in Compton cameras (CCs) over the past few decades. However, LaBr3 …

Large-area Compton camera for high-speed and 3-D imaging

YS Kim, JH Kim, J Lee, CH Kim - IEEE Transactions on Nuclear …, 2018 - ieeexplore.ieee.org
Compton imaging is a promising imaging modality for radioactive contamination in nuclear
facilities. However, most of the Compton cameras in nuclear applications have been …

[HTML][HTML] Development and performance evaluation of large-area hybrid gamma imager (LAHGI)

HS Lee, JH Kim, J Lee, CH Kim - Nuclear Engineering and Technology, 2021 - Elsevier
We report the development of a gamma-ray imaging device, named Large-Area Hybrid
Gamma Imager (LAHGI), featuring high imaging sensitivity and good imaging resolution …

Position-sensitive NaI (TL) detector module for large-area Compton camera

Y Kim, JH Kim, HS Lee, CH Kim - Journal of the Korean Physical Society, 2018 - Springer
In the present study, we developed a position-sensitive NaI (Tl) scintillation detector module
for use in the development of a large-area Compton camera. The developed detector …

Compton imaging reconstruction methods: a comparative performance study of direct back-projection, SOE, a new Bayesian algorithm and a new Compton inversion …

G Daniel, O Limousin, D Maier, A Meuris… - EPJ Web of …, 2020 - epj-conferences.org
Compton imaging is one of the main methods to localize radioactive hotspots, which emit
high-energy gamma-ray photons, above 200 keV. Most of the Compton imaging systems are …

Regenerative neural network for rotating scatter mask radiation imaging

RJ Olesen, JB Cole, DE Holland, EM Brubaker… - Radiation …, 2021 - Elsevier
This paper describes the design and testing of a new form of convolutional neural network, a
regenerative neural network (ReGeNN), for application to rotating scatter mask gamma …

Readout circuit system to improve the spatial resolution and measurable energy range of a Compton camera

SJ Jeon, JS Lee, SH Cho, WJ Choi… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this article, we focus on tackling position distortion in Compton imaging systems by
proposing a readout circuit based on a current conveyor. Compton imaging is a technique …

[HTML][HTML] Design and performance prediction of large-area hybrid gamma imaging system (LAHGIS) for localization of low-level radioactive material

HS Lee, JH Kim, J Lee, CH Kim - Nuclear Engineering and Technology, 2021 - Elsevier
In the present study, a large-area hybrid gamma imaging system was designed by adopting
coded aperture imaging on the basis of a large-area Compton camera to achieve high …

Development of a hemispherical rotational modulation collimator system for imaging spatial distribution of radiation sources

M Na, S Lee, G Kim, HS Kim, J Rho… - Journal of …, 2017 - iopscience.iop.org
Detecting and mapping the spatial distribution of radioactive materials is of great importance
for environmental and security issues. We design and present a novel hemispherical …