Andreas Enqvist
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View article: Design and development of optical modules for the BUTTON-30 detector
Design and development of optical modules for the BUTTON-30 detector Open
BUTTON-30 is a neutrino detector demonstrator located in the STFC Boulby underground facility in the north-east of England. The main goal of the project is to deploy and test the performance of the gadolinium-loaded water-based liquid scin…
View article: The BUTTON-30 detector at Boulby
The BUTTON-30 detector at Boulby Open
The BUTTON-30 detector is a 30-tonne technology demonstrator designed to evaluate the potential of hybrid event detection, simultaneously exploiting both Cherenkov and scintillation light to detect particle produced in neutrino interaction…
View article: Applying Machine Learning Algorithms to Classify Digitized Special Nuclear Material Obtained from Scintillation Detectors
Applying Machine Learning Algorithms to Classify Digitized Special Nuclear Material Obtained from Scintillation Detectors Open
The capability to discriminate among nuclear fuel properties is essential for a successful nuclear safeguard and security program. Accurate nuclear material identification is hindered due to challenges such as differing levels of enrichmen…
View article: LASE characterizations of neutrino detector media optical properties
LASE characterizations of neutrino detector media optical properties Open
View article: Feasibility of Fast Neutron Spectroscopy for Safeguards and Verification of Spent Fuel in Dry Cask Storage
Feasibility of Fast Neutron Spectroscopy for Safeguards and Verification of Spent Fuel in Dry Cask Storage Open
View article: Applications and Deployment of Neutron Scatter Cameras in Nuclear Safeguards Scenarios
Applications and Deployment of Neutron Scatter Cameras in Nuclear Safeguards Scenarios Open
Neutron scatter cameras (NSCs) are a type of directionally sensitive neutron detector that rely on two consecutive neutron scattering events to localize a source of neutrons. NSCs can be used to locate, image, and identify unknown neutron …
View article: NuclearGazeAuth
NuclearGazeAuth Open
Eye and head movement dataset from Random Dot viewing, 360 image viewing, and a 360 nuclear reactor training procedure collected in VR. This dataset is referenced in the following paper: LaRubbio, K., Wright, J., David-John, B., Enqvist, A…
View article: NuclearGazeAuth
NuclearGazeAuth Open
Eye and head movement dataset from Random Dot viewing, 360 image viewing, and a 360 nuclear reactor training procedure collected in VR. This dataset is referenced in the following paper: LaRubbio, K., Wright, J., David-John, B., Enqvist, A…
View article: ResNet and CycleGAN for pulse shape discrimination of He-4 detector pulses: Recovering pulses conventional algorithms fail to label unanimously
ResNet and CycleGAN for pulse shape discrimination of He-4 detector pulses: Recovering pulses conventional algorithms fail to label unanimously Open
View article: Development of Prototype Simplified Neutron Scatter Camera for Nuclear Safeguards Applications
Development of Prototype Simplified Neutron Scatter Camera for Nuclear Safeguards Applications Open
Neutron scatter cameras are a type of directional neutron detectors that rely on multiple neutron scatters to generate images that can reveal the direction and distribution of neutron sources. Fast neutron cameras which have recently been …
View article: Gamma-ray spectrum variations for surface measurements of uranium hexafluoride cylinders
Gamma-ray spectrum variations for surface measurements of uranium hexafluoride cylinders Open
View article: Dry cask radiation shielding validation and estimation of cask surface dose rate with MAVRIC during long-term storage
Dry cask radiation shielding validation and estimation of cask surface dose rate with MAVRIC during long-term storage Open
View article: Used Fuel Storage Monitoring Using Helium-4 Scintillation Fast Neutron Detectors and Neutron Spectral Analysis
Used Fuel Storage Monitoring Using Helium-4 Scintillation Fast Neutron Detectors and Neutron Spectral Analysis Open
This project aimed to address the technology gap in the reliable methods to verify contents of sealed dry storage casks for spent nuclear fuel. Helium-4 gas scintillation neutron detectors was proposed to be developed into a neutron spectr…
View article: Measurement of neutron and gamma-ray cross-correlation functions with 4He detectors
Measurement of neutron and gamma-ray cross-correlation functions with 4He detectors Open
View article: Neutron spectroscopy and spectral unfolding with 4He fast neutron scintillators
Neutron spectroscopy and spectral unfolding with 4He fast neutron scintillators Open
View article: Verification and validation of atmospheric transport models with the UF Training Reactor
Verification and validation of atmospheric transport models with the UF Training Reactor Open
View article: A comparison of Monte Carlo fission models for safeguards neutron coincidence counters
A comparison of Monte Carlo fission models for safeguards neutron coincidence counters Open
View article: DE-NE0008277_PROTEUS final technical report 2018
DE-NE0008277_PROTEUS final technical report 2018 Open
This project details re-evaluations of experiments of gas-cooled fast reactor (GCFR) core designs performed in the 1970s at the PROTEUS reactor and create a series of International Reactor Physics Experiment Evaluation Project (IRPhEP) ben…
View article: Radiation dose rate distributions of spent fuel dry casks estimated with MAVRIC based on detailed geometry and continuous-energy models
Radiation dose rate distributions of spent fuel dry casks estimated with MAVRIC based on detailed geometry and continuous-energy models Open
View article: Data fusion for a vision-aided radiological detection system: Calibration algorithm performance
Data fusion for a vision-aided radiological detection system: Calibration algorithm performance Open
View article: Timing Characterization of Helium-4 Fast Neutron Detector with EJ-309 Organic Liquid Scintillator
Timing Characterization of Helium-4 Fast Neutron Detector with EJ-309 Organic Liquid Scintillator Open
Recently, the Helium-4 gas fast neutron scintillation detectors is being used in time-sensitive measurements, such time-of-flight and multiplicity counting. In this paper, a set of time aligned signals was acquired in a coincidence measure…
View article: Data-Fusion for a Vision-Aided Radiological Detection System: Sensor dependence and Source Tracking
Data-Fusion for a Vision-Aided Radiological Detection System: Sensor dependence and Source Tracking Open
The University of Florida is taking a multidisciplinary approach to fuse the data between 3D vision sensors and radiological sensors in hopes of creating a system capable of not only detecting the presence of a radiological threat, but als…
View article: Pulse Shape Analysis and Discrimination for Silicon-Photomultipliers in Helium-4 Gas Scintillation Neutron Detector
Pulse Shape Analysis and Discrimination for Silicon-Photomultipliers in Helium-4 Gas Scintillation Neutron Detector Open
Using natural helium (helium-4), the Arktis 180-bar pressurized gas scintillator is capable of detecting and distinguishing fast neutrons and gammas. The detector has a unique design of three optically separated segments in which 12 silico…
View article: Development of Neutron Energy Spectral Signatures for Passive Monitoring of Spent Nuclear Fuels in Dry Cask Storage
Development of Neutron Energy Spectral Signatures for Passive Monitoring of Spent Nuclear Fuels in Dry Cask Storage Open
Demand for spent nuclear fuel dry casks as an interim storage solution has increased globally and the IAEA has expressed a need for robust safeguards and verification technologies for ensuring the continuity of knowledge and the integrity …
View article: High energy neutron transmission analysis of dry cask storage
High energy neutron transmission analysis of dry cask storage Open
View article: Measurement of the energy and multiplicity distributions of neutrons from the photofission of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">U</mml:mi><mml:mprescripts/><mml:none/><mml:mn>235</mml:mn></mml:mmultiscripts></mml:math>
Measurement of the energy and multiplicity distributions of neutrons from the photofission of Open
For the first time, the complete neutron multiplicity distribution has been measured in this study from the photofission of 235U induced by high-energy spallation γ rays arriving ahead of the neutron beam at the Los Alamos Neutr…
View article: Pulse shape discrimination of Cs<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="mml4" display="inline" overflow="scroll" altimg="si4.gif"><mml:msub><mml:mrow/><mml:mrow><mml:mi mathvariant="normal">2</mml:mi></mml:mrow></mml:msub></mml:math>LiYCl<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="mml5" display="inline" overflow="scroll" altimg="si5.gif"><mml:msub><mml:mrow/><mml:mrow><mml:mi mathvariant="normal">6</mml:mi></mml:mrow></mml:msub></mml:math>:Ce<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="mml6" display="inline" overflow="scroll" altimg="si6.gif"><mml:msup><mml:mrow/><mml:mrow><mml:mi mathvariant="normal">3+</mml:mi></mml:mrow></mml:msup></mml:math> detectors at high count rate based on triangular and trapezoidal filters
Pulse shape discrimination of CsLiYCl:Ce detectors at high count rate based on triangular and trapezoidal filters Open
View article: Variations in AmLi source spectra and their estimation utilizing the 5 Ring Multiplicity Counter
Variations in AmLi source spectra and their estimation utilizing the 5 Ring Multiplicity Counter Open
View article: Measuring the scintillation decay time for different energy deposited by γ-rays and neutrons in a Cs2LiYCl6:Ce3+ detector
Measuring the scintillation decay time for different energy deposited by γ-rays and neutrons in a Cs2LiYCl6:Ce3+ detector Open
View article: Improved fission neutron energy discrimination with 4He detectors through pulse filtering
Improved fission neutron energy discrimination with 4He detectors through pulse filtering Open