L.F. Thompson
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View article: The application of muon tomography to monitoring safety andsafeguarding in nuclear waste storage and emplacement
The application of muon tomography to monitoring safety andsafeguarding in nuclear waste storage and emplacement Open
Muon tomography is a technique that harnesses naturally-occurring cosmic radiation, specifically muons, to provide information on density contrasts in otherwise difficult to access locations. Muon tomography exploits the significant flux (…
View article: PocketWATCH: design and operation of a multi-use test bed for water Cherenkov detector components in pure and gadolinium loaded water
PocketWATCH: design and operation of a multi-use test bed for water Cherenkov detector components in pure and gadolinium loaded water Open
The PocketWATCH facility is a unique multi-purpose test bed designed to replicate the conditions of large water Cherenkov detectors. Housed at the University of Sheffield, the facility consists of a light-tight 2000 L ultrapure water tank …
View article: PocketWATCH: Design and operation of a multi-use test bed for water Cherenkov detector components in pure and gadolinium loaded water
PocketWATCH: Design and operation of a multi-use test bed for water Cherenkov detector components in pure and gadolinium loaded water Open
The PocketWATCH facility is a unique multi-purpose test bed designed to replicate the conditions of large water Cherenkov detectors. Housed at the University of Sheffield, the facility consists of a light-tight 2000L ultrapure water tank w…
View article: Electron–Nucleus Scattering in the NEUT Event Generator
Electron–Nucleus Scattering in the NEUT Event Generator Open
The NEUT event generator is a widely used tool to simulate neutrino interactions for energies between 10 s of MeV and a few TeV. NEUT plays a crucial role in neutrino oscillation analyses for the T2K and Hyper-K experiments, providing the …
View article: A Novel, Low-Cost, Position-Sensitive Neutron Detector to Support Thick-Target Inverse Kinematics Experiments for Nuclear Data Measurements
A Novel, Low-Cost, Position-Sensitive Neutron Detector to Support Thick-Target Inverse Kinematics Experiments for Nuclear Data Measurements Open
High quality nuclear data lie at the heart of accurately modelling stellar systems and terrestrial nuclear reactors. However, some key reaction cross sections have large uncertainties, which limit such models in predicting isotopic abundan…
View article: Development of ultra-pure gadolinium sulfate for the Super-Kamiokande gadolinium project
Development of ultra-pure gadolinium sulfate for the Super-Kamiokande gadolinium project Open
This paper reports the development and detailed properties of about 13 metric tons of gadolinium sulfate octahydrate, $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$, which has been dissolved into Super-Kamiokande (SK) in the summer of 2020. We eval…
View article: Atmospheric Muography for Imaging and Monitoring Mesoscale Convective Systems
Atmospheric Muography for Imaging and Monitoring Mesoscale Convective Systems Open
Large-scale solid bodies on Earth such as volcanoes and man-made pyramids have been visualized with solid earth muography, and the recently invented technique, acqueous muography, has already demonstrated its capability to visualize ocean …
View article: Periodic sea-level oscillation in Tokyo Bay detected with the Tokyo-Bay seafloor hyper-kilometric submarine deep detector (TS-HKMSDD)
Periodic sea-level oscillation in Tokyo Bay detected with the Tokyo-Bay seafloor hyper-kilometric submarine deep detector (TS-HKMSDD) Open
Meteorological-tsunami-like (or meteotsunami-like) periodic oscillation was muographically detected with the Tokyo-Bay Seafloor Hyper-Kilometric Submarine Deep Detector (TS-HKMSDD) deployed in the underwater highway called the Trans-Tokyo …
View article: Gadolinium loaded Cherenkov detectors for neutron monitoring in high energy air showers
Gadolinium loaded Cherenkov detectors for neutron monitoring in high energy air showers Open
Monitoring of high energy cosmic ray neutrons is of particular interest for cosmic ray water Cherenkov detectors as intense bundles of delayed neutrons have been found to arrive after the initial passage of a high energy air shower. In thi…
View article: Adaptive threshold-based classification of sparse high-dimensional data
Adaptive threshold-based classification of sparse high-dimensional data Open
We revisit the problem of designing an efficient binary classifier in a challenging high-dimensional framework. The model under study assumes some local dependence structure among feature variables represented by a block-diagonal covarianc…
View article: Periodic Sea-Level Oscillation in Tokyo Bay Detected with the Tokyo-Bay Seafloor Hyper-Kilometric Submarine Deep Detector (TS-HKMSDD)
Periodic Sea-Level Oscillation in Tokyo Bay Detected with the Tokyo-Bay Seafloor Hyper-Kilometric Submarine Deep Detector (TS-HKMSDD) Open
Meteorological-tsunami-like (or meteotsunami-like) periodic oscillation was muographically detected with the Tokyo-Bay Seafloor Hyper-Kilometric Submarine Deep Detector (TS-HKMSDD) deployed in the underwater highway called the Trans-Tokyo …
View article: The use of muon radiography in safeguarding geological repositories
The use of muon radiography in safeguarding geological repositories Open
Muon radiography is a technique that harnesses naturally occurring cosmic radiation to noninvasively determine the density of an object of interest. The technique has many similarities to that of medical X-ray examinations and can supply d…
View article: Scintillating thermal neutron detectors for cosmic ray soil moisture monitoring
Scintillating thermal neutron detectors for cosmic ray soil moisture monitoring Open
Cosmic Ray Neutron Sensing (CRNS) is a powerful technique that allows non-invasive monitoring of soil moisture on length scales well matched for agricultural applications. One factor limiting the use of the technique within industrial agri…
View article: First results of undersea muography with the Tokyo-Bay Seafloor Hyper-Kilometric Submarine Deep Detector
First results of undersea muography with the Tokyo-Bay Seafloor Hyper-Kilometric Submarine Deep Detector Open
Tidal measurements are of great significance since they may provide us with essential data to apply towards protection of coastal communities and sea traffic. Currently, tide gauge stations and laser altimetry are commonly used for these m…
View article: Low Cost Neutron and Muon Detectors for Soil Moisture Monitoring
Low Cost Neutron and Muon Detectors for Soil Moisture Monitoring Open
Water scarcity is a significant challenge for the world’s population. With the likelihood of extreme droughts increasing each year, technologies to promote sustainable irrigation and improve resilience to water shortage are needed. Continu…
View article: Optimising Scintillating Neutron Detectors for Cosmic Ray Soil Moisture Monitoring
Optimising Scintillating Neutron Detectors for Cosmic Ray Soil Moisture Monitoring Open
Cosmic Ray Neutron Sensing (CRNS) is a powerful technique that allows non-invasive monitoring of soil moisture on length scales well matched for agricultural applications. One factor limiting the use of the technique within industrial agri…
View article: First Results of Undersea Muography with the Tokyo-Bay Seafloor Hyper-Kilometric Submarine Deep Detector MAGMA-HKMSDD Collaboration
First Results of Undersea Muography with the Tokyo-Bay Seafloor Hyper-Kilometric Submarine Deep Detector MAGMA-HKMSDD Collaboration Open
Tidal measurements are of great significance since they may provide us with essential data to apply towards protection of coastal communities and sea traffic. Currently, the tide gauge stations, satellite-based, pressure-based and ultrason…
View article: A Twin Study of Heritable and Shared Environmental Contributions to Autism
A Twin Study of Heritable and Shared Environmental Contributions to Autism Open
The present study examined genetic and shared environment contributions to quantitatively-measured autism symptoms and categorically-defined ASD. Participants included 568 twins from the Interactive Autism Network. Autism symptoms were obt…
View article: Muon tomography for railway tunnel imaging
Muon tomography for railway tunnel imaging Open
Cosmic Ray Muon Radiography utilizes highly-penetrating cosmic ray muons to\nimage the density profile of an object of interest. Here we report on the first\ntrial to use a portable field-deployable cosmic ray tracking system in order to\n…
View article: Design and performance of a 35-ton liquid argon time projection chamber as a prototype for future very large detectors
Design and performance of a 35-ton liquid argon time projection chamber as a prototype for future very large detectors Open
Liquid argon time projection chamber technology is an attractive choice for large neutrino detectors, as it provides a high-resolution active target and it is expected to be scalable to very large masses. Consequently, it has been chosen a…
View article: 3D Printing Neutron Detectors using BN/ZnS Resin
3D Printing Neutron Detectors using BN/ZnS Resin Open
In this paper we demonstrate that it is possible to produce low cost neutron-sensitive detectors using stereo-lithography additive manufacturing. A curable scintillating resin is made by mixing BN:ZnS with a commercially available UV resin…
View article: Evaluation of gadolinium’s action on water Cherenkov detector systems with EGADS
Evaluation of gadolinium’s action on water Cherenkov detector systems with EGADS Open
Artículo escrito por un elevado número de autores, sólo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiera, y los autores pertenecientes a la UAM
View article: Non-destructive assay of nuclear waste containers using muon scattering tomography in the Horizon2020 CHANCE project
Non-destructive assay of nuclear waste containers using muon scattering tomography in the Horizon2020 CHANCE project Open
Methods for the non-destructive assay of nuclear waste drums are of great importance to the nuclear waste management community, especially where loss in continuity of knowledge about the content of drums happened or chemical processes alte…
View article: Optimizing geophysical muon radiography using information theory
Optimizing geophysical muon radiography using information theory Open
SUMMARY Cosmic ray muons are highly penetrating, with some reaching several kilometres into solid rock. Consequently, muon detectors have been used to probe the interiors of large geological structures, by observing how the muon flux varie…
View article: Directionally Accelerated Detection of an Unknown Second Reactor with Antineutrinos for Mid-Field Nonproliferation Monitoring
Directionally Accelerated Detection of an Unknown Second Reactor with Antineutrinos for Mid-Field Nonproliferation Monitoring Open
When monitoring a reactor site for nuclear nonproliferation purposes, the presence of an unknown or hidden nuclear reactor could be obscured by the activities of a known reactor of much greater power nearby. Thus when monitoring reactor ac…
View article: Evaluation of Gadolinium's Action on Water Cherenkov Detector Systems with EGADS
Evaluation of Gadolinium's Action on Water Cherenkov Detector Systems with EGADS Open
Used for both proton decay searches and neutrino physics, large water Cherenkov (WC) detectors have been very successful tools in particle physics. They are notable for their large masses and charged particle detection capabilities. While …