T. J. Sumner
YOU?
Author Swipe
View article: Forecasting people exposed to tropical cyclone flooding in Southeast Africa: Lessons learned from recent events
Forecasting people exposed to tropical cyclone flooding in Southeast Africa: Lessons learned from recent events Open
East Africa has recently experienced a series of devastating tropical cyclone landfalls characterised by hundreds of fatalities, millions of displaced people and substantial economic damage. Forecasting the impact of these tropical cyclone…
View article: Supplementary material to "Forecasting people exposed to tropical cyclone flooding in Southeast Africa: Lessons learned from recent events"
Supplementary material to "Forecasting people exposed to tropical cyclone flooding in Southeast Africa: Lessons learned from recent events" Open
View article: Transforming a rare event search into a not-so-rare event search in real-time with deep learning-based object detection
Transforming a rare event search into a not-so-rare event search in real-time with deep learning-based object detection Open
Deep learning-based object detection algorithms enable the simultaneous classification and localization of any number of objects in image data. Many of these algorithms are capable of operating in real-time on high resolution images, attri…
View article: Magnetic-Induced Force Noise in LISA Pathfinder Free-Falling Test Masses
Magnetic-Induced Force Noise in LISA Pathfinder Free-Falling Test Masses Open
LISA Pathfinder was a mission designed to test key technologies required for gravitational wave detection in space. Magnetically driven forces play a key role in the instrument sensitivity in the low-frequency regime, which corresponds to …
View article: Precision measurements of the magnetic parameters of LISA Pathfinder test masses
Precision measurements of the magnetic parameters of LISA Pathfinder test masses Open
A precise characterization of the magnetic properties of LISA Pathfinder free falling test-masses is of special interest for future gravitational wave observatory in space. Magnetic forces have an important impact on the instrument sensiti…
View article: A Universe dominated by dark energy?
A Universe dominated by dark energy? Open
Observations of our Universe have led to a current consensus model which has a number of unexpected and, some would say bizarre characteristics. These include two epochs in time when it exhibits a ‘strange’ behaviour, namely the Big Bang m…
View article: Tilt-to-length coupling in LISA Pathfinder: Long-term stability
Tilt-to-length coupling in LISA Pathfinder: Long-term stability Open
The tilt-to-length coupling during the LISA Pathfinder mission has been numerically and analytically modeled for particular time spans. In this work, we investigate the long-term stability of the coupling coefficients of this noise. We sho…
View article: In-depth analysis of LISA Pathfinder performance results: Time evolution, noise projection, physical models, and implications for LISA
In-depth analysis of LISA Pathfinder performance results: Time evolution, noise projection, physical models, and implications for LISA Open
We present an in-depth analysis of the LISA Pathfinder differential acceleration performance over the entire course of its science operations, spanning approximately 500 days. We find: (1) The evolution of the Brownian noise that dominates…
View article: Tilt-to-length coupling in LISA Pathfinder: long-term stability
Tilt-to-length coupling in LISA Pathfinder: long-term stability Open
The tilt-to-length coupling during the LISA Pathfinder mission has been\nnumerically and analytically modeled for particular timespans. In this work, we\ninvestigate the long-term stability of the coupling coefficients of this noise.\nWe s…
View article: Precision measurements of the magnetic parameters of LISA Pathfinder test masses
Precision measurements of the magnetic parameters of LISA Pathfinder test masses Open
A precise characterization of the magnetic properties of LISA Pathfinder free falling test-masses is of special interest for future gravitational wave observatory in space. Magnetic forces have an important impact on the instrument sensiti…
View article: migYOLO - An end-to-end YOLOv8-based object detection pipeline for CMOS camera images recorded by the MIGDAL experiment
migYOLO - An end-to-end YOLOv8-based object detection pipeline for CMOS camera images recorded by the MIGDAL experiment Open
migYOLO v1.0.0 migYOLO is the software accompanying the MIGDAL collaboration paper titled Transforming a rare event search into a not-so-rare event search in real-time with deep learning-based object detection. This package includes model …
View article: Nano-Newton electrostatic force actuators for femto-Newton-sensitive measurements: System performance test in the LISA Pathfinder mission
Nano-Newton electrostatic force actuators for femto-Newton-sensitive measurements: System performance test in the LISA Pathfinder mission Open
Electrostatic force actuation is a key component of the system of geodesic reference test masses (TM) for the LISA orbiting gravitational wave observatory and in particular for performance at low frequencies, below 1 mHz, where the observa…
View article: Muon-induced background in a next-generation dark matter experiment based on liquid xenon
Muon-induced background in a next-generation dark matter experiment based on liquid xenon Open
Muon-induced neutrons can lead to potentially irreducible backgrounds in rare event search experiments. We have investigated the implication of laboratory depth on the muon-induced background in a future dark matter experiment capable of r…
View article: Sensor noise in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>L</mml:mi><mml:mi>I</mml:mi><mml:mi>S</mml:mi><mml:mi>A</mml:mi></mml:mrow></mml:math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>P</mml:mi><mml:mi>a</mml:mi><mml:mi>t</mml:mi><mml:mi>h</mml:mi><mml:mi>f</mml:mi><mml:mi>i</mml:mi><mml:mi>n</mml:mi><mml:mi>d</mml:mi><mml:mi>e</mml:mi><mml:mi>r</mml:mi></mml:mrow></mml:math>: Laser frequency noise and its coupling to the optical test mass readout
Sensor noise in : Laser frequency noise and its coupling to the optical test mass readout Open
The (LPF) mission successfully demonstrated the feasibility of the technology needed for the future space borne gravitational wave observatory LISA. A key subsystem under study was the laser interferometer, which measured the changes in re…
View article: NanoNewton electrostatic force actuators for femtoNewton-sensitive measurements: system performance test in the LISA Pathfinder mission
NanoNewton electrostatic force actuators for femtoNewton-sensitive measurements: system performance test in the LISA Pathfinder mission Open
Electrostatic force actuation is a key component of the system of geodesic reference test masses (TM) for the LISA orbiting gravitational wave observatory and in particular for performance at low frequencies, below 1 mHz, where the observa…
View article: Tilt-to-length coupling in LISA Pathfinder: A data analysis
Tilt-to-length coupling in LISA Pathfinder: A data analysis Open
We present a study of the tilt-to-length coupling noise during the LISA Pathfinder mission and how it depended on the system’s alignment. Tilt-to-length coupling noise is the unwanted coupling of angular and lateral spacecraft or test mass…
View article: Muon-induced background in a next-generation dark matter experiment based on liquid xenon
Muon-induced background in a next-generation dark matter experiment based on liquid xenon Open
Muon-induced neutrons can lead to potentially irreducible backgrounds in rare event search experiments. We have investigated the implication of laboratory depth on the muon-induced background in a future dark matter experiment capable of r…
View article: Recommendations to improve the interpretation of global flood forecasts to support international humanitarian operations for tropical cyclones
Recommendations to improve the interpretation of global flood forecasts to support international humanitarian operations for tropical cyclones Open
International humanitarian organisations increasingly turn to forecast teams to support the coordination of efforts to respond to disasters caused by hazards such as tropical cyclones and large‐scale fluvial floods. Such disasters often oc…
View article: The association between sociodemographic, clinical, and potentially preventive therapies with oxaliplatin-induced peripheral neuropathy in colorectal cancer patients
The association between sociodemographic, clinical, and potentially preventive therapies with oxaliplatin-induced peripheral neuropathy in colorectal cancer patients Open
View article: The MIGDAL experiment: Measuring a rare atomic process to aid the search for dark matter
The MIGDAL experiment: Measuring a rare atomic process to aid the search for dark matter Open
We present the Migdal In Galactic Dark mAtter expLoration (MIGDAL) experiment aiming at the unambiguous observation and study of the so-called Migdal effect induced by fast-neutron scattering. It is hoped that this elusive atomic process c…
View article: Charging of free-falling test masses in orbit due to cosmic rays: Results from <i>LISA Pathfinder</i>
Charging of free-falling test masses in orbit due to cosmic rays: Results from <i>LISA Pathfinder</i> Open
A comprehensive summary of the measurements made to characterize test-mass charging due to the space environment during the LISA Pathfinder mission is presented. Measurements of the residual charge of the test mass after release by the gra…
View article: Fast and flexible analysis of direct dark matter search data with machine learning
Fast and flexible analysis of direct dark matter search data with machine learning Open
We present the results from combining machine learning with the profile likelihood fit procedure, using data from the Large Underground Xenon (LUX) dark matter experiment. This approach demonstrates reduction in computation time by a facto…
View article: Nuclear Recoil Calibration at Sub-keV Energies in LUX and Its Impact on Dark Matter Search Sensitivity
Nuclear Recoil Calibration at Sub-keV Energies in LUX and Its Impact on Dark Matter Search Sensitivity Open
Dual-phase xenon time projection chamber (TPC) detectors offer heightened sensitivities for dark matter detection across a spectrum of particle masses. To broaden their capability to low-mass dark matter interactions, we investigated the l…
View article: Sensor noise in <i>LISA Pathfinder</i>: An extensive in-flight review of the angular and longitudinal interferometric measurement system
Sensor noise in <i>LISA Pathfinder</i>: An extensive in-flight review of the angular and longitudinal interferometric measurement system Open
In a previous article [1], we have reported on the first subpicometer interferometer flown in space as part of ESA’s LISA Pathfinder mission, and have shown the residual sensor noise to be on the level of 32.0+2.4?1.7 fm/?Hz. This review p…
View article: Result of the MICROSCOPE weak equivalence principle test
Result of the MICROSCOPE weak equivalence principle test Open
The space mission MICROSCOPE dedicated to the test of the equivalence principle (EP) operated from April 25, 2016 until the deactivation of the satellite on October 16, 2018. In this analysis we compare the free-fall accelerations ( a A an…
View article: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>M</mml:mi><mml:mi>I</mml:mi><mml:mi>C</mml:mi><mml:mi>R</mml:mi><mml:mi>O</mml:mi><mml:mi>S</mml:mi><mml:mi>C</mml:mi><mml:mi>O</mml:mi><mml:mi>P</mml:mi><mml:mi>E</mml:mi></mml:math> Mission: Final Results of the Test of the Equivalence Principle
Mission: Final Results of the Test of the Equivalence Principle Open
The MICROSCOPE mission was designed to test the weak equivalence principle (WEP), stating the equality between the inertial and the gravitational masses, with a precision of 10^{-15} in terms of the Eötvös ratio η. Its experimental test co…
View article: Transient acceleration events in LISA Pathfinder data: Properties and possible physical origin
Transient acceleration events in LISA Pathfinder data: Properties and possible physical origin Open
We present an in depth analysis of the transient events, or glitches, detected at a rate of about one per day in the differential acceleration data of LISA Pathfinder. We show that these glitches fall in two rather distinct categories: fas…
View article: The MIGDAL experiment: Measuring a rare atomic process to aid the search for dark matter
The MIGDAL experiment: Measuring a rare atomic process to aid the search for dark matter Open
We present the Migdal In Galactic Dark mAtter expLoration (MIGDAL) experiment aiming at the unambiguous observation and study of the so-called Migdal effect induced by fast-neutron scattering. It is hoped that this elusive atomic process c…
View article: A five-dimensional approach to dark matter and dark energy
A five-dimensional approach to dark matter and dark energy Open
View article: Fast and Flexible Analysis of Direct Dark Matter Search Data with Machine Learning
Fast and Flexible Analysis of Direct Dark Matter Search Data with Machine Learning Open
We present the results from combining machine learning with the profile likelihood fit procedure, using data from the Large Underground Xenon (LUX) dark matter experiment. This approach demonstrates reduction in computation time by a facto…