A5027763168- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Nuclear Physics and Applications
- Gamma-ray bursts and supernovae
- Atomic and Subatomic Physics Research
- Atmospheric Ozone and Climate
- Quantum Chromodynamics and Particle Interactions
- Nuclear reactor physics and engineering
- Solar and Space Plasma Dynamics
- Radioactivity and Radon Measurements
- Physics of Superconductivity and Magnetism
- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Scientific Research and Discoveries
- Radioactive contamination and transfer
- Urban Heat Island Mitigation
- Impact of Light on Environment and Health
- Superconducting Materials and Applications
- Pulsars and Gravitational Waves Research
University of Sheffield
2013-2025
The University of Tokyo
2020-2024
University of Toyama
2024
Mirion Technologies (France)
2023
University College London
2023
University of Edinburgh
2023
UK Astronomy Technology Centre
2023
Rutherford Appleton Laboratory
2021
Okayama University
2021
Tokyo University of Science
2021
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 their masses charged detection capabilities. While current WC reconstruct tracks over a wide energy range, they cannot efficiently detect neutrons. Gadolinium (Gd) has the largest thermal neutron capture cross section of all stable nuclei produces an 8 MeV gamma cascade that can be detected with high efficiency. Because many new...
Abstract As we move to an era where next generation ultra-low background particle physics experiments begin be designed and constructed, the ability assay materials with high sensitivity at speed a variety of techniques will key. This paper describes Mirion Technologies (Canberra) specialty detectors installed commissioned Boulby Underground Laboratory between 2017 2021. The low levels combine shielding radon-reduced dry nitrogen purge system give approaching best in world without need for...
Abstract This paper reports the development and detailed properties of about 13 metric tons gadolinium sulfate octahydrate, $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$, which has been dissolved into Super-Kamiokande (SK) in summer 2020. We evaluate impact radioactive impurities 8H_2O$ on diffuse supernova neutrino background searches solar observation confirm need to reduce fluorescent by three orders magnitude from commercially available high-purity 8H_2O$. In order produce ultra-high-purity we...
In low activity gamma spectrometric measurements of large, dense samples, the bulk sample material shields HPGe crystal from external background sources. If not accounted for in studies that utilise background-subtraction methods, this effect may result systematic errors and detection limit estimation. We introduce a Monte Carlo based method to minimise impact on spectra. It is validated using simulated detector backgrounds applied measurement low-activity [Formula: see text] . One main...
The prevalent use of large volume liquid argon detectors strongly motivates the development novel readout and monitoring technology which functions at cryogenic temperatures. This paper presents a CMOS camera system suitable for inside detector online purposes. characterisation is described in detail. reliability such has been demonstrated over several months, recent data from operation within region DUNE 35tcryostat presented. cameras were used to monitor high voltage breakdown cryostat,...
Liquid argon time projection chamber technology is an attractive choice for large neutrino detectors, as it provides a high-resolution active target and expected to be scalable very masses. Consequently, has been chosen the first module of DUNE far detector. However, fiducial mass required "far detectors" next generation oscillation experiments exceeds what demonstrated so far. Scaling this larger mass, well requirement underground construction places number additional constraints on design....
The PocketWATCH facility is a unique multi-purpose test bed designed to replicate the conditions of large water Cherenkov detectors. Housed at University Sheffield, consists light-tight 2000L ultrapure tank with purification and temperature control systems. Water temperature, resistivity, UV attenuation in are monitored shown be stable over time. system also compatible solution 0.2% gadolinium sulfate, allowing further utility testing equipment bound for next generation neutrino nucleon...
Abstract The PocketWATCH facility is a unique multi-purpose test bed designed to replicate the conditions of large water Cherenkov detectors. Housed at University Sheffield, consists light-tight 2000 L ultrapure tank with purification and temperature control systems. Water temperature, resistivity, UV attenuation in are monitored shown be stable over time. system also compatible solution 0.2% gadolinium sulfate, allowing further utility testing equipment bound for next generation neutrino...
The 35-ton prototype for the Deep Underground Neutrino Experiment far detector was a single-phase liquid argon time projection chamber with an integrated photon system, all situated inside membrane cryostat. took cosmic-ray data six weeks during period of February 1, 2016 to March 12, 2016. performance detection system checked these data. An installed demonstrated measure arrival times muons resolution better than 32 ns, limited by timing trigger system. A measurement using closely-spaced...
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 their masses charged detection capabilities. While current WC reconstruct tracks over a wide energy range, they cannot efficiently detect neutrons. Gadolinium (Gd) has the largest thermal neutron capture cross section of all stable nuclei produces an 8 MeV gamma cascade that can be detected with high efficiency. Because many new...
As we move to an era where next generation low-background particle physics experiments begin be designed and constructed, the ability assay materials with high sensitivity at speed a variety of techniques will key. This paper describes Mirion Technologies (Canberra) specialty ultra-low background detectors installed commissioned Boulby Underground Laboratory between 2017 2021. The low levels combine shielding radon-reduced dry nitrogen purge system give approaching best in world without need...
For future low-background particle physics experiments, it will be essential to assay candidate detector materials using an array of techniques. To minimise the risk sample contamination whilst moving between techniques, is also sensible distance stations, particularly for non-destructive techniques where may end up being installed into experiment. The Boulby UnderGround Screening (BUGS) Facility comprises germanium detectors, two XIA UltraLo-1800 surface-alpha counters, radon emanation...
This paper reports the development and detailed properties of about 13 tons gadolinium sulfate octahydrate, $\rm Gd_2(\rm SO_4)_3\cdot \rm 8H_2O$, which has been dissolved into Super-Kamiokande (SK) in summer 2020. We evaluate impact radioactive impurities 8H_2O$ on DSNB searches solar neutrino observation confirm need to reduce fluorescent by three orders magnitude from commercially available high-purity 8H_2O$. In order produce ultra-high-purity we have developed a method remove oxide,...