A5024685946- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- High-Energy Particle Collisions Research
- Nuclear Physics and Applications
- Neutrino Physics Research
- Muon and positron interactions and applications
- Particle accelerators and beam dynamics
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Radiation Effects in Electronics
- Nuclear reactor physics and engineering
- Maritime Navigation and Safety
- Graphite, nuclear technology, radiation studies
- CCD and CMOS Imaging Sensors
- Astro and Planetary Science
- Advanced X-ray and CT Imaging
- Maritime Transport Emissions and Efficiency
- Gamma-ray bursts and supernovae
- X-ray Spectroscopy and Fluorescence Analysis
- Planetary Science and Exploration
- Medical Imaging Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Astrophysical Phenomena and Observations
Fermi National Accelerator Laboratory
1978-2024
Rutherford Appleton Laboratory
2019-2024
Imperial College London
2021-2023
Saint Thomas - Rutherford Hospital
2023
Brunel University of London
2019-2021
Research Complex at Harwell
2021
DigiLens (United States)
2013
OptiScan (United States)
2012
Incell Corporation (United States)
2011
Lockheed Martin (United States)
2010
We report results on the production of muon pairs in mass range 2.5 to 20 GeV 400-GeV proton-nucleus collisions. A total 159 events are observed 5.5 11 with a cross section which is agreement previous observation high-mass dielectron continuum signal this interval. Details dynamics and comparisons parton-model predictions presented. Within limitations resolution uncertainty, dimuon spectrum provides no evidence for fine structure above 5 GeV.
Evidence for a flavor asymmetry between the $\overline{u}$ and $\overline{d}$ quark distributions in proton has been found deep-inelastic scattering Drell-Yan experiments. The pronounced dependence of this on $x$ (fraction nucleon momentum carried by partons) observed Fermilab E866 experiment suggested drop $\overline{d}(x)/\overline{u}(x)$ ratio $x>0.15$ region. We report results from SeaQuest E906 with improved statistical precision large region up to $x=0.45$ using 120 GeV beam. Two...
The paper describes the implementation of state-of-the-art “Industry 4.0” methods and tools, a holistic ship design optimization modular production methods, as well advanced battery technologies to enable fully electrical, fast zero-emission waterborne urban transport. catamaran passenger ferry demonstrator planned for operation shuttle in Stavanger/Norway area replicator at Thames River/London are elaborated, including infrastructural issues their operation. presented research is frame...
Abstract Accelerated muon beams have been considered for the next-generation studies of high-energy lepton–antilepton collisions and neutrino oscillations. However, high-brightness not yet produced. The main challenge acceleration storage stems from large phase-space volume occupied by beam, derived production mechanism muons through decay pions. beam can be decreased ionization cooling. Here we show that cooling leads to a reduction in transverse emittance traverse lithium hydride or liquid...
Liquefied-noble-gas (LNG) detectors offer, in principle, very good energy resolution for both neutrons and gamma rays, fast response time (hence high-count-rate capabilities), excellent discrimination between scalability to large volumes. They do, however, need cryogenics. LNG sizes of interest fissionable material detection cargo are reaching a certain level maturity because the ongoing extensive R&}D effort high-energy physics regarding their use search dark matter neutrinoless double beta...
We have measured inclusive ${e}^{+}{e}^{\ensuremath{-}}$ production in 17-GeV/c ${\ensuremath{\pi}}^{\ensuremath{-}}p$ collisions and find anomalously large cross sections for pair masses below 0.6 GeV/${\mathit{c}}^{2}$ Feynman $x<0.5$. Charged particles photons produced association with were measured. Decays of known resonances are not capable explaining the effect. No excess or charged associated anomalous pairs is detected. Implications our results various models direct...
A diode irradiation with 10-MeV protons was performed to measure the silicon current related damage rate at a temperature of -50°C. This measurement fundamental predict performance detectors which will be used in X-ray spectrometers Simbol-X and BepiColombo space missions. These consist arrays large area drift chambers integrated depleted p-channel field effect transistors. The leakage increase due radiation its consequent energy resolution degradation can critical for these missions,...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Cathie Condron, Craig Brown, Tsahi Gozani, Michael Hernandez, Willem G. J. Langeveld; Linear accelerator x-ray sources with high duty cycle. AIP Conf. Proc. 19 April 2013; 1525 (1): 704–708. https://doi.org/10.1063/1.4802418 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers...
High-brightness muon beams of energy comparable to those produced by state-of-the-art electron, proton and ion accelerators have yet be realised. Such the potential carry search for new phenomena in lepton-antilepton collisions extremely high also provide uniquely well-characterised neutrino beams. A beam may created through decay pions interaction a with target. To produce high-brightness from such source requires that phase space volume occupied muons reduced (cooled). Ionization cooling...
The Muon Ionization Cooling Experiment (MICE) collaboration seeks to demonstrate the feasibility of ionization cooling, technique by which it is proposed cool muon beam at a future neutrino factory or collider. emittance measured from an ensemble muons assembled those that pass through experiment. A pure selected using particle-identification system can reject efficiently both pions and electrons. position momentum each are high-precision scintillating-fibre tracker in 4 T solenoidal...
Inclusive ${e}^{+}{e}^{\ensuremath{-}}$ production in 17-GeV/c ${\ensuremath{\pi}}^{\ensuremath{-}}p$ collisions has been measured. An excess of pairs over those from known sources for $0.1<~{m}_{\mathrm{ee}}<~0.6$ GeV and $x<0.5$ was found. No evidence is found enhancements specific final states involving electrons photons or charged particles. The photon multiplicity associated with these
X‐ray cargo inspection systems for the detection and verification of threats contraband must address stringent, competitive performance requirements. High x‐ray intensity is needed to penetrate dense cargo, while low desirable minimize radiation footprint, i.e. size controlled area, required shielding dose personnel. In a collaborative effort between HESCO/PTSE Inc., XScell Corp., Stangenes Industries, Inc. Rapiscan Laboratories, an Intensity Modulated Advanced Source (IMAXS) was designed...
An experiment was performed to measure the current related damage rate of silicon soon after a 10 MeV proton irradiation at −50° C, in condition which effect leakage annealing is negligible. This measurement fundamental predict spectroscopic performance macropixel detectors will be mounted on Simbol-X and BepiColombo space missions. Macropixel consist matrices Silicon Drift Detectors with an integrated DEPFET readout node each pixel offer optimal solution when large area needed but noise...
Compared to traditional labor-intensive manual design approaches, automated conceptual and parametric for unmanned underwater vehicles (UUV's) can be executed at dramatically lower cost using a novel Automated Vehicle Conceptual Design Utility (AVCDU) developed Lockheed Martin MS2. This utility automates the UUV spiral process in way similar tools from more established disciplines such as naval architecture aerospace engineering. Accepting mission payload descriptions, AVCDU iterates...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Tsahi Gozani, Timothy Shaw, Michael J. King, John Stevenson, Mashal Elsalim, Craig Brown, Cathie Condron; Combined Photoneutron And X Ray Interrogation Of Containers For Nuclear Materials. AIP Conf. Proc. 1 June 2011; 1336 (1): 686–692. https://doi.org/10.1063/1.3586190 Download citation file: Ris (Zotero)...
Although the proton was discovered about 100 years ago, its spin structure still remains a mystery. Recent studies suggest that orbital angular momentum of sea quarks could significantly contribute to proton's spin. The SeaQuest experiment, which recently completed data collection, probed unpolarized light quark distributions using Drell-Yan process. Its successor, SpinQuest (E1039), will access $\bar{u}$ and $\bar{d}$ Sivers functions polarized NH$_3$ ND$_3$ targets. A non-zero asymmetry,...
Muon beams of low emittance provide the basis for intense, well-characterised neutrino a factory and multi-TeV lepton-antilepton collisions at muon collider. The international Ionization Cooling Experiment (MICE) has demonstrated principle ionization cooling, technique by which it is proposed to reduce phase-space volume occupied beam such facilities. This paper documents performance detectors used in MICE measure muon-beam parameters, physical properties liquid hydrogen energy absorber...