A5048861559- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Atomic and Subatomic Physics Research
- Neutrino Physics Research
- Radiation Detection and Scintillator Technologies
- Soft Robotics and Applications
- Quantum, superfluid, helium dynamics
- Augmented Reality Applications
- Surgical Simulation and Training
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- High-Energy Particle Collisions Research
- Robotics and Sensor-Based Localization
- Astrophysics and Cosmic Phenomena
- Nuclear Physics and Applications
- Image Processing Techniques and Applications
- Cosmology and Gravitation Theories
- Anatomy and Medical Technology
- Teleoperation and Haptic Systems
- Cold Atom Physics and Bose-Einstein Condensates
- Robot Manipulation and Learning
- Nuclear physics research studies
- Cell Image Analysis Techniques
- Piezoelectric Actuators and Control
- Electrowetting and Microfluidic Technologies
Zhejiang University-University of Edinburgh Institute
2019-2025
Tianjin University
2025
Zhejiang University
2009-2025
University of Illinois Urbana-Champaign
2015-2024
University of California, San Diego
2020-2024
Zhejiang International Studies University
2021-2024
Universidade de São Paulo
2021-2024
Yale University
2008-2024
Xenon Pharmaceuticals (Canada)
2024
Shanxi Normal University
2020-2023
We report on a search for neutrinoless double-beta decay of $^{136}$Xe with EXO-200. No signal is observed an exposure 32.5 kg-yr, background ~1.5 x 10^{-3} /(kg yr keV) in the $\pm 1\sigma$ region interest. This sets lower limit half-life $T_{1/2}^{0\nu\beta\beta}$($^{136}$Xe) > 1.6 10$^{25}$ (90% CL), corresponding to effective Majorana masses less than 140-380 meV, depending matrix element calculation.
A search for neutrinoless double-beta decay ($0\nu\beta\beta$) in $^{136}$Xe is performed with the full EXO-200 dataset using a deep neural network to discriminate between $0\nu\beta\beta$ and background events. Relative previous analyses, signal detection efficiency has been raised from 80.8% 96.4$\pm$3.0% energy resolution of detector at Q-value improved $\sigma/E=1.23\%$ $1.15\pm0.02\%$ upgraded detector. Accounting new data, median 90% confidence level half-life sensitivity this analysis...
Results from a search for neutrinoless double-beta decay (0νββ) of ^{136}Xe are presented using the first year data taken with upgraded EXO-200 detector. Relative to previous searches by EXO-200, energy resolution detector has been improved σ/E=1.23%, electric field in drift region raised 50%, and system suppress radon volume between cryostat lead shielding implemented. In addition, analysis techniques that improve topological discrimination 0νββ background events have developed....
Computer-assisted oral and maxillofacial surgery (OMS) has been rapidly evolving since the last decade. State-of-the-art surgical navigation in OMS still suffers from bulky tracking sensors, troublesome image registration procedures, patient movement, loss of depth perception visual guidance, low accuracy. We present an augmented reality system with automatic marker-free using 3-D overlay stereo for dental surgery. A customized camera is designed to track both instrument. Image performed by...
We report on an improved measurement of the $2\ensuremath{\nu}\ensuremath{\beta}\ensuremath{\beta}$ half-life ${}^{136}$Xe performed by EXO-200. The use a large and homogeneous time-projection chamber allows for precise estimate fiducial mass used measurement, resulting in small systematic uncertainty. also discuss detail data-analysis methods double-$\ensuremath{\beta}$ decay searches with EXO-200, while emphasizing those directly related to present measurement. is found be...
We present new constraints on the dark matter-induced annual modulation signal using 1.7 years, of COSINE-100 data with a total exposure 97.7 kg$\cdot$years. The experiment, consisting 106 kg NaI(Tl) target material, is designed to carry out model-independent test DAMA/LIBRA's claim WIMP discovery by searching for same target. crystal show 2.7 cpd/kg/keV background rate average in 2--6 keV energy region interest. Using $\chi$-squared minimization method we observe best fit values amplitude...
COSINE is a dark matter search experiment based on an array of low background NaI(Tl) crystals located at the Yangyang underground laboratory. The assembly COSINE-100 was completed in summer 2016 and detector currently collecting physics quality data aimed reproducing DAMA/LIBRA that reported annual modulation signal. Stable operation has been achieved will continue for least two years. Here, we describe design COSINE-100, including shielding arrangement, configuration crystal detection...
Oral and maxillofacial surgery has not been benefitting from image guidance techniques owing to the limitations in registration.A real-time markerless registration method is proposed by integrating a shape matching into 2D tracking framework. The performed patient's teeth model with intraoperative video obtain its pose. resulting pose used overlay relevant models same CT space on camera for augmented reality.The system was evaluated mandible/maxilla phantoms, volunteer clinical data....
EXO-200 is an experiment designed to search for double beta decay of $^{136}$Xe with a single-phase, liquid xenon detector. It uses active mass 110 kg enriched 80.6% in the isotope 136 ultra-low background time projection chamber capable simultaneous detection ionization and scintillation. This paper describes detector particular attention most innovative aspects design that revolve around reduction backgrounds, efficient use expensive isotopically xenon, optimization energy resolution...
COSINE-100 is a direct detection dark matter experiment that aims to test DAMA/LIBRA's claim of discovery by searching for dark-matter-induced annual modulation signal with NaI(Tl) detectors. We present new constraints on the from dataset 2.82 yr livetime utilizing an active mass 61.3 kg total exposure 173 kg⋅yr. This result features improved event selection allows both lowering energy threshold 1 keV and more precise time-dependent background model. In 1–6 2–6 intervals, we observe best-fit...
We present the first search for a dark matter annual modulation signal in Southern Hemisphere conducted with NaI(Tl) detectors, performed by DM-Ice17 experiment. Nuclear recoils from interactions are expected to yield an annually modulated independent of location within Earth's hemispheres. DM-Ice17, step DM-Ice experimental program, consists 17 kg located at South Pole under 2200 m.w.e. overburden Antarctic glacial ice. Taken over 3.6 years total exposure 60.8 yr, data consistent no energy...
There are an increasing number of applications that require the end-effector a robotic manipulator to be compliant in response intended force exerted by human operator. In physical human-robot interaction, stability and compliance often affected presence both environment, especially during transition from noncontact contact. Unlike previous works, interaction this letter takes into consideration human, robot, moving environment. To achieve this, proposes variable admittance control strategy...
We present new constraints on dark matter interactions using 1.7 years of COSINE-100 data. The experiment, consisting 106 kg tallium-doped sodium iodide (NaI(Tl)) target material, is aimed at testing DAMA's claim observation the same NaI(Tl) detectors. Improved event selection requirements, a more precise understanding detector background and use larger data set considerably enhances sensitivity for detection. No signal consistent with interaction identified, rules out model-dependent...
We report on the search for weakly interacting massive particle (WIMP) dark matter candidates in galactic halo that interact with sodium and iodine nuclei COSINE-100 experiment produce energetic electrons accompany recoil via Migdal effect. The WIMP mass sensitivity of previous searches relied detection ionization signals produced by target recoiling from elastic WIMP-nucleus scattering was restricted to masses above $\sim$5 GeV/$c^2$ detectors' 1 keVee energy-electron-equivalent threshold....
Abstract The DAMA/LIBRA collaboration has reported the observation of an annual modulation in event rate that been attributed to dark matter interactions over last two decades. However, even though tremendous efforts detect similar were pursued, no definitive evidence observed corroborate signal. Many studies assuming various models have attempted reconcile DAMA/LIBRA’s signals and null results from other experiments, however clear conclusion can be drawn. Apart hypothesis, several examined...
Abstract Indoor farming is expected to have an increasing impact on future food and agricultural systems. It can produce crops year‐round without relying weather patterns, bringing crop production systems closer advanced manufacturing for industrial consumer goods. also provides ideal platform implementing intelligence‐driven empowered that autonomously gather/process data, build a knowledge base, provide management decision support, execute cultural tasks. Towards goal, mobile robotics...
A search for Lorentz- and $CPT$-violating signals in the double beta decay spectrum of $^{136}\mathrm{Xe}$ has been performed using an exposure $100\text{ }\text{ }\mathrm{kg}\ifmmode\cdot\else\textperiodcentered\fi{}\mathrm{yr}$ with EXO-200 detector. No significant evidence spectral modification due to isotropic Lorentz-violation was found, a two-sided limit $\ensuremath{-}2.65\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}\text{...
We apply deep neural networks (DNN) to data from the EXO-200 experiment. In studied cases, DNN is able reconstruct relevant parameters—total energy and position—directly raw digitized waveforms, with minimal exceptions. For first time, developed algorithms are evaluated on real detector calibration data. The accuracy of reconstruction either reaches or exceeds what was achieved by conventional approaches over course Most existing event classification in particle physics trained Monte Carlo...
A cryogenic apparatus is described that enables a new experiment, nEDM@SNS, with major improvement in sensitivity compared to the existing limit search for neutron Electric Dipole Moment (EDM). This uses superfluid 4He produce high density of Ultra-Cold Neutrons (UCN) which are contained suitably coated pair measurement cells. The be operated at Spallation Neutron Source Oak Ridge National Laboratory, polarized 3He from an Atomic Beam injected into and transported cells where it serves as...