A5083366266- Radiation Detection and Scintillator Technologies
- Luminescence Properties of Advanced Materials
- Atomic and Subatomic Physics Research
- Nuclear Physics and Applications
- Solid-state spectroscopy and crystallography
- Catalytic Processes in Materials Science
- Terahertz technology and applications
- Medical Imaging Techniques and Applications
- Plasma Applications and Diagnostics
- Nuclear materials and radiation effects
- Cultural Heritage Materials Analysis
- Advanced Sensor and Energy Harvesting Materials
- Catalysts for Methane Reforming
- Surface Roughness and Optical Measurements
- Silicone and Siloxane Chemistry
- Advanced Polymer Synthesis and Characterization
- Synthesis and properties of polymers
- Theoretical and Computational Physics
- Photopolymerization techniques and applications
- Coal Properties and Utilization
- X-ray Spectroscopy and Fluorescence Analysis
- Pigment Synthesis and Properties
- Electrocatalysts for Energy Conversion
- Surface Modification and Superhydrophobicity
- Optical Coatings and Gratings
Northwestern Polytechnical University
2021
University of Tennessee at Knoxville
2013-2018
Radiation Monitoring Devices (United States)
2016-2017
Knoxville College
2016
Dalian University of Technology
2010-2016
Dalian University
2010-2016
Beijing Union University
2016
University of Tennessee System
2014
Xuzhou University of Technology
2014
Chinese Academy of Sciences
2013
Tl2LiYCl6:Ce (TLYC) is a recently discovered dual mode gamma-ray and neutron scintillator. So far small crystals of this composition have been studied, but for practical applications with affordable price, large-scale are required. In work, we present successful efforts to grow crack-free single sizes up ⌀1″ × 5.5″. A variety experimental techniques were employed investigate the scintillation properties. 1.2″ TLYC cylinder has light yield 25,000 ph/MeV, its energy resolution better than 4%...
Scintillators attract wide research interest for their distinct applications in radiation detection. Elpasolite halides are among the most promising scintillators due to high structural symmetry and good scintillation performance. Better understanding of underlying mechanism opens up new possibilities scintillator development. In this work, we employ a variety experimental techniques study two mixed-anion elpasolites Cs2NaRBr3I3 (R = La, Y). The emission intrinsic with light yield ranging...
Breakthrough energy resolution, R(662keV) < 4%, has been achieved with an oxide scintillator, Cerium-doped Gadolinium Yttrium Gallium Aluminum Garnet, or GYGAG(Ce). Transparent ceramic GYGAG(Ce), a peak emission wavelength of 550 nm that is better matched to Silicon photodetectors than standard PMTs. We are therefore developing spectrometer based on pixelated GYGAG(Ce) photodiode array can provide R(662 keV) = 3.6%. In comparison, large 1-2 in<sup>3</sup> size ceramics we obtain 4.6% PMT...
In this work, the scintillation properties of Cs <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> LaCl xmlns:xlink="http://www.w3.org/1999/xlink">6</sub> and LaBr single crystals doped with various Ce concentrations (0.5 at.%-40 at.%) were studied. decay time profiles, both fast (~50 ns) slow (~500 components decrease increasing concentration. The component dominates high :Ce has a light yield ~20 000 photons/MeV for 20 at.% Ce, while 35...
A collaborative study of relative hygroscopicity anhydrous halide scintillators grown at various laboratories is presented. We have developed a technique to evaluate moisture sensitivity both raw materials and crystals, in which the absorption rate measured using gravimetric analysis. Degradation scintillation performance was investigated by recording gamma-ray spectra monitoring photopeak position, count energy resolution. The accompanying physical degradation samples exposed ambient...
The rising demand for efficient radiation detectors in various applications has led to intense research on single crystal scintillators. scintillation performance strongly depends the as-grown quality. Mixed-anion elpasolite crystals with Ce-doping such as Cs2NaREBr3I3 (RE = La, Y) are among most promising candidates next generation However, there multiple challenges traditional synthesis using melt–freeze growth techniques due complicated composition, well impurities, and varying thermal...
Yttrium aluminum garnet transparent ceramics with divalent or trivalent europium ion doping were prepared by vacuum sintering at 1780 °C. Refined XRD data confirmed the pure phase ceramic little lattice expansion. The transmittance of 1.1 mm thick blue color doped sample was measured to be 61% wavelength 900 nm. photoluminescence spectrum exhibited typical broad emission related ions. Furthermore, spectra samples different concentration and annealing temperature compared.
In this work, the effects of vacuum aging melt (melt aging) and use off-stoichiometric melts <italic>via</italic> introduction excess CsI on crystal quality scintillation properties CsSrI<sub>3</sub>:Eu<sup>2+</sup>, a promising scintillator for gamma-ray detection applications, are investigated.
The detection of ionizing radiation is important in numerous applications related to national security ranging from the and identification fissile materials imaging cargo containers. A key performance criterion ability reliably identify specific gamma-ray signatures radioactive elements, energy resolution approaching 2% at 662 keV required for this task. In work, we present discovery development new high scintillators detection. ternary halide belong following compositional families:...
The integrated processes of Shenmu subbituminous coal pyrolysis and CO2 reforming methane over catalyst (Ni/SiO2) with without using dielectric barrier discharge plasma (ICCP ICCC) were carried out to check the effectiveness process on improving tar yield pyrolysis. effects temperature time product yields investigated. results indicate that both ICCC ICCP have an effect increasing compared under N2 or H2. increases increase in ICCC, while relatively lower shorter is preferable ICCP. highest...
Mn ions were co-doped in yttrium aluminum garnet doped cerium (YAG:Ce) phosphors as a co-activator and host lattice element using the co-precipitation method. These broadened emission spectra of pure YAG:Ce phosphor, which is caused by 2E-4A2, 5E-5T2 or 1T2-5T2 transition. From our X-ray diffraction results, we observed that Ce3+ (1.032 Å) was substituted at Y3+ (0.900 site, Mn4+ (0.538 Mn3+ (0.67 Al3+ (0.535 site. The chromaticity color co-ordinates YAG:Ce0.06 (0.203, 0.167), indices...