A5101792538- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Medical Imaging Techniques and Applications
- Atomic and Molecular Physics
- Laser-induced spectroscopy and plasma
- Particle Detector Development and Performance
- Mass Spectrometry Techniques and Applications
- Nuclear Engineering Thermal-Hydraulics
- Fluid Dynamics and Mixing
- Orbital Angular Momentum in Optics
- X-ray Diffraction in Crystallography
- Random lasers and scattering media
- Ion-surface interactions and analysis
- Metallurgical Processes and Thermodynamics
- Advanced Chemical Physics Studies
- Spectroscopy and Laser Applications
- Nuclear reactor physics and engineering
- Radioactive contamination and transfer
- High-pressure geophysics and materials
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced X-ray Imaging Techniques
- Radioactivity and Radon Measurements
- Atomic and Subatomic Physics Research
- Radiation Dose and Imaging
Sichuan University of Science and Engineering
2021-2022
Chengdu University of Technology
2009-2021
Dalian Maritime University
2021
Anhui Normal University
2009
Tsinghua University
2008
The on-line prompt gamma neutron activation analysis (PGNAA) system is used to measure a series of prepared experimental samples obtain the characteristic γ-rays elements Ca, Fe, Si, Al, Mg and S in examples SiO2, Al2O3, MgO, CaO (powder), (block), CaCO3, Fe2O3, Fe3O4 S. γ-ray energies are: 3.54 or 4.93 MeV; 4.42 6.42 S, 5.42 5.92 7.63 MeV. Meanwhile, main are measured an experiment which blended constitute cement sample. will contribute more with increase mass, as known from concerning...
Resonance-enhanced multiphoton ionization (REMPI) of Ti, Co, and Ni atoms has been investigated in the 285–320 nm region. We couple a laser-ablated metal target into molecular beam to produce atoms. Ions produced from photoionization neutral are monitored by home-built time-of-flight mass spectrometer. Photoionization cross sections excited states were deduced dependence ion signal intensity on laser for photon energies close threshold. The values obtained range 0.2 6.0 Mb. No significant...
An improved X-ray-computed tomography technique was proposed to measure the phase concentration at a cross-section of axisymmetric two-phase flows. A theoretical algorithm, that is, Tikhonov Regularization (TR) based Abel's inversion method, developed reconstruct spatial distribution on projection data. digital pulsed X-ray imaging facility recommended capture dynamic variation data pulse width ∼100 ns freeze dynamics. The acquired were first calibrated carefully take into account nonideal...
Resonance-enhanced multiphoton ionization of the titanium atoms has been investigated in 293321 nm wavelength. We couple a laser-ablated metal target into molecular beam to produce free atoms. Ions produced from photoionization neutral are monitored by home-built time-of-flight mass spectrometer. Photoionization cross sections excited states Ti I were deduced dependence ion signal intensity on laser for photon energies close threshold. The values obtained range 0.2 Mb 6.0 Mb. No significant...
In situ radiation measurements are commonly used to detect radioactive material in luggage; at border control checkpoints; for in-field monitoring; during the illicit transfer of nuclear material; and contamination sites, e.g., Fukushima accident site. considering high brightness, fast decay time, good energy resolution cerium-doped lanthanum bromide [LaBr3(Ce)] scintillation detectors, this work conducted an experimental analysis aimed evaluating potential applying LaBr3(Ce) detectors...
Photodissociation dynamics of H2O via the Ẽ′1B2 state were studied using high-resolution H atom photofragment translational spectroscopy method, in combination with tunable vacuum ultraviolet free electron laser (VUV FEL). The measured energy spectra allow us to determine respective quantum population distributions for nascent OH(X2Π) and OH(A2Σ+) photofragments. Analyses show both ground electronically excited OH fragments be formed moderate vibrational excitation but highly rotational...
The CGI (CGI) has the potential of low cost, dose, and high resolution, which is very attractive for development radiation imaging field. However, many sub-coding plates must be used in modulation process, greatly affects technology. In order to reduce coding plates, we refer rotation method computed tomography (CT), then propose a novel based on rotational single-column striped plate. This utilizes spatial variation single plate (rotation) realize multiple ray field improves utilization...