A5009888477- Laser-Plasma Interactions and Diagnostics
- High-pressure geophysics and materials
- Fusion materials and technologies
- Luminescence Properties of Advanced Materials
- Magnetic confinement fusion research
- Laser-induced spectroscopy and plasma
- Laser Design and Applications
- Radiation Detection and Scintillator Technologies
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear Physics and Applications
- Surface Roughness and Optical Measurements
- Advanced X-ray Imaging Techniques
- Laser-Matter Interactions and Applications
- Ocular and Laser Science Research
- Leaf Properties and Growth Measurement
- Adsorption, diffusion, and thermodynamic properties of materials
- Photorefractive and Nonlinear Optics
- Advanced Semiconductor Detectors and Materials
- Laser Material Processing Techniques
- Photonic and Optical Devices
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Advanced Optical Sensing Technologies
- Atomic and Subatomic Physics Research
- Photonic Crystals and Applications
- Digital Radiography and Breast Imaging
China Academy of Engineering Physics
2015-2024
Complexe de Recherche Interprofessionnel en Aérothermochimie
2023
Chinese Academy of Engineering
2017-2022
Guangdong University of Technology
2018
Peking University
2018
Shanghai Jiao Tong University
2018
Institute of Applied Physics and Computational Mathematics
2018
Huazhong University of Science and Technology
2012-2015
Abstract A method for diagnosing implosion symmetry in inertial confinement fusion(ICF) with wide-angle velocity interferometer system any reflector(VISAR)was proposed this study. The considers the object-image relationship of VISAR, characteristics fringe pattern, and theory; pattern must be continuous space to apply method. Hydrodynamic calculations showed that radiation-temperature distribution on surface capsule was spatially continuous, indirectly proving applicability evolution P2...
A 100 kJ-level laser facility has been designed to study inertial confinement fusion physics in China. This incorporates various diagnostic techniques, including optical, x-ray imaging, spectrum, and product diagnostics, as well general diagnostics assistance systems central control data acquisition systems. paper describes recent developments at the facility.
A space-resolving flux detector (SRFD) is developed to measure the X-ray emitted from a specified region in hohlraum with high resolution up 0.11mm for first time. This novel has been used successfully distinct fluxes hot laser spot and cooler re-emitting simultaneously, experiments on SGIII prototype facility. According our experiments, ratio of re-emitted shows strong time-dependent behavior, area-weighted post-processed measured wall agrees that Laser Entrance Hole by using flat-response...
The development of a polar-view Kirkpatrick-Baez microscope, fielded in the upper polar zone Shenguang-III laser fusion facility, is presented. With this resolving power polar-direction X-ray imaging diagnostics improved, to 3 ~5 μm scale. microscope designed for implosion asymmetry studies, with response energy points at 1.2 keV, 3.5 and 8 keV. A biperiodic multilayer scheme adopted accommodate multiple stages. We present overall optical system design, target aiming scheme, characteristic...
X-ray imaging has garnered widespread interest in biomedical diagnosis and nondestructive detection. The exploration of radio-photoluminescence hastened the advancement information storage. However, significant challenges persist achieving prolonged curved objects without attenuation. Here, europium-doped strontium fluoride (SrF2:Eu) is meticulously created to exhibit a linear response an extensive range doses (maximum dose > 5000 Gy), showcasing excellent reading/erasing reusability...
The measurement of hotspot electron temperature is a paramount technique implosion physics research in inertial confinement fusion. This study proposes novel quasi-coaxis dual-energy flat spectral response high-resolution X-ray imaging instrument comprising dual-channel total-reflection Kirkpatrick-Baez microscope and two non-periodic multilayer mirrors, which can image at 6.4 ± 0.5 9.67 keV simultaneously. Various theoretical simulations were performed to verify the performance feasibility...
Space-resolving flux detection is a novel technique for the precise diagnostic of radiation field within hohlraum in inertial confinement fusion. Detailed analysis made on geometrical efficiency space-resolving detector (SRFD), which essential importance application absolutely localized measurement. With two cascade collimation modules, namely pinhole and defining aperture, view system could be classified as full-light area half-light area, solid angles point sources with respect to...
Abstract This study explores the radiation field temperatures introduced by laser spot, re-emitting wall in a hohlraum and entire drive source. investigation, which is first of its kind, based on fluxes from spot wall, have been accurately measured using time- space-resolving flux detectors recent work, additional data. The temperature difference between source was 6.08–35.35% latter throughout pulse, whilst that for 3.90–12.81%. cooler had more influence increase than hot laser-spot...
In inertial confinement fusion, quantitative and high-spatial resolution ([Formula: see text]m) measurements of the X-rays self-emitted by hotspot are critical for studying physical processes implosion stagnation stage. Herein, 8 ± 0.39-keV monochromatic X-ray distribution from entire is quantitatively observed in 5-[Formula: text]m spatial using a Kirkpatrick-Baez microscope, with impacts responses diagnosis system removed, first time, experiments at 100 kJ laser facility China....
X-ray imaging plates are one of the most important detectors and widely used in inertial-confinement fusion experiments. However, their linear response range, which is foundation quantitative data analysis, has not been sufficiently deeply investigated. In this work, we develop an fluorescer calibration system carefully explore range plates. For first time, nearly entire grayscale plate response-7819-64 879 0-65 535-has observed. Further, discuss uncertainties involved process. This work...
High-space-resolving information of hotspot electron temperature is a foundation for further research on physical processes implosion in inertial confinement fusion. This work proposed novel high-space-resolving detector, which based the bremsstrahlung radiation mechanism and uses two-channel Kirkpatrick–Baez microscopes. In this an optical quasi-coaxis method was used to eliminate strong impact view field difference high space resolution correctness diagnosis, compound KB microscope reduce...
A new method for measuring the time-dependent drive flux at hohlraum center is proposed as a better alternative to conventional wall-based techniques. The here obtained by simultaneous measurement of reemitted and shock velocity from three-layered "cakelike" sample. With these two independent observables, influence induced uncertainty material parameters sample can be effectively decreased. closure laser entrance hole, which was main challenge in techniques, avoided through localized...
Space-resolving flux detection is an important technique for the diagnostic of radiation field within hohlraum in inertial confinement fusion, especially novel spherical with octahedral six laser entrance holes (LEHs), where localized measurements are necessary discrimination from different LEHs. A space-resolving detector (SRFD) developed at SG-III facility measurement first campaign energetics experiment. The principle and configuration SRFD system introduced. wall a gas-filled measured...
The space-resolving measurement of X-ray flux from a specific area (laser spot, re-emitting wall, or capsule) inside the hohlraum is an ongoing and critical problem in indirectly driven inertial-confinement fusion experiments. In this work, we developed new two-dimensional detection technique to measure areas by using time- detector (SRFD). two typical experiments conducted at Shenguang-III prototype laser facility, radiation temperature 0.2 mm diameter were measured through entrance hole...
Abstract We present for the first time characterization of time-dependent radiation drive on capsule by measuring localized re-emitted flux at Shenguang-III prototype laser facility. The was obtained with measured from and fluxes hohlraum wall, in combination hydrodynamic simulations. It revealed that temporal behavior quite distinguished approximately 6 eV (12 eV) lower than up 55° (up 30°). This technique presents a novel way assessment flux, both cylindrical hohlraums more two entrance...
<p>This letter focuses on the description of divergence factor a wave in terms differential geometry, called Vectorial Complex Ray Model (VCRM), and its application scattering large nonspherical dielectric particle. The VCRM permits to calculate amplitude phase electric field rigorously ray model, but it fails predict correctly near caustics (in rainbow angles). This problem is solved by combining calculated with physical optics. hybrid method then applied, as example, an infinite...