A5068206827- Nuclear Physics and Applications
- Nuclear Materials and Properties
- Nuclear reactor physics and engineering
- Particle accelerators and beam dynamics
- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Magnetic confinement fusion research
- Spectral Theory in Mathematical Physics
- Gamma-ray bursts and supernovae
- Infrared Target Detection Methodologies
- Geophysics and Gravity Measurements
- Antioxidant Activity and Oxidative Stress
- Spectroscopy and Laser Applications
- Phytochemicals and Antioxidant Activities
- Atmospheric aerosols and clouds
- Neutrino Physics Research
- Optical and Acousto-Optic Technologies
- Advanced Measurement and Detection Methods
- Analytical Chemistry and Chromatography
- advanced mathematical theories
- Molecular spectroscopy and chirality
- Superconducting Materials and Applications
- Calibration and Measurement Techniques
- Quantum Mechanics and Applications
Chinese Academy of Sciences
2018-2025
China Spallation Neutron Source
2018-2025
Spallation Neutron Source
2025
Changchun Institute of Optics, Fine Mechanics and Physics
2023-2024
Shanghai Innovative Research Center of Traditional Chinese Medicine
2024
China Academy of Engineering Physics
2020-2023
Institute of High Energy Physics
2018-2023
Hebei Normal University
2021
Shanghai Astronomical Observatory
2021
Abstract The first Water Cherenkov detector of the LHAASO experiment (WCDA-1) has been operating since April 2019. data for year have analyzed to test its performance by observing Crab Nebula as a standard candle. WCDA-1 achieves sensitivity 65 mCU per year, with statistical threshold 5 . To accomplish this, 97.7% cosmic-ray background rejection rate around 1 TeV and 99.8% 6 an approximate photon acceptance 50% is achieved after applying algorithm separate gamma-induced showers. angular...
232Th/233U fuel cycle is an alternate candidate for future nuclear energy. Neutron-induced fission cross section of 232Th one the important data if using thorium as in future. 232Th(n, f) sections from 1 to 300 MeV were measured at China Spallation Neutron Source (CSNS) Back-streaming neutron facility (Back-n) relative 235U(n, and n-p scattering. A fast ionization chamber measurement (FIXM) a proton recoil telescope (PRT) used perform measurement. The energy this reaches up which supposed be...
The China Spallation Neutron Source (CSNS) is an accelerator-based multidisciplinary user facility located in Dongguan, Guangdong, China. It was launched 2011 and started delivering neutron beams to users March 2018. CSNS complex consists of H− linear accelerator, a rapid cycling synchrotron that accelerates the beam 1.6 GeV, solid tungsten target station, various instruments for spallation applications. This paper focuses on vacuum system from ion source Drift Tube Linac, aiming review...
In the currently deployed scheme utilizing Acousto-Optic Tunable Filter (AOTF) in conjunction with echelle grating, maximum spectral overlap for low diffraction orders exceeds 2/3, while encountering issue of discontinuity at higher orders. We propose a method to address image plane order imaging spectrometers. This utilizes principle matching resolution AOTF free range eliminate overlap, ensuring that there are no gaps between bands each output. With this method, we recalculate...
Existing research on Fabry-Perot (FP) spectrometers lacks tolerance analysis and desensitization for the parallelism of afocal systems, leading to scenarios where, despite systems being satisfactory in design, their deteriorated during actual production. Therefore, this letter proposes a optimization method applied FP spectrometers. By creating multiple zooms, we can intuitively analyze impact each parallelism, perform based characteristic angle changes dictated by etalon. Utilizing method,...
In the latest developments within field of quantum information science, Bargmann invariants have emerged as fundamental quantities, uniquely characterizing tuples states while remaining invariant under unitary transformations. However, determining boundaries quantum-realizable values for arbitrary order remains a significant theoretical challenge. this work, we completely solve problem by deriving unified boundary formulation these values. Through rigorous mathematical analysis and numerical...
Signal-to-noise ratio (SNR) analysis is a crucial component of optical system development for space remote sensing instruments. It serves as quantitative assessment the imaging quality and radiometric characteristics sensing. This paper utilizes working principles energy transfer instruments to conduct SNR model commonly used spaceborne imagers, spectrometers, micro-optical instruments, point-source spatial targets. Additionally, also examines impact presence width slits in different...
The neutron-induced cross sections are of great significance for the design nuclear devices and advanced reactors energy production. At CSNS Back-n white neutron source, new measurements fission total performed with two sets Day-one spectrometers based on multi-cell fast ionization chamber (FIC). 236,238U relative to 235U from threshold 200 MeV were measured by using TOF method Fast Ionization Chamber Spectrometer Fission Cross Section Measurement (FIXM) in single/double bunch mode Back-n....