Based on the model-and data-driven strategy,a spectroscopy learning method that can extract the novel and hidden information from the line list databases has been applied to the R branch emission spectra of 3-0 band o...Based on the model-and data-driven strategy,a spectroscopy learning method that can extract the novel and hidden information from the line list databases has been applied to the R branch emission spectra of 3-0 band of the ground electronic state of^(12)C^(16)O.The labeled line lists such as line intensities and Einstein A coefficients quoted in HITRAN2020 are collected to enhance the dataset.The quantified spectroscopy-learned spectroscopic constants is beneficial for improving the extrapolative accuracy beyond the measurements.Explicit comparisons are made for line positions,line intensities,Einstein A coefficients,which demonstrate that the model-and data-driven spectroscopy learning approach is a promising and an easy-to-implement strategy.展开更多
To study helium(He)supersonic molecular beam injection(SMBI)into H-mode tokamak plasma,a simplified multicomponent-plasma model under the assumption of quasi-neutral condition is developed and implemented in the frame...To study helium(He)supersonic molecular beam injection(SMBI)into H-mode tokamak plasma,a simplified multicomponent-plasma model under the assumption of quasi-neutral condition is developed and implemented in the frame of BOUT++.The simulation results show that He species propagate inwards after He SMBI,and are deposited at the bottom of the pedestal due to intensive ionization and weak spreading speed.It is found that almost all injected helium particles strip off all the bounded electrons.He species interact intensively with background plasma along the injection path during He SMBI,making deuterium ion density profile drop at the He-deposited location and resulting in a large electron temperature decreasing,but deuterium ion temperature decreasing a little at the top of the pedestal.展开更多
The calculation results of the R-branch transition emission spectra of(0–0) band of the A21 → X21 transition system of Sb Na molecule are presented in this paper. These R-branch high-lying transitional emission spec...The calculation results of the R-branch transition emission spectra of(0–0) band of the A21 → X21 transition system of Sb Na molecule are presented in this paper. These R-branch high-lying transitional emission spectral lines are predicted by using the difference converging method(DCM). Our results show excellent agreement between DCM spectral lines and the experimental values, and the deviations are controlled within 0.0224 cm-1. What is more, based on the principle of over-determined linear equations, the prediction error is quantified in this work, which provides reliable theoretical support for our predicted DCM calculations. This work provides a lot of useful information for understanding the microstructure of Sb Na molecule.展开更多
基金Project supported by the Open Research Fund of Computational Physics Key Laboratory of Sichuan Province,Yibin University(Grant No.YBXYJSWLZD-2020-006)the Funds for Sichuan Distinguished Scientists of China(Grant Nos.2019JDJQ0050 and 2019JDJQ0051)+3 种基金the National Natural Science Foundation of China(Grant Nos.61722507 and 11904295)the National Undergraduate Innovation and Entrepreneurship Training Program of China(Grant No.S202110650046)the State Key Laboratory Open Fund of Quantum Optics and Quantum Optics Devices,Laser Spectroscopy Laboratory(Grant No.KF201811)the Open Research Fund Program of the Collaborative Innovation Center of Extreme Optics(Grant No.KF2020003)。
文摘Based on the model-and data-driven strategy,a spectroscopy learning method that can extract the novel and hidden information from the line list databases has been applied to the R branch emission spectra of 3-0 band of the ground electronic state of^(12)C^(16)O.The labeled line lists such as line intensities and Einstein A coefficients quoted in HITRAN2020 are collected to enhance the dataset.The quantified spectroscopy-learned spectroscopic constants is beneficial for improving the extrapolative accuracy beyond the measurements.Explicit comparisons are made for line positions,line intensities,Einstein A coefficients,which demonstrate that the model-and data-driven spectroscopy learning approach is a promising and an easy-to-implement strategy.
基金Chunhui Program of the Ministry of Education of China(Grant No.Z2017091)the Sichuan Provincial Science Foundation for Distinguished Young Leaders of Disciplines in Science and Technology,China(Grant Nos.2019JDJQ0051 and 2019JDJQ0050)+2 种基金the National Natural Science Foundation of China(Grant Nos.11575055 and 11605143)the Fund for Young Scientists of China,the Open Research Subjects of the Key Laboratory of Advanced Computation in Xihua University,China(Grant Nos.szjj2017-011 and szjj2017-012)the Young Scholarship Plan of Xihua University,China(Grant No.0220170201).
文摘To study helium(He)supersonic molecular beam injection(SMBI)into H-mode tokamak plasma,a simplified multicomponent-plasma model under the assumption of quasi-neutral condition is developed and implemented in the frame of BOUT++.The simulation results show that He species propagate inwards after He SMBI,and are deposited at the bottom of the pedestal due to intensive ionization and weak spreading speed.It is found that almost all injected helium particles strip off all the bounded electrons.He species interact intensively with background plasma along the injection path during He SMBI,making deuterium ion density profile drop at the He-deposited location and resulting in a large electron temperature decreasing,but deuterium ion temperature decreasing a little at the top of the pedestal.
基金Project supported by the Sichuan Education Department Project,China(Grant No.17ZA0369)the Fund for Sichuan Distinguished Scientists of China(Grant Nos.2019JDJQ0050 and 2019JDJQ0051)+2 种基金the National Natural Science Foundation of China(Grant Nos.61722507 and 11904295)the State Key Laboratory Open Fund of Quantum Optics and Quantum Optics DevicesLaser Spectroscopy Laboratory,China(Grant Nos.KF201811 and KF2020003)。
文摘The calculation results of the R-branch transition emission spectra of(0–0) band of the A21 → X21 transition system of Sb Na molecule are presented in this paper. These R-branch high-lying transitional emission spectral lines are predicted by using the difference converging method(DCM). Our results show excellent agreement between DCM spectral lines and the experimental values, and the deviations are controlled within 0.0224 cm-1. What is more, based on the principle of over-determined linear equations, the prediction error is quantified in this work, which provides reliable theoretical support for our predicted DCM calculations. This work provides a lot of useful information for understanding the microstructure of Sb Na molecule.
