cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57760/sciencedb.04573
title: Multiple Laser System for High-Resolution Thomson Scattering Diagnostics on the EAST Tokamak
title: 东方超环高分辨率汤姆逊散射诊断多激光器系统

description: A multiple laser system for high-resolutionThomson scattering diagnostics has been developed in ASIPP.The system includes laser controller, high-energy lasers, transferoptics, focusing lens, and beam alignment system. Each Nd:YAGlaser can be fired for measuring the electron temperature anddensity profiles periodically at 10 Hz, and consequently, fourlasers can be fired alternately for an average measurementfrequency of 40 Hz. In order to measure transient events, they willbe fired in rapid succession, and produce a burst of pulses. Afterabout one month trial running on the superconducting EASTtokamak, the system was proven to be capable of working wellwith improved time resolution. The system setup and analysis aredescribed in detail, as well as the measurement capability, spatialand temporal resolutions 7 mm and tens kilohertz, respectively.So as to monitor and adjust the laser beam, two beam positionsensitive detectors are installed in the 40-m beam path. Finally,the experimental results are presented.
description: A multiple laser system for high-resolutionThomson scattering diagnostics has been developed in ASIPP.The system includes laser controller, high-energy lasers, transferoptics, focusing lens, and beam alignment system. Each Nd:YAGlaser can be fired for measuring the electron temperature anddensity profiles periodically at 10 Hz, and consequently, fourlasers can be fired alternately for an average measurementfrequency of 40 Hz. In order to measure transient events, they willbe fired in rapid succession, and produce a burst of pulses. Afterabout one month trial running on the superconducting EASTtokamak, the system was proven to be capable of working wellwith improved time resolution. The system setup and analysis aredescribed in detail, as well as the measurement capability, spatialand temporal resolutions 7 mm and tens kilohertz, respectively.So as to monitor and adjust the laser beam, two beam positionsensitive detectors are installed in the 40-m beam path. Finally,the experimental results are presented.
DOI: 10.57760/sciencedb.04570
title: A dataset of Xingquan Wu et al 2022 Nucl. Fusion 62 036013
title: 论文Xingquan Wu et al 2022 Nucl. Fusion 62 036013的数据集

description: The study in the paper is concerned as a numerical model research. The model research does not involve the actual experimental data. The data in the figure of the paper are all generated by the physical model described in the paper through numerical calculation. Numerical calculation of the model code based on Matlab.The model code and its related data will be uploaded here.
description: The study in the paper is concerned as a numerical model research. The model research does not involve the actual experimental data. The data in the figure of the paper are all generated by the physical model described in the paper through numerical calculation. Numerical calculation of the model code based on Matlab.The model code and its related data will be uploaded here.
DOI: 10.57760/sciencedb.04576
title: Achievements of actively controlled divertor detachment compatible with sustained high confinement core in DIII-D and EAST
title: Achievements of actively controlled divertor detachment compatible with sustained high confinement core in DIII-D and EAST

description: This data set publishes the format or other specific information of the readable data of the main graphics in this paper.
description: This data set publishes the format or other specific information of the readable data of the main graphics in this paper.
DOI: 10.57760/sciencedb.04577
title: The surface emissivity spectra data set of the Dun Huang Radiometric Calibration Site observed by the portable Fourier transform infrared spectrometer (D&P 102F) and the infrared standard plate in August 2018.
title: 利用便携式傅里叶变换红外光谱仪和红外标准参考板在2018年8月测得的敦煌辐射校正场地表发射率光谱数据

description: In order to calibrate the infrared channel of space borne remote sensor and verify the authenticity of data products. In August 2018, we used the portable Fourier transform infrared spectrometer (D&P 102F) and an infrared standard plate to measure the surface emissivity spectra of the field at Dun Huang Radiometric Calibration Site for many times under different observation conditions. Based on the iteration spectrally smooth temperature and emissivity separation algorithm, the spectral emissivity and temperature of Dun Huang Radiometric Calibration Site were separated by setting the temperature difference interval with different precisions and performing multiple iteration smoothing analysis on the measured spectral data, and compared with the emissivity of CE312 channel obtained by multi-channel temperature and emissivity separation algorithm. 
description: In order to calibrate the infrared channel of space borne remote sensor and verify the authenticity of data products. In August 2018, we used the portable Fourier transform infrared spectrometer (D&P 102F) and an infrared standard plate to measure the surface emissivity spectra of the field at Dun Huang Radiometric Calibration Site for many times under different observation conditions. Based on the iteration spectrally smooth temperature and emissivity separation algorithm, the spectral emissivity and temperature of Dun Huang Radiometric Calibration Site were separated by setting the temperature difference interval with different precisions and performing multiple iteration smoothing analysis on the measured spectral data, and compared with the emissivity of CE312 channel obtained by multi-channel temperature and emissivity separation algorithm.
DOI: 10.57760/sciencedb.04580
title: Manufacturing and high heat ﬂux testing of ﬂat-type W/Cu/CuCrZr mock-up by HIP assisted brazing process
title: Manufacturing and high heat ﬂux testing of ﬂat-type W/Cu/CuCrZr mock-up by HIP assisted brazing process

description: 该论文的原始数据
description: 该论文的原始数据
DOI: 10.57760/sciencedb.04581
title: A compact electron beam ion trap in support of high-temperature plasma diagnostics based on conduction-cooled superconducting coils
title: A compact electron beam ion trap in support of high-temperature plasma diagnostics based on conduction-cooled superconducting coils

description: Spectroscopic diagnostics of future fusion reactor plasmas require information on impurity line emissions, especially for relevant high Z metal elements (e.g., tungsten). These materials will be widely used as plasma facing components for their high heat tolerance and low sputtering yield. Based on an electron beam ion trap, a compact impurity spectra platform is developed to mimic the high temperature environment of a fusion reactor. The proposed platform can deliver a focused e-beam at energies over 30 keV using a confining magnetic field of 1.0 T generated by two superconducting coils (NbTi). Cooled by a closed-loop cryocooler, the coils can avoid the usage of a complicated cryogenic system involving the handling of liquid helium. For spectroscopic studies of highly charged ions, a spherically curved crystal spectrometer is proposed to measure a wavelength range around 2–4 Å covering the typical wavelength range expected to be emitted by metal ions in a fusion plasma. This paper reports the design and development progress of the platform.
description: Spectroscopic diagnostics of future fusion reactor plasmas require information on impurity line emissions, especially for relevant high Z metal elements (e.g., tungsten). These materials will be widely used as plasma facing components for their high heat tolerance and low sputtering yield. Based on an electron beam ion trap, a compact impurity spectra platform is developed to mimic the high temperature environment of a fusion reactor. The proposed platform can deliver a focused e-beam at energies over 30 keV using a confining magnetic field of 1.0 T generated by two superconducting coils (NbTi). Cooled by a closed-loop cryocooler, the coils can avoid the usage of a complicated cryogenic system involving the handling of liquid helium. For spectroscopic studies of highly charged ions, a spherically curved crystal spectrometer is proposed to measure a wavelength range around 2–4 Å covering the typical wavelength range expected to be emitted by metal ions in a fusion plasma. This paper reports the design and development progress of the platform.
DOI: 10.57760/sciencedb.04582
title: MRI/NMR data during hydrate formation
title: MRI/NMR data during hydrate formation

description: This dataset includs the following data:MRI images of water-saturated samples (water saturation, Sw = 100%) and displaced by CO2 gas.Variations in NMR signal intensity during hydrate formation.Evolution of T2 distribution during CO2 hydrate formation.
description: This dataset includs the following data:MRI images of water-saturated samples (water saturation, Sw = 100%) and displaced by CO2 gas.Variations in NMR signal intensity during hydrate formation.Evolution of T2 distribution during CO2 hydrate formation.
DOI: 10.57760/sciencedb.04583
title: Conceptual design of impurity spectrum research platform based on intermediate energy electron beam ion trap
title: 基于中能段电子束离子阱的杂质光谱研究平台的概念设计

description: Radiation loss caused by impurities in tokamak plasmas, especially of those metal impurities, is one of the crucial factors restricting the further improvement of plasma performance. [Purpose] This study aims at the atomic spectroscopy of metal impurities on fusion reactors with a conceptual design of a compact impurity spectrum research platform based on intermediate energy electron beam ion trap. [Methods] The system design scheme for a compact medium-energy impurity spectra platform (MISP) using conduct cooling low temperature superconductor was presented. Then the COMSOL simulation software was employed to design and analyze the magnetic field, and the electron beam trajectory in the electron beam ion trap (EBIT) of MISP. The magnetic field calculation, inner electrode design, spectrometer design and other auxiliary system design of the electron beam ion trap were carried out. [Results] Simulation results show that uniform magnetic field intensity of 1.0 T in the center of EBIT drift tube can be achieved with appropriate design parameters, and the electron beam can be constrained in the drift tube. [Conclusions] This concept design can provide a reference for further engineering design.
description: Radiation loss caused by impurities in tokamak plasmas, especially of those metal impurities, is one of the crucial factors restricting the further improvement of plasma performance. [Purpose] This study aims at the atomic spectroscopy of metal impurities on fusion reactors with a conceptual design of a compact impurity spectrum research platform based on intermediate energy electron beam ion trap. [Methods] The system design scheme for a compact medium-energy impurity spectra platform (MISP) using conduct cooling low temperature superconductor was presented. Then the COMSOL simulation software was employed to design and analyze the magnetic field, and the electron beam trajectory in the electron beam ion trap (EBIT) of MISP. The magnetic field calculation, inner electrode design, spectrometer design and other auxiliary system design of the electron beam ion trap were carried out. [Results] Simulation results show that uniform magnetic field intensity of 1.0 T in the center of EBIT drift tube can be achieved with appropriate design parameters, and the electron beam can be constrained in the drift tube. [Conclusions] This concept design can provide a reference for further engineering design.
DOI: 10.57760/sciencedb.04601
title: Simulation data for Paper [Chen, J. L., et al. (2021). "Recent Progress in Modeling of CFETR Plasma Profiles from Core to Edge." Journal of Fusion Energy]
title: 论文原始模拟数据 [Chen, J. L., et al. (2021). "Recent Progress in Modeling of CFETR Plasma Profiles from Core to Edge." Journal of Fusion Energy]

description: This dataset contains the data within integrated modeling framework OMFIT and that obtained by SOLPS simulation for the paper [Chen, J. L., et al. (2021). "Recent Progress in Modeling of CFETR Plasma Profiles from Core to Edge." Journal of Fusion Energy 40(1): 1-11.]
description: This dataset contains the data within integrated modeling framework OMFIT and that obtained by SOLPS simulation for the paper [Chen, J. L., et al. (2021). "Recent Progress in Modeling of CFETR Plasma Profiles from Core to Edge." Journal of Fusion Energy 40(1): 1-11.]
DOI: 10.57760/sciencedb.04585
title: Dual fiber ring network structure
title: 双光纤环网结构架构

description: This is shown in Figure 1. After functional classification and division, each subsystem is connected end to end to form the optical fiber double ring network topology. Each system converts electrical signals to optical signals through the Siemens photoelectric conversion module, and the optical signals are converted to electrical signals after entering the environment with relatively good working conditions, so as to achieve high-quality signal transmission.
description: This is shown in Figure 1. After functional classification and division, each subsystem is connected end to end to form the optical fiber double ring network topology. Each system converts electrical signals to optical signals through the Siemens photoelectric conversion module, and the optical signals are converted to electrical signals after entering the environment with relatively good working conditions, so as to achieve high-quality signal transmission.
DOI: 10.57760/sciencedb.04597
title: off-axis sawteeth, double tearing modes, Alfven waves and thermal pressure gradient related instabilities
title: off-axis sawteeth, double tearing modes, Alfven waves and thermal pressure gradient related instabilities

description: The off-axis sawteeth (OAS) is triggered by the magnetic reconnection of double tearing modes (DTM), and series of Alfven waves are observed during the oscillation of OAS. The existence of OAS is an important pleatau for investigating the relationship between the energetic ions and Alfven waves. The internal transport barriers (ITBs) are easily established when the oscillation of OAS or DTM is suppressed.
description: The off-axis sawteeth (OAS) is triggered by the magnetic reconnection of double tearing modes (DTM), and series of Alfven waves are observed during the oscillation of OAS. The existence of OAS is an important pleatau for investigating the relationship between the energetic ions and Alfven waves. The internal transport barriers (ITBs) are easily established when the oscillation of OAS or DTM is suppressed.
DOI: 10.57760/sciencedb.04592
title: Results of electromagnetic force calculation
title: 电磁力计算结果

description: All original model screenshots, finite element model screenshots and original pictures of calculation results in this paper 
description: All original model screenshots, finite element model screenshots and original pictures of calculation results in this paper
DOI: 10.57760/sciencedb.04609
title: Measurement of tungsten impurity spectra with a two-crystal X-ray crystal spectrometer on EAST
title: Measurement of tungsten impurity spectra with a two-crystal X-ray crystal spectrometer on EAST

description: Spectral measurement of tungsten (W) impurity is essential to study impurity transport. Therefore, an X-ray crystal spectrometer (XCS) on EAST was used to measure the line spectra from highly ionized W ions. On EAST, both poloidal XCS and tangential XCS have been developed to measure the plasma temperature as well as the rotation velocity. Recently, He-like and H-like argon spectra have also been obtained using a two-crystal setup. W lines are identified in this study. Through a careful analysis, the W lines of 3.9336, 3.9321, and 3.664 Å are found to be diffracted by He-like or H-like crystals. The lines are confirmed with the NIST database. We also calculated the ion temperature with Doppler broadening of these lines. The ion temperature from the W lines is entirely consistent with that from Ar line spectra. The measurement of these W line spectra could be used to study W impurity transport in future work.
description: Spectral measurement of tungsten (W) impurity is essential to study impurity transport. Therefore, an X-ray crystal spectrometer (XCS) on EAST was used to measure the line spectra from highly ionized W ions. On EAST, both poloidal XCS and tangential XCS have been developed to measure the plasma temperature as well as the rotation velocity. Recently, He-like and H-like argon spectra have also been obtained using a two-crystal setup. W lines are identified in this study. Through a careful analysis, the W lines of 3.9336, 3.9321, and 3.664 Å are found to be diffracted by He-like or H-like crystals. The lines are confirmed with the NIST database. We also calculated the ion temperature with Doppler broadening of these lines. The ion temperature from the W lines is entirely consistent with that from Ar line spectra. The measurement of these W line spectra could be used to study W impurity transport in future work.
DOI: 10.57760/sciencedb.04595
title: Fishbone Oscillations in the Experimental Advanced Superconductivity Tokamak
title: EAST托卡马克装置上鱼骨模相关数据

description: The data figures of paper with tilte 'Fishbone Oscillations in theExperimental Advanced Superconductivity Tokamak ', published in Journal of the Korean Pyscial Society, with 72 (6) 2018, 669-675.
description: The data figures of paper with tilte 'Fishbone Oscillations in theExperimental Advanced Superconductivity Tokamak ', published in Journal of the Korean Pyscial Society, with 72 (6) 2018, 669-675.
DOI: 10.57760/sciencedb.04606
title: Observation of helical m/n = 1/1 saturated steady mode in EAST pure electron heating scenario with q0&lt;1
title: EAST芯部MHD实验和模拟论文相关数据

description: The data figures of papers Nucl. Fusion 60 (2020) 106027和Phys. Scr. 95 (2020) 055603 in EAST tokamak.
description: The data figures of papers Nucl. Fusion 60 (2020) 106027和Phys. Scr. 95 (2020) 055603 in EAST tokamak.
DOI: 10.57760/sciencedb.04610
title: AE mode in EAST NBI plasma
title: EAST上TAE模拟和实验论文相关数据

description: The data plot of AEs mode in EAST of paper: Nucl. Fusion 61 (2021) 076005.
description: The data plot of AEs mode in EAST of paper: Nucl. Fusion 61 (2021) 076005.
DOI: 10.57760/sciencedb.04615
title: Files about results of gas chromatography and project of Design Expert 10
title: 气相色谱结果文件及Design Expert 10工程文件

description: The data set includes the spectrum of the fermentation products by gas chromatography and the engineering documents for data processing using Design Expert 10 
description: The data set includes the spectrum of the fermentation products by gas chromatography and the engineering documents for data processing using Design Expert 10
DOI: 10.57760/sciencedb.04617
title: Study on improvement of injection power for EAST-NBI
title: EAST-NBI注入功率优化研究

description: In order to meet experimental requirements on high parameter plasma research, the injected power of counter injector is expected to increase at a fixed beam energy of 50keV for deuterium neutral beam. Three candidate schemes are compared to assess the possibilities of raising the injection power. Consider safety and economic factors，raising the electric field in the first gap is employed by adjusting the voltage gradient on the accelerator. The experiments show that the optimum perveance is increased from 2.2μP to 2.7μP by changing of gradient grid voltage from 0.84Vacc to 0.78Vacc. The ion beam power is promoted by about 50% at 3.0μP. But, beam transmission efficiency decreased to 60 % at 3.0μP. Thus, the injection power is boosted about 25%. 
description: In order to meet experimental requirements on high parameter plasma research, the injected power of counter injector is expected to increase at a fixed beam energy of 50keV for deuterium neutral beam. Three candidate schemes are compared to assess the possibilities of raising the injection power. Consider safety and economic factors，raising the electric field in the first gap is employed by adjusting the voltage gradient on the accelerator. The experiments show that the optimum perveance is increased from 2.2μP to 2.7μP by changing of gradient grid voltage from 0.84Vacc to 0.78Vacc. The ion beam power is promoted by about 50% at 3.0μP. But, beam transmission efficiency decreased to 60 % at 3.0μP. Thus, the injection power is boosted about 25%.
DOI: 10.57760/sciencedb.04627
title: Organic carbon availability limiting microbial denitrification in the deep vadose zone
title: 可利用性有机碳限制了深层微生物反硝化作用

description: Microbes in the deep vadose zone play an essential role in the mitigation of nitrate leaching; however, limited information is available on the mechanisms of microbial denitrification due to sampling difficulties. We experimentally studied the factors that affect denitrification in soils collected down to 10.5 meters deep along the soil profile. After an anoxic preincubation, denitrification rates moderately increased and the N 2 O/(N 2 O1N 2 ) ratios declined while the microbial abundance and diversity did not change significantly in most of the layers. Denitrificationrate was significantly enhanced and the abundance of the denitrification genes was simultaneously elevated by the increased availability of organic carbon in all studied layers, to a greater extent in the subsurface layers than in the surface layers, suggesting the severe scarcity of carbon in the deep vadose zone. The genera Pseudomonas and Bacillus, which are made up of a number of species that have been previously identified as denitrifiers in soil, were the major taxa that respond to carbon addition. Overall, our results suggested that the limited denitrification in the deep vadose zone is not because of the lack of denitrifiers, but due to the low abundance of denitrifiers which is caused by low carbon availability.
description: Microbes in the deep vadose zone play an essential role in the mitigation of nitrate leaching; however, limited information is available on the mechanisms of microbial denitrification due to sampling difficulties. We experimentally studied the factors that affect denitrification in soils collected down to 10.5 meters deep along the soil profile. After an anoxic preincubation, denitrification rates moderately increased and the N 2 O/(N 2 O1N 2 ) ratios declined while the microbial abundance and diversity did not change significantly in most of the layers. Denitrificationrate was significantly enhanced and the abundance of the denitrification genes was simultaneously elevated by the increased availability of organic carbon in all studied layers, to a greater extent in the subsurface layers than in the surface layers, suggesting the severe scarcity of carbon in the deep vadose zone. The genera Pseudomonas and Bacillus, which are made up of a number of species that have been previously identified as denitrifiers in soil, were the major taxa that respond to carbon addition. Overall, our results suggested that the limited denitrification in the deep vadose zone is not because of the lack of denitrifiers, but due to the low abundance of denitrifiers which is caused by low carbon availability.