cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57760/sciencedb.05134
title: Experimental study of quasi-coherent mode using EAST tangential CO2 laser collective scattering diagnostic in far-forward mode
title: 利用EAST装置CO2激光远前向相干散射模式实验研究准相干模

description: A quasi-coherent mode (QCM) was measured by the tangential CO2 laser collective scattering diagnostic at high plasma electron density during both enhanced Da/small edge-localized mode (ELM) and ELM-free H mode phases in Experimental Advanced Superconducting Tokamak (EAST). Experimental results from only local oscillator CO2 laser scattering prove that the QCM is measured by the scattering diagnostic in the far-forward mode. The driven QCM density fluctuation (k&lt; 3 cm-1) and magnetic fluctuation suggest that the QCM is an electromagnetic mode. The typical frequency of the QCM is f≈26.5 kHz. A combination analysis of scattering signals and Mirnov signals suggests that the QCM has toroidal mode number n≈17 and rotates along with the electron diamagnetic drift velocity direction in the lab frame. The analysis of Mirnov and reflectometer signals supports thatthe QCM locates in the edge pedestal region. The QCM power has been found to be related to both the Da signal and the pedestal density gradient. A comparison of the EAST QCM and C-Mod quasi-coherent mode has been given in detail.
description: A quasi-coherent mode (QCM) was measured by the tangential CO2 laser collective scattering diagnostic at high plasma electron density during both enhanced Da/small edge-localized mode (ELM) and ELM-free H mode phases in Experimental Advanced Superconducting Tokamak (EAST). Experimental results from only local oscillator CO2 laser scattering prove that the QCM is measured by the scattering diagnostic in the far-forward mode. The driven QCM density fluctuation (k&lt; 3 cm-1) and magnetic fluctuation suggest that the QCM is an electromagnetic mode. The typical frequency of the QCM is f≈26.5 kHz. A combination analysis of scattering signals and Mirnov signals suggests that the QCM has toroidal mode number n≈17 and rotates along with the electron diamagnetic drift velocity direction in the lab frame. The analysis of Mirnov and reflectometer signals supports thatthe QCM locates in the edge pedestal region. The QCM power has been found to be related to both the Da signal and the pedestal density gradient. A comparison of the EAST QCM and C-Mod quasi-coherent mode has been given in detail.
DOI: 10.57760/sciencedb.05118
title: Promising High-Confinement Regime for Steady-State Fusion
title: Promising High-Confinement Regime for Steady-State Fusion

description: A reproducible stationary high-confinement regime with small “edge-localized modes” (ELMs) has beenachieved recently in the Experimental Advanced Superconducting Tokamak, which has a metal wall and lowplasma rotation as projected for a fusion reactor. We have uncovered that this small ELM regime is enabled bya wide edge transport barrier (pedestal) with a low density gradient and a high density ratio between thepedestal foot and top. Nonlinear simulations reveal, for the first time, that the underlying mechanism for theobserved small ELM crashes is the upper movement of the peeling boundary induced by an initial radiallylocalized collapse in the pedestal, which stops the growth of instabilities and further collapse of the pedestal,thus providing a physics basis for mitigating ELMs in future steady-state fusion reactors.
description: A reproducible stationary high-confinement regime with small “edge-localized modes” (ELMs) has beenachieved recently in the Experimental Advanced Superconducting Tokamak, which has a metal wall and lowplasma rotation as projected for a fusion reactor. We have uncovered that this small ELM regime is enabled bya wide edge transport barrier (pedestal) with a low density gradient and a high density ratio between thepedestal foot and top. Nonlinear simulations reveal, for the first time, that the underlying mechanism for theobserved small ELM crashes is the upper movement of the peeling boundary induced by an initial radiallylocalized collapse in the pedestal, which stops the growth of instabilities and further collapse of the pedestal,thus providing a physics basis for mitigating ELMs in future steady-state fusion reactors.
DOI: 10.57760/sciencedb.05121
title: Properties of Toroidal Field Nb3Sn Strands Made for the ITER Chinese Domestic Agency
title: Properties of Toroidal Field Nb3Sn Strands Made for the ITER Chinese Domestic Agency

description: China was responsible for supplying 7.5% of ITER toroidal field (TF) Nb3 Sn conductors. It has delivered all the required conductors unit lengths and fulfilled the TF conductor package. The conductor package delivery consisted of four phases, in terms of phase I (call for tender), II (qualification process), III (pre-production process), and IV (production process). This paper focuses on work from phases II to IV. The Superconducting Strand Test Laboratory of the Institute of Plasma Physics Chinese Academy of Sciences (ASIPP) was the reference laboratory of the Chinese Domestic Agency and undertook the task of Nb3 Sn strands verification based on the requirements of ITER procurement arrangements. The verification results showed that the strands properties fulfill ITER specifications. In addition, in order to know well the strand properties and supply essential data for conductors’ performance prediction and analysis, the mechanical properties and critical current Ic as a function of axial strain, temperature, and magnetic field for the TF strands have been tested and summarized
description: China was responsible for supplying 7.5% of ITER toroidal field (TF) Nb3 Sn conductors. It has delivered all the required conductors unit lengths and fulfilled the TF conductor package. The conductor package delivery consisted of four phases, in terms of phase I (call for tender), II (qualification process), III (pre-production process), and IV (production process). This paper focuses on work from phases II to IV. The Superconducting Strand Test Laboratory of the Institute of Plasma Physics Chinese Academy of Sciences (ASIPP) was the reference laboratory of the Chinese Domestic Agency and undertook the task of Nb3 Sn strands verification based on the requirements of ITER procurement arrangements. The verification results showed that the strands properties fulfill ITER specifications. In addition, in order to know well the strand properties and supply essential data for conductors’ performance prediction and analysis, the mechanical properties and critical current Ic as a function of axial strain, temperature, and magnetic field for the TF strands have been tested and summarized
DOI: 10.57760/sciencedb.05123
title: Indentation effects on strain sensitivity of critical current for internal-tin Nb3Sn strand
title: Indentation effects on strain sensitivity of critical current for internal-tin Nb3Sn strand

description: The cable-in-conduit conductor (CICC) technology has been widely used in large scale superconducting magnet. The Short-Twist-Pitch (STP) design was aimed to avoid the conductor degradation during electromagnetic and thermal cycling. But manufacture of STP CICC deforms the cabled strands significantly. Indentations appear on superconducting strands after cabling and compaction. The conductor used for China Fusion Engineering Test Reactor (CFETR) magnet will be subjected to much higher Lorentz force than ITER. The STP CICC will be the first choice for the conductor design, since it showed no observed current sharing temperature Tcs degradation after electromagnetic cycling. In order to estimate the effects of indentation on the superconducting and mechanical properties of Nb3Sn strands, series measurements have been done on an internal-tin (IT) Nb3Sn strand, fabricated by Western Superconducting Technologies Co., Ltd (WST). The strand was artificially indented and cut to several sections for different kinds of measurements, which mainly included the critical current Ic versus axial strain measurements with Pacman device and stress-strain tests. The results show that the indentation has less impact on Ic, but more impact on mechanical performance. The sample preparation, test results and analysis have been described in details.
description: The cable-in-conduit conductor (CICC) technology has been widely used in large scale superconducting magnet. The Short-Twist-Pitch (STP) design was aimed to avoid the conductor degradation during electromagnetic and thermal cycling. But manufacture of STP CICC deforms the cabled strands significantly. Indentations appear on superconducting strands after cabling and compaction. The conductor used for China Fusion Engineering Test Reactor (CFETR) magnet will be subjected to much higher Lorentz force than ITER. The STP CICC will be the first choice for the conductor design, since it showed no observed current sharing temperature Tcs degradation after electromagnetic cycling. In order to estimate the effects of indentation on the superconducting and mechanical properties of Nb3Sn strands, series measurements have been done on an internal-tin (IT) Nb3Sn strand, fabricated by Western Superconducting Technologies Co., Ltd (WST). The strand was artificially indented and cut to several sections for different kinds of measurements, which mainly included the critical current Ic versus axial strain measurements with Pacman device and stress-strain tests. The results show that the indentation has less impact on Ic, but more impact on mechanical performance. The sample preparation, test results and analysis have been described in details.
DOI: 10.57760/sciencedb.05125
title: Experimental Study on Bi-2212 Cable-in-Conduit Conductor
title: Experimental Study on Bi-2212 Cable-in-Conduit Conductor

description: With very high upper critical magnetic field (Hc 2 ) and critical current density (Jc ), Bi2 Sr2CaCu2Ox (Bi-2212) is one of the most promising materials for high-field applications. Experimental research on Bi-2212 cable-in-conduit conductor (CICC) is now carried out at the Institute of Plasma Physics, Chinese Academy of Sciences. High pressure heat treatment process was adopted to improve the performance of Bi-2212 wires and CICC. The Bi-2212 CICC sample was heat treated with high pressure of 50 atm and tested in liquid helium (LHe). In this paper, the manufacturing procedures and test method of Bi-2212 CICC sample are described in detail. The performance of Bi-2212 CICC was evaluated by the critical current of strands and performance comparison was made between the Bi-2212 CICC samples with different heat treatment pressure. The test results showed that there was only about 5% degradation with respect to single wire critical current data and the conductor critical current was increased by 102% with 50 atm overpressure processing.
description: With very high upper critical magnetic field (Hc 2 ) and critical current density (Jc ), Bi2 Sr2CaCu2Ox (Bi-2212) is one of the most promising materials for high-field applications. Experimental research on Bi-2212 cable-in-conduit conductor (CICC) is now carried out at the Institute of Plasma Physics, Chinese Academy of Sciences. High pressure heat treatment process was adopted to improve the performance of Bi-2212 wires and CICC. The Bi-2212 CICC sample was heat treated with high pressure of 50 atm and tested in liquid helium (LHe). In this paper, the manufacturing procedures and test method of Bi-2212 CICC sample are described in detail. The performance of Bi-2212 CICC was evaluated by the critical current of strands and performance comparison was made between the Bi-2212 CICC samples with different heat treatment pressure. The test results showed that there was only about 5% degradation with respect to single wire critical current data and the conductor critical current was increased by 102% with 50 atm overpressure processing.
DOI: 10.57760/sciencedb.05128
title: Monte Carlo orbit-following simulations including the finite Larmor radius effect based on a phase-space coordinate transform method
title: Monte Carlo orbit-following simulations including the finite Larmor radius effect based on a phase-space coordinate transform method

description: data of "Monte Carlo orbit-following simulations including the finite Larmor radius effect based on a phase-space coordinate transform method"
description: data of "Monte Carlo orbit-following simulations including the finite Larmor radius effect based on a phase-space coordinate transform method"
DOI: 10.57760/sciencedb.05133
title: Numerical Simulations of NBI Fast Ion Loss with RMPs on the EAST Tokamak
title: Numerical Simulations of NBI Fast Ion Loss with RMPs on the EAST Tokamak

description: data of "Numerical Simulations of NBI Fast Ion Loss with RMPs on the EAST Tokamak"
description: data of "Numerical Simulations of NBI Fast Ion Loss with RMPs on the EAST Tokamak"
DOI: 10.57760/sciencedb.05136
title: Magnetoresistance of cryogenic linear temperature sensor
title: Magnetoresistance of cryogenic linear temperature sensor

description: The 40 T hybrid magnet was developed at High Magnetic Field Laboratory, Chinese Academic of Science, it is composed of 30 T resistive magnet insert and 10 T superconducting outsert which is cooled with forced flow of supercritical helium at 4.5 K supplied by cold box and valve box. The gaseous helium temperatures in valve box are measured by CLTS (Cryogenic linear temperature sensor). This paper presents the characteristics of CLTS, reports the magnetoresistance of the CLTS which is 5.8 m away from 40 T hybrid magnet centre when the 10 T superconducting outsert was in the field of excitation, and CLTS resistance offset for remanent magnetization. CLTS was not influenced by resistive magnet because of the small stray field of hybrid magnet 30 T resistive magnet.
description: The 40 T hybrid magnet was developed at High Magnetic Field Laboratory, Chinese Academic of Science, it is composed of 30 T resistive magnet insert and 10 T superconducting outsert which is cooled with forced flow of supercritical helium at 4.5 K supplied by cold box and valve box. The gaseous helium temperatures in valve box are measured by CLTS (Cryogenic linear temperature sensor). This paper presents the characteristics of CLTS, reports the magnetoresistance of the CLTS which is 5.8 m away from 40 T hybrid magnet centre when the 10 T superconducting outsert was in the field of excitation, and CLTS resistance offset for remanent magnetization. CLTS was not influenced by resistive magnet because of the small stray field of hybrid magnet 30 T resistive magnet.
DOI: 10.57760/sciencedb.05138
title: CFETR CS model coil parameters
title: CFETR CS 模型线圈设计参数

description: The main design parameters of the CFETR CS model coil, include the dimension of the superconducting conductor, the insulation dimension between the conductor turns, the ground insulation dimension, the number of turns of the coil, the dimension of the coil and the magnetic field. The magnetic field is calculated by ANSYS software.
description: The main design parameters of the CFETR CS model coil, include the dimension of the superconducting conductor, the insulation dimension between the conductor turns, the ground insulation dimension, the number of turns of the coil, the dimension of the coil and the magnetic field. The magnetic field is calculated by ANSYS software.
DOI: 10.57760/sciencedb.05140
title: Experimental study of the effect of 2/1 classical tearing mode on (intermediate, small)-scale microturbulence in the core of an EAST L mode plasma
title: 实验研究EAST装置L模等离子体芯部2/1经典撕裂模对中高波数湍流的影响

description: In this paper, we report an experimental study of the effect of a m/n=−2/−1 (m, n being poloidal and toroidal mode number, separately) classical tearing mode on (intermediate, small)-scale microturbulence (see the definition in section 1) in the core of an EAST L mode plasma discharge. The microturbulence at different scales k⊥=10, 18 and 26 cm−1 (i.e., k^r ~ 2 i , 3.6 and 5.2, respectively. Here, ri is the ion gyroradius and k⊥ is the perpendicular wavenumber) were measured simultaneously by the EAST multi-channel tangential CO2 laser collective scattering diagnostics. Experimental results confirm that the decrease of microturbulent Doppler shift ( fDoppler = kt vt 2p), inversely correlated to the increase of microturbulent mean frequency (defined in equation (1)), is due to the 2/1 tearing mode. Temporal evolution of frequencyintegrated spectral power Stot of microturbulence, found to be correlated with the width of 2/1 magnetic island, suggests the modulation effect on microturbulence by the tearing mode beyond Doppler shift effect. Modulation effects on microturbulence by the tearing mode are further demonstrated by the correlation between microturbulent envelope and magnetic fluctuations.
description: In this paper, we report an experimental study of the effect of a m/n=−2/−1 (m, n being poloidal and toroidal mode number, separately) classical tearing mode on (intermediate, small)-scale microturbulence (see the definition in section 1) in the core of an EAST L mode plasma discharge. The microturbulence at different scales k⊥=10, 18 and 26 cm−1 (i.e., k^r ~ 2 i , 3.6 and 5.2, respectively. Here, ri is the ion gyroradius and k⊥ is the perpendicular wavenumber) were measured simultaneously by the EAST multi-channel tangential CO2 laser collective scattering diagnostics. Experimental results confirm that the decrease of microturbulent Doppler shift ( fDoppler = kt vt 2p), inversely correlated to the increase of microturbulent mean frequency (defined in equation (1)), is due to the 2/1 tearing mode. Temporal evolution of frequencyintegrated spectral power Stot of microturbulence, found to be correlated with the width of 2/1 magnetic island, suggests the modulation effect on microturbulence by the tearing mode beyond Doppler shift effect. Modulation effects on microturbulence by the tearing mode are further demonstrated by the correlation between microturbulent envelope and magnetic fluctuations.
DOI: 10.57760/sciencedb.05142
title: Data on Plasma Sci. Technol. 23 (2021) 095101
title: Data on Plasma Sci. Technol. 23 (2021) 095101

description: This dataset contains key data in the published paper Plasma Sci. Technol. 23 (2021) 095101.
description: This dataset contains key data in the published paper Plasma Sci. Technol. 23 (2021) 095101.
DOI: 10.57760/sciencedb.05146
title: CFETR CS model coil detailed design data
title: CFETR CS模型线圈详细设计数据

description: ANSYS software was used to analyze and calculate the stress of CFETR CS model coil preload structure under various working conditions. At the same time, the electromagnetic force of the jumper leads of the coil is calculated, and the magnitude of the electromagnetic force of each section is obtained, and the stress of each jumper lead and the support of the lead is evaluated.
description: ANSYS software was used to analyze and calculate the stress of CFETR CS model coil preload structure under various working conditions. At the same time, the electromagnetic force of the jumper leads of the coil is calculated, and the magnitude of the electromagnetic force of each section is obtained, and the stress of each jumper lead and the support of the lead is evaluated.
DOI: 10.57760/sciencedb.05148
title: Design Data Set of Controlled Shear Force Microchannel
title: Design Data Set of Controlled Shear Force Microchannel

description: A micro channel design data set with controllable shear force, including original design data, flow field simulation data in the micro channel and PIV verification data.
description: A micro channel design data set with controllable shear force, including original design data, flow field simulation data in the micro channel and PIV verification data.
DOI: 10.57760/sciencedb.05153
title: 2018_ChaowenCHEN_CEJ
title: 2018_ChaowenCHEN_CEJ

description: Fabrication of light-responsively controlled-release herbicide using a nanocomposite
description: Fabrication of light-responsively controlled-release herbicide using a nanocomposite
DOI: 10.57760/sciencedb.05154
title: Experimental identification of nonlinear coupling between (intermediate, small)-scale microturbulence and an MHD mode in the core of a superconducting tokamak
title: 实验鉴定超导托卡马克芯部中小尺度湍流与MHD的非线性耦合

description: In this paper, we present clear experimental evidence of core region nonlinear coupling between (intermediate, small)-scale microturbulence and an magnetohydrodynamics (MHD) mode during the current ramp-down phase in a set of L-mode plasma discharges in the experimental advanced superconducting tokamak (EAST, Wan et al (2006 Plasma Sci. Technol. 8 253)). Density fluctuations of broadband microturbulence (krho_i~ 2−5.2) and the MHD mode (toroidal mode number m = −1, poloidal mode number n = 1) are measured simultaneously, using a four-channel tangential CO2 laser collective scattering diagnostic in core plasmas. The nonlinear coupling between the broadband microturbulence and the MHD mode is directly demonstrated by showing a statistically significant bicoherence and modulation of turbulent density fluctuation amplitude by the MHD mode.
description: In this paper, we present clear experimental evidence of core region nonlinear coupling between (intermediate, small)-scale microturbulence and an magnetohydrodynamics (MHD) mode during the current ramp-down phase in a set of L-mode plasma discharges in the experimental advanced superconducting tokamak (EAST, Wan et al (2006 Plasma Sci. Technol. 8 253)). Density fluctuations of broadband microturbulence (krho_i~ 2−5.2) and the MHD mode (toroidal mode number m = −1, poloidal mode number n = 1) are measured simultaneously, using a four-channel tangential CO2 laser collective scattering diagnostic in core plasmas. The nonlinear coupling between the broadband microturbulence and the MHD mode is directly demonstrated by showing a statistically significant bicoherence and modulation of turbulent density fluctuation amplitude by the MHD mode.
DOI: 10.57760/sciencedb.05157
title: 2018_DongfangWANG_ACS AMI
title: 2018_DongfangWANG_ACS AMI

description: Sandwich-like Nanosystem for Simultaneous Removal of Cr(VI) and Cd(II) from Water and Soil
description: Sandwich-like Nanosystem for Simultaneous Removal of Cr(VI) and Cd(II) from Water and Soil
DOI: 10.57760/sciencedb.05161
title: 2021_BinLIU_J. Agric. Food Chem
title: 2021_BinLIU_J. Agric. Food Chem

description: Infrared-Light-Responsive Controlled-Release Pesticide Using Hollow Carbon Microspheres@Polyethylene Glycol/α-Cyclodextrin Gel
description: Infrared-Light-Responsive Controlled-Release Pesticide Using Hollow Carbon Microspheres@Polyethylene Glycol/α-Cyclodextrin Gel
DOI: 10.57760/sciencedb.05162
title: Linear gyrokinetic simulations of zonal flows in toroidal rotating plasmas
title: 托卡马克中等离子体环向转动对带状流影响的线性模拟数据集

description: In 2019, linear gyrokinetic simulations of zonal flows in toroidal rotating plasmas:Linear Landau damped evolution of zonal flow over timeThe variation of the dispersion relation of zonal flow with Tokamak safety factor q without toroidal rotationVariation of zonal flow dispersion with toroidal rotational Mach number under different reverse aspect ratiosTrapped-passing boundary in phase space with different toroidal Mach numbers.The dependence of the cos h component of GAM on toroidal Mach number M for different kρi values
description: In 2019, linear gyrokinetic simulations of zonal flows in toroidal rotating plasmas:Linear Landau damped evolution of zonal flow over timeThe variation of the dispersion relation of zonal flow with Tokamak safety factor q without toroidal rotationVariation of zonal flow dispersion with toroidal rotational Mach number under different reverse aspect ratiosTrapped-passing boundary in phase space with different toroidal Mach numbers.The dependence of the cos h component of GAM on toroidal Mach number M for different kρi values