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Drift wave instabilities (DWI) associated with the two-fluid dynamics seems to be responsible for anomalous transport in modern day tokamaks. Ballooning instabilities tend to exchange flux tubes of different pressure, resulting in convective transport. The mic…
pubmed
Rehman U, Ali A, Mahmood S
2021
置信度 0.82
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This paper presents the measurement of the bidirectional reflectance distribution function of tungsten (W) samples and the resulting reflection models in the nuclear fusion device WEST (tokamak). For this, an experimental gonio-spectrophotometer was developed …
pubmed
Ben Yaala M, Aumeunier MH, Steiner R, Schönenberger M 等
2021 Sep 1
置信度 0.82
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Plasma electron density is one of the most fundamental parameters when studying tokamak plasma physics, which is widely used in plasma control systems and plasma physics analyses. A hydrogen cyanide laser interferometer is generally applied to measure the plas…
pubmed
Shu S, Lai J, Chen Z, Wang Y 等
2021 Sep 1
置信度 0.82
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An innovative tangential-view soft x-ray (SXR) tomographic imaging measurement was developed on the TS-6 spherical tokamak merging device as a key diagnostic for investigating the mechanism of electron acceleration. In order to measure SXR with different energ…
pubmed
Xiang J, Takeda S, Cai Y, Tanabe H 等
2021 Aug 1
置信度 0.82
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Dynamics of fast transient events are challenging to be analyzed with high time resolution. Such events can occur in fusion plasmas such as the filaments during edge-localized modes (ELMs). In this paper, we present a robust method-the spatial displacement est…
pubmed
Lampert M, Diallo A, Zweben SJ
2021 Aug 1
置信度 0.82
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A solid state terahertz interferometer has been developed on the recent commissioned HL-2M tokamak. It can work in a wide frequency region of 220-325 GHz, and the terahertz wave is generated from a low frequency phase locked voltage controlled oscillator …
pubmed
Shi PW, Yang ZC, Shi ZB, Xu LF 等
2021 Aug 1
置信度 0.82
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A plasma radiation measurement system for a wide spectral range, based on compact Absolute eXtreme UltraViolet (AXUV) silicon photodiodes, has been implemented on the newly constructed ENN XuanLong-50 (EXL-50) spherical tokamak. The system consists of two 16-c…
pubmed
Dai LL, Zhu YB, Bai RH, Li Q 等
2021 Aug 1
置信度 0.82
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The Thomson scattering (TS) diagnostic, one of the key diagnostics used on the tokamaks around the world, is planned for the COMPASS-U tokamak, which is recently under design and construction in the Institute of Plasma Physics in Prague, Czech Republic. This t…
pubmed
Bohm P, Sos M, Bilkova P, Kral M 等
2021 Aug 1
置信度 0.82
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In tokamaks with tungsten-based plasma facing components, such as ITER, pollution of the plasma by heavy impurities is a major concern as it can lead to radiative breakdown. The radiation emitted by such impurities is mainly composed of x-rays in the [0.1; 100…
pubmed
Colette D, Mazon D, Barnsley R, O'Mullane M 等
2021 Aug 1
置信度 0.82
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In this study, time-dependent, one-dimensional modeling of a surface dielectric barrier discharge (SDBD) device, driven by a sinusoidal voltage of amplitude 1-3 kV at 20 kHz, in argon is described. An SDBD device with two Cu-stripe electrodes, covered by the q…
pubmed
Khan TM, Khan SU, Raffi M, Khan R
2021
置信度 0.82
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The stellarator as a concept of magnetic confinement fusion requires careful design to confine particles effectively. A design possibility is to equip the magnetic field with a property known as quasisymmetry. Though it is generally believed that a steady-stat…
pubmed
Rodríguez E, Bhattacharjee A
2021 Jul
置信度 0.82
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We report the experimental observation of seed magnetic island formation by nonlinear three-wave coupling of magnetic island triplets. In this experiment, disruptive 2,1 islands are seeded by the coupling of 4,3 and 3,2 tearing modes to a central 1,1 sawtooth …
pubmed
Bardóczi L, Logan NC, Strait EJ
2021 Jul 30
置信度 0.82
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Research on magnetic confinement of high-temperature plasmas has the ultimate goal of harnessing nuclear fusion for the production of electricity. Although the tokamak 1 is the leading toroidal magnetic-confinement concept, it is not without shortcomings and t…
pubmed
Beidler CD, Smith HM, Alonso A, Andreeva T 等
2021 Aug
置信度 0.82
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The vacuum ultraviolet (VUV) spectroscopy system on the Joint Texas Experimental Tokamak has been upgraded to achieve fast acquisition for the study of impurity transport in transient modulated experiments. In this upgrade, the previous high-energy charge-coup…
pubmed
Zhang XY, Qing WJ, Zhang XL, Jiao SD 等
2021 Jul 1
置信度 0.82
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A multi-energy soft x-ray pinhole camera has been designed, built, and deployed at the Madison Symmetric Torus to aid the study of particle and thermal transport, as well as MHD stability physics. This novel imaging diagnostic technique employs a pixelated x-r…
pubmed
Delgado-Aparicio LF, VanMeter P, Barbui T, Chellai O 等
2021 Jul 1
置信度 0.82
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Runaway electron populations seeded from the hot tail generated by the rapid cooling in plasma-terminating disruptions are a serious concern for next-step tokamak devices such as ITER. Here, we present a comprehensive treatment of the thermal quench, including…
pubmed
Svenningsson I, Embreus O, Hoppe M, Newton SL 等
2021 Jul 16
置信度 0.82
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A thermal ion driven bursting instability with rapid frequency chirping, considered as an Alfvénic ion temperature gradient mode, has been observed in plasmas having reactor-relevant temperature in the DIII-D tokamak. The modes are excited over a wide spa…
pubmed
Du XD, Hong RJ, Heidbrink WW, Jian X 等
2021 Jul 9
置信度 0.82
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The neutral particles generated by charge exchange reactions can play an important role in erosion of first wall materials in fusion devices. In order to measure the flux and energy of neutral particles to the first wall, a low-energy neutral particle analyzer…
pubmed
Liu NX, Mu L, Ding R, Zhu YB 等
2021 Jun 1
置信度 0.82
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A high-resolution spectroscopic diagnostic for the measurement of spatial profiles of impurity ion toroidal rotation velocities on the ADITYA-U tokamak has been upgraded to cover the complete plasma minor radius. Earlier, the coverage of diagnostics toward the…
pubmed
Shukla G, Chowdhuri MB, Shah K, Manchanda R 等
2021 Jun 1
置信度 0.82
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Divertor detachment and alternative divertor magnetic geometries are predicted to be promising approaches to handle the power exhaust of future fusion devices. In order to understand the detachment process caused by volumetric losses in alternative divertor ma…
pubmed
Feng X, Calcines A, Sharples RM, Lipschultz B 等
2021 Jun 1
置信度 0.82
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A combined Doppler backscattering/cross-polarization scattering (DBS/CPS) system is being deployed on MAST-U for simultaneous measurements of local density turbulence, turbulence flows, and magnetic turbulence. In this design, CPS shares the probing beam with …
pubmed
Hong R, Rhodes TL, Wang G, Peebles WA
2021 Jun 1
置信度 0.82
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Laser two-color scattering (TCS) is proposed to detect the neutral species in the edge of fusion devices, namely, tokamaks. TCS uses two wavelengths to probe both the laser Rayleigh scattering and Thomson scattering of the neutral-electron bath, with emphasis …
pubmed
Feng D, Diallo A, Shneider MN
2021 Jun 1
置信度 0.82
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An incoherent Thomson scattering diagnostic will be installed in the JT-60SA tokamak to measure electron temperature and electron density profiles. The target radial spatial resolution is 25 mm with 46 spatial channels. The accuracy in electron temperatur…
pubmed
Tojo H, Pasqualotto R, Fassina A, Giudicotti L 等
2021 Apr 1
置信度 0.82
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A novel compact spectrometer optimized for the measurement of hard x rays generated by runaway electrons is presented. The detector is designed to be installed in the fan-shaped collimator of the gamma-ray imager diagnostic at the DIII-D tokamak. The spectrome…
pubmed
Dal Molin A, Fumagalli L, Nocente M, Rigamonti D 等
2021 Apr 1
置信度 0.82
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Given spatially resolved measurements of normal and tangential components of the magnetic field just outside the surface of a magnetically confined plasma, the field at the measurement location can be uniquely decomposed into contributions from the plasma and …
pubmed
Strait EJ, Munaretto S, Sweeney RM, Logan NC 等
2021 Apr 1
置信度 0.82
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To efficiently determine the plasma electron density fluctuations using the MIR diagnostic technique, a 55-75 GHz 65 nm-CMOS transmitter has been developed where four separate intermediate frequency (IF) signals are up-converted, amplified, and then combi…
pubmed
Chen Y, Zhu Y, Yu JH, Ye Y 等
2021 Apr 1
置信度 0.82
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Neutron emission spectroscopy and neutron yield measurements are important for high neutral beam injection (NBI) power heating at the Experimental Advanced Superconducting Tokamak (EAST). The neutron yields mainly depend on the deposition from NBI to the deute…
pubmed
Yang DK, Zhang YM, Xiao M, Hu ZM 等
2021 Apr 1
置信度 0.82
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A detailed description of the construction and commissioning of the fast-moving reciprocating divertor Langmuir probe array on the Tokamak à Configuration Variable (TCV) is presented. A horizontal array of 24 Langmuir probes (12 Mach probes) combined with…
pubmed
De Oliveira H, Theiler C, Elaian H, TCV Team
2021 Apr 1
置信度 0.82
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A compact multi-energy soft x-ray diagnostic is being installed on the W Environment in Steady-state Tokamak (WEST), which was designed and built to test ITER-like tungsten plasma facing components in a long pulse (∼1000 s) scenario. The diagnostic cons…
pubmed
Chellai O, Delgado-Aparicio LF, VanMeter P, Barbui T 等
2021 Apr 1
置信度 0.82
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Microwave reflectometry diagnostics have been widely used to measure density profiles in fusion plasma. However, the high sensitivity of the diagnostics to plasma turbulence often results in large radial deviations in the edge density profile and causes diffic…
pubmed
Ye KX, Zhang T, Wang YM, Wen F 等
2021 Apr 1
置信度 0.82
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A compact neutron spectrometer based on the BC-501A liquid organic scintillator was applied to neutron measurements at the TUMAN-3M tokamak. The spectrometer was calibrated using measurements from the ion beam of the cyclotron accelerator. Neutron spectra were…
pubmed
Iliasova MV, Shevelev AE, Khilkevitch EM, Lebedev SV 等
2021 Apr 1
置信度 0.82
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The response and current-voltage (I-V) characteristics of irradiated and non-irradiated silicon photodiode arrays (SPDAs) for use in the International Thermonuclear Experimental Reactor camera are measured and compared. Irradiation experiments are carried out …
pubmed
Li C, Zhao J, Cao H, Hu L 等
2021 Apr 1
置信度 0.82
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A new divertor Thomson scattering system has been developed for the MAST-U tokamak. The diagnostic will produce electron density and temperature profiles along the Super-X strike leg. The existing polychromator design has been adapted for low temperature measu…
pubmed
Clark JG, Bowden MD, Scannell R
2021 Apr 1
置信度 0.82
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A correlation polarimeter-interferometer system has been developed for the DIII-D tokamak to detect small amplitude magnetic and density fluctuations. Two collinear, frequency-offset (5-15 MHz), orthogonally polarized (right- and left-handed, circularly p…
pubmed
Chen J, Brower D, Ding W, Yoneda R 等
2021 Apr 1
置信度 0.82
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A five-channel microwave interferometer with high temporal resolution and high phase resolution has been developed for measuring electron density profiles and fluctuations on the Sino-UNIted Spherical Tokamak. A correction algorithm, based on the low signal am…
pubmed
Su P, Zhong H, Tan Y, Gao Z 等
2021 Apr 1
置信度 0.82
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A machine learning approach has been implemented to measure the electron temperature directly from the emission spectra of a tokamak plasma. This approach utilized a neural network (NN) trained on a dataset of 1865 time slices from operation of the DIII-D toka…
pubmed
Samuell CM, Mclean AG, Johnson CA, Glass F 等
2021 Apr 1
置信度 0.82
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A bolometer/soft x-ray diagnostic based on modular absolute extreme ultraviolet photodiodes has been built to obtain the local emission profile of a poloidal cross section in Sino-UNIted Spherical Tokamak (SUNIST). The system consists of seven photodiode array…
pubmed
Yang M, Wang B, Tan Y, Gao Z
2021 Apr 1
置信度 0.82
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Sixteen new tangential views for the charge exchange recombination (CER) spectroscopy diagnostic at DIII-D were installed in 2019 on the high-field side (HFS) of the tokamak with the main goal being the measurement of main-ion (deuterium) poloidal rotation. Ei…
pubmed
Chrystal C, Haskey SR, Burrell KH, Grierson BA 等
2021 Apr 1
置信度 0.82
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Stray laser light is a serious problem that interrupts the measurement of electron temperature and density in Thomson scattering (TS) systems. This paper presents a ray-tracing simulation of stray laser light in HL-2M TS systems. A model including (i) a simpli…
pubmed
Liu CH, Huang Y, Hou ZP, Wang YQ 等
2021 Apr 1
置信度 0.82
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An Imaging Neutral Particle Analyzer (INPA) diagnostic has been designed for the ASDEX Upgrade (AUG) tokamak. The AUG INPA diagnostic will measure fast neutrals escaping the plasma after charge exchange reactions. The neutrals will be ionized by a 20 nm c…
pubmed
Rueda-Rueda J, García-Muñoz M, Viezzer E, Schneider PA 等
2021 Apr 1
置信度 0.82
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The cross-polarization scattering (CPS) system for magnetic fluctuation measurements in the Experimental Advanced Superconducting Tokamak (EAST) has been designed and installed. Different from the Doppler reflectometer (DR) system, the CPS system detects the p…
pubmed
Ji JX, Liu AD, Zhou C, Zhuang G 等
2021 Apr 1
置信度 0.82
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Turbulent electron temperature fluctuation measurement using a correlation electron cyclotron emission (CECE) radiometer has become an important diagnostic for studying energy transport in fusion plasmas, and its use is widespread in tokamaks (DIII-D, ASDEX Up…
pubmed
Wang G, Rhodes TL, Peebles WA
2021 Apr 1
置信度 0.82
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A tangential hard x-ray (HXR) diagnostic on the newly constructed ENN XuanLong-50 (EXL-50) spherical tokamak for fast electron emission studies is presented. The HXR detection system consists of a symmetrical CdZnTe semiconductor detector array with a spectral…
pubmed
Cheng SK, Zhu YB, Chen ZY, Li YX 等
2021 Apr 1
置信度 0.82
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Edge turbulence is important for plasma confinement, so the gas puffing imaging (GPI) diagnostic was proposed on the J-TEXT tokamak for the two-dimensional measurement of turbulence in the edge region. GPI is a diagnostic of plasma turbulence that uses a puff …
pubmed
Li F, Yang ZJ, Gao L, Fu CP
2021 Apr 1
置信度 0.82
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Stilbene crystal detectors are widely used as fast neutron measurement tools based on recoil proton detection, such as liquid scintillators. A compact stilbene crystal neutron spectrometer (CSCNS) has been installed at the Experimental Advanced Superconducting…
pubmed
Liao LY, Zhang YM, Hu ZM, Yang DK 等
2021 Apr 1
置信度 0.82
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The impurity radiation from the divertor region of the EAST tokamak is dominantly in the wavelength range of vacuum ultraviolet (VUV) due to the elevated edge electron temperature. A space-resolved VUV spectroscopy is developed to measure impurity radiation in…
pubmed
He L, Zhang HM, Lyu B, Shen YC 等
2021 Apr 1
置信度 0.82
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A toroidal soft x-ray array system for spectrum and intensity measurements on the EXL-50 spherical tokamak is described. Silicon drift detectors and digital multichannel analyzers are adopted for all 21 channels of the array, and an average energy resolution o…
pubmed
Huang XL, Zhang YP, Zhu YB, Li X 等
2021 May 1
置信度 0.82
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A time-of-flight neutron spectrometer based on the Time-Of-Flight Enhanced Diagnostic (TOFED) concept has been designed and is under development for the Large Helical Device (LHD). It will be the first advanced neutron spectrometer to measure the 2.45 MeV…
pubmed
Zhang Y, Ge L, Hu Z, Sun J 等
2021 May 1
置信度 0.82
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The plasma current density profile plays a key role in the development of a high poloidal beta scenario, which is essential for long-pulse and high-performance plasma operation on a tokamak. Based on the polarimetry technique, a Motional Stark Effect (MSE) dia…
pubmed
Liu DM, Yang XH, Fu J, Liu LC 等
2021 May 1
置信度 0.82
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An ultrafast charge exchange spectroscopy (UFCES) system has been designed for measuring fluctuations in ion temperature and toroidal rotation velocity. The UFCES on the KSTAR tokamak is a powerful tool for investigating plasma instabilities and long-wavelengt…
pubmed
Jang JY, Ko WH, Li Y, von Hellermann M 等
2021 May 1
置信度 0.82
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A poloidal array of scintillator-based Fast-Ion Loss Detectors (FILDs) has been installed in the ASDEX Upgrade (AUG) tokamak. While all AUG FILD systems are mounted on reciprocating arms driven externally by servomotors, the reciprocating system of the FILD pr…
pubmed
Gonzalez-Martin J, Garcia-Munoz M, Sieglin B, Herrmann A 等
2021 May 1
置信度 0.82
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This contribution presents a Thomson scattering module developed for the Raysect and Cherab framework. Detailed models of spectroscopic diagnostic systems can be created in the framework, which deliver synthetic data with high precision due to accurate physica…
pubmed
Tomes M, Carr M, Meakins A, Sos M 等
2021 May 1
置信度 0.82
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The work describes a novel approach to the design of a fast, multichannel measurement system for plasma diagnostics [A. Wojenski et al., Fusion Eng. Des. 123, 727 (2016)]. Its main scope is to provide measurements of soft X-ray (SXR) emission during plasma phe…
pubmed
Wojenski A, Linczuk P, Kasprowicz G, Poźniak KT 等
2021 May 1
置信度 0.82
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A new pseudolocal tomography algorithm is developed for soft X-ray(SXR) imaging measurements of the turbulent electron temperature fluctuations (δ T e ) in tokamaks and stellarators. The algorithm overcomes the constraints of limited viewing ports on the…
pubmed
Chen X, Ruiz JR, Howard NT, Guttenfelder W 等
2021 May 1
置信度 0.82
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The spectroscopic studies of medium and high Z impurities have been the subject of interest in fusion research due to their role in mitigating plasma disruption and reducing heat load on the plasma facing components. Line emissions from these impurities provid…
pubmed
Shah K, Ghosh J, Shukla G, Chowdhuri MB 等
2021 May 1
置信度 0.82
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A thin-foil infrared bolometer has been developed to measure the plasma radiation quantitatively during plasma disruptions in the KSTAR tokamak. We present analytic solutions of a 0D heat transfer model, which enable the estimation of the plasma radiation from…
pubmed
Lee MU, Thatipamula SG, Bae S, Kim J 等
2021 May 1
置信度 0.82
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In this paper, we used radio frequency (RF) full wave simulation to explore the feasibility of generating a density beat oscillation formed by high harmonic fast waves (HHFWs) in the National Spherical Tokamak Experiment-Upgrade (NSTX-U) and of measuring it nu…
pubmed
Rutherford G, Shiraiwa S, Smith DR, Bertelli N
2021 May 1
置信度 0.82
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Optimized operation of fusion devices demands detailed understanding of plasma transport, a problem that must be addressed with advances in both measurement and data analysis techniques. In this work, we adopt Bayesian inference methods to determine experiment…
pubmed
Sciortino F, Cao NM, Howard NT, Marmar ES 等
2021 May 1
置信度 0.82
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Monolithic, millimeter wave "system-on-chip" technology has been employed in chip heterodyne radiometers in a newly developed Electron Cyclotron Emission Imaging (ECEI) system on the DIII-D tokamak for 2D electron temperature and fluctuation diagnostics. The s…
pubmed
Zhu Y, Yu JH, Yu G, Ye Y 等
2021 May 1
置信度 0.82
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Heavy ion beam probe (HIBP) systems have been designed for the new tokamak, PLATO [A. Fujisawa, AIP Conf. Proc. 1993, 020011 (2018)]. The designs have been completed, and the installations are in progress. Two HIBPs are being installed in toroidal sections 180…
pubmed
Ido T, Fujisawa A, Takemura K, Kobayashi TK 等
2021 May 1
置信度 0.82
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Since the major/minor radius of the Sino-United Spherical Tokamak (SUNIST) is 0.3/0.23 m, respectively, the space left for magnetic diagnostics in the high field side (HFS) is quite limited. At the same time, a good signal-to-noise ratio and a high-freque…
pubmed
Cheng Z, Tan Y, Gao Z, Wang S 等
2021 May 1
置信度 0.82
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An upgraded detector and several optimizations have significantly improved the Ultra-Fast Charge Exchange Recombination Spectroscopy (UF-CHERS) diagnostic sensitivity to ion temperature and parallel velocity fluctuations at turbulence relevant spatio-temporal …
pubmed
Truong DD, McKee GR, Yan Z, Jaehnig K 等
2021 May 1
置信度 0.82
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We present an approach to construct structure-preserving emulators for Hamiltonian flow maps and Poincaré maps based directly on orbit data. Intended applications are in moderate-dimensional systems, in particular, long-term tracing of fast charged partic…
pubmed
Rath K, Albert CG, Bischl B, von Toussaint U
2021 May
置信度 0.82
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Magnetic confinement nuclear fusion is an important way to realize controllable nuclear fusion. Due to the large current and complicated coil arrangement, there is a complicated electromagnetic environment around the fusion device. In this paper, the B-dot sen…
pubmed
Zhang M, Jiang Y, Xu Z, Wang S 等
2021 Aug 2
置信度 0.82
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The pedestal of H-mode tokamaks displays strong magnetic fluctuations correlated with the evolution of the electron temperature. The microtearing mode (MTM), a temperature-gradient-driven instability that alters magnetic topology, is compatible with these obse…
pubmed
Larakers JL, Curie M, Hatch DR, Hazeltine RD 等
2021 Jun 4
置信度 0.82
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High resolution luminosity product measurements of neutral beam emission in magnetized plasmas are severely limited by the artificial Doppler broadening inherent to the use of large diameter collection optics. In this paper, a broadening compensation method is…
pubmed
Burke MG, Fonck RJ, Harlander JM, McKee GR
2021 Jun 1
置信度 0.82
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A computer simulation technique has been applied to the modeling of radiation redistribution functions in low- and moderate-density magnetized hydrogen plasmas. The radiating dipole is described within the Heisenberg picture, and perturbations by the plasma mi…
pubmed
Rosato J
2021 May
置信度 0.82
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A new basis has been found for the theory of self-organization of transport avalanches and jet zonal flows in L-mode tokamak plasma, the so-called "plasma staircase" [Dif-Pradalier et al., Phys. Rev. E 82, 025401(R) (2010)PLEEE81539-375510.1103/PhysRevE.82.025…
pubmed
Milovanov AV, Rasmussen JJ, Dif-Pradalier G
2021 May
置信度 0.82
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Nuclear fusion is a promising alternative to address the problem of sustainable energy production. The tokamak is an approach to fusion based on magnetic plasma confinement, constituting a complex physical system with many control challenges. We study the char…
pubmed
Jalalvand A, Abbate J, Conlin R, Verdoolaege G 等
2022 Jun
置信度 0.82
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Tokamak diagnostic window glass is an indispensable optical medium in fusion research. The transmittance of the device affects the optical performance and accuracy of the diagnostic system. Especially, the window glass serves as the entrance of the light sourc…
pubmed
Zhou J, Zang Q, Zhao J, Xiao S 等
2021
置信度 0.82
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For the first time it is experimentally demonstrated on the JET tokamak that a combination of a low impurity concentration bulk plasma and large magnetohydrodynamic instabilities is able to suppress relativistic electron beams without measurable heat loads ont…
pubmed
Reux C, Paz-Soldan C, Aleynikov P, Bandaru V 等
2021 Apr 30
置信度 0.82
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The wide-angle view imaging system, in terms of a tangential view diagnostic with field of view (FOV) of 56.8° and a downward-looking diagnostic from the top of the machine with FOV of 94.7°, has been newly constructed for the first plasma of the HL-…
pubmed
Liu L, He XF, Yu DL, Shi ZB 等
2021 Apr 10
置信度 0.82
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We study the self-organization process induced by a nonlocal critical field, in analogy with the electric field that is derived from the global spatial profile of electric charge density during a discharge. In this nontrivial extension of standard sandpilelike…
pubmed
Clark J, Torres F, Morales L, Valdivia JA
2021 Mar
置信度 0.82
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We present the Feature Tracking Kit (FTK), a framework that simplifies, scales, and delivers various feature-tracking algorithms for scientific data. The key of FTK is our simplicial spacetime meshing scheme that generalizes both regular and unstructured spati…
pubmed
Guo H, Lenz D, Xu J, Liang X 等
2021 Aug
置信度 0.82
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Predictive 3D optimization reveals a novel approach to modify a nonaxisymmetric magnetic perturbation to be entirely harmless for tokamaks, by essentially restoring quasisymmetry in perturbed particle orbits as much as possible. Such a quasisymmetric magnetic …
pubmed
Park JK, Yang SM, Logan NC, Hu Q 等
2021 Mar 26
置信度 0.82
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The LLAMA (Lyman-Alpha Measurement Apparatus) diagnostic was recently installed on the DIII-D tokamak [Rosenthal et al., Rev. Sci. Instrum. (submitted) (2020)]. LLAMA is a pinhole camera system with a narrow band Bragg mirror, a bandpass interference filter, a…
pubmed
Laggner FM, Bortolon A, Rosenthal AM, Wilks TM 等
2021 Mar 1
置信度 0.82
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A polychrometer-type motional Stark effect (MSE) diagnostic technique, originally developed for the Alcator C-Mod tokamak, has been extended and applied to the Korea Superconducting Advanced Tokamak Research (KSTAR) device, the long-pulse superconducting tokam…
pubmed
Ko J, Scott S, Levinton F, Galante M 等
2021 Mar 1
置信度 0.82
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Doppler reflectometer is a powerful diagnostic tool to study the turbulence for tokamak plasmas. It can provide information on the density fluctuation, the poloidal rotation, the radial electric field, its shear, etc. A tunable multi-channel V-band (50-75 …
pubmed
Ren XH, Yang ZJ, Shi ZB, Yang ZC 等
2021 Mar 1
置信度 0.82
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This article considers a four-frequency microwave Doppler backscattering (DBS) system in the compact spherical tokamak Globus-M. The hardware was adequate for the purposes of studying the peripheral plasma in the tokamak. The multichannel DBS system is based o…
pubmed
Bulanin VV, Yashin AY, Petrov AV, Gusev VK 等
2021 Mar 1
置信度 0.82
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The ion cyclotron emission diagnostic on the DIII-D tokamak comprises seven single-turn loops that measure high-frequency (1-100 MHz) magnetic field fluctuations that are often excited by energetic particles in the plasma. The raw voltage signals induced …
pubmed
DeGrandchamp GH, Thome KE, Heidbrink WW, Holmes I 等
2021 Mar 1
置信度 0.82
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An Electron Cyclotron Emission Imaging (ECEI) data analysis module has been developed for the OMFIT platform to accommodate the needs of users at the DIII-D tokamak for physics applications. The user can easily access the ECEI spatial observation windows in th…
pubmed
Yu G, Zhu Y, Wang Y, Meneghini O 等
2021 Mar 1
置信度 0.82
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An ion cyclotron emission (ICE) diagnostic is prepared for installation into the W7-X stellarator, with the aim to be operated in the 2022 experimental campaign. The design is based on the successful ICE diagnostic on the ASDEX Upgrade tokamak. The new diagnos…
pubmed
Moseev D, Ochoukov R, Bobkov V, Dendy RO 等
2021 Mar 1
置信度 0.82
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A one dimensional, absolutely calibrated pinhole camera system was installed on the DIII-D tokamak to measure edge Lyman-alpha (Ly-α) emission from hydrogen isotopes, which can be used to infer neutral density and ionization rate profiles. The system is …
pubmed
Rosenthal AM, Hughes JW, Bortolon A, Laggner FM 等
2021 Mar 1
置信度 0.82
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As advanced scenarios are developed for tokamak operations, the demand for flexibility of the electron cyclotron emission (ECE) channels' locations has increased. The tunable feature of yttrium iron garnet (YIG) filters provides this spatial flexibility. Here,…
pubmed
Xie R, Houshmandyar S, Austin ME
2021 Mar 1
置信度 0.82
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Utilizing variable-frequency channels, e.g., yttrium iron garnet (YIG) bandpass filters, in the intermediate frequency (IF) section of an electron cyclotron emission (ECE) radiometer facilitates flexibility in the volume viewed by the ECE channels as well as h…
pubmed
Houshmandyar S, Xie R, Austin ME, Rowan WL 等
2021 Mar 1
置信度 0.82
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In magnetically confined fusion experiments, laser interferometer/polarimeter systems allow one to determine plasma density, give valuable information on the internal magnetic fields, and contribute to the evaluation of the plasma magnetic equilibrium and to t…
pubmed
Fiorucci D, Giudicotti L, Innocente P, Terranova D 等
2021 Mar 1
置信度 0.82
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Harnessing energy produced by thermonuclear fusion reactions has the potential to provide a clean and inexpensive source of energy to Earth. However, throughout the past seven decades, physicists learned that creating our very own fusion energy source is very …
pubmed
Luk OO, Lakhlili J, Hoenen O, von Toussaint U 等
2021 May 17
置信度 0.82
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We report empirical observations of magnetic island heteroclinic bifurcation for the first time. This behavior is observed in interacting coupled 2/1 tearing modes in the core of a DIII-D tokamak plasma. Poincaré maps constrained by measured magnetic ampl…
pubmed
Bardóczi L, Evans TE
2021 Feb 26
置信度 0.82
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Divertor detachment offers a promising solution to the challenge of plasma-wall interactions for steady-state operation of fusion reactors. Here, we demonstrate the excellent compatibility of actively controlled full divertor detachment with a high-performance…
pubmed
Wang L, Wang HQ, Ding S, Garofalo AM 等
2021 Mar 1
置信度 0.82
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The x-ray imaging crystal spectrometer (XICS) for Korea Superconducting Tokamak Advanced Research (KSTAR) has been upgraded to increase its performance including measurement capabilities and stable operation. A dual crystal assembly for simultaneous measuremen…
pubmed
Lee SG, Kim MK, Kim YS
2021 Feb 1
置信度 0.82
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A multi-energy hard x-ray pin-hole camera based on the PILATUS3 X 100K-M CdTe detector has been developed at the Princeton Plasma Physics Laboratory for installation on the Tungsten Environment in Steady State Tokamak. This camera will be employed to study the…
pubmed
Barbui T, Delgado-Aparicio LF, Pablant N, Disch C 等
2021 Feb 1
置信度 0.82
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The Toroidal Magnetized System device has been significantly upgraded to enable development of various wall conditioning techniques, including methods based on ion and electron cyclotron (IC/EC) range of frequency plasmas, and to complement plasma-wall interac…
pubmed
Goriaev A, Wauters T, Möller S, Brakel R 等
2021 Feb 1
置信度 0.82
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In magnetic confinement thermonuclear fusion the exhaust of heat and particles from the core remains a major challenge. Heat and particles leaving the core are transported via open magnetic field lines to a region of the reactor wall, called the divertor. Unab…
pubmed
Ravensbergen T, van Berkel M, Perek A, Galperti C 等
2021 Feb 17
置信度 0.82
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Experimental observations assisted by 2-D imaging diagnostics on the KSTAR tokamak show that a solitary perturbation (SP) emerges prior to a boundary burst of magnetized toroidal plasmas, which puts forward SP as a potential candidate for the burst trigger. We…
pubmed
Lee JE, Seo PH, Bak JG, Yun GS
2021
置信度 0.82
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The use of wide-band-gap solid-state neutron detectors is expanding in environments where a compact size and high radiation hardness are needed, such as spallation neutron sources and next-generation fusion machines. Silicon carbide is a very promising materia…
pubmed
Kushoro MH, Rebai M, Tardocchi M, Altana C 等
2021 Jan 26
置信度 0.82
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A solid-state suppress grid power supply (SGPS) is developed to be applied to the 5 MW level neutral beam injection (NBI) on HL-2M Tokamak. The power supply consists of ten modules in series, with an index of 560 V/40 A. Each of the modules is composed of an i…
pubmed
Rao Y, Chen W, Du J
2021 Jan 1
置信度 0.82
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During long-pulse deuterium plasma operations in the Experimental Advanced Superconducting Tokamak (EAST), a mixed radiation field is generated, which is mainly composed of fusion neutrons, gamma rays, and x-rays. More accurate and effective dose monitoring me…
pubmed
Zhang H, Hu L, Zhong G, Huo Z 等
2021 Jun 1
置信度 0.82
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Plasma physics---the physics of ionized matter, the universe's dominant state---began with radio's sheaths and oscillations and became fusion's engineering: the confinement of hundred-million-degree gas by magnetic fields long enough for nuclei to fuse. This a…
datacite
Revista, Zen, PHYSICS, 10
2026
置信度 0.66
plasma physicsmagnetic confinementtokamakstellaratorLawson criterion
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Plasma physics---the physics of ionized matter, the universe's dominant state---began with radio's sheaths and oscillations and became fusion's engineering: the confinement of hundred-million-degree gas by magnetic fields long enough for nuclei to fuse. This a…
datacite
Revista, Zen, PHYSICS, 10
2026
置信度 0.66
plasma physicsmagnetic confinementtokamakstellaratorLawson criterion
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Code for paper "TokaGLINT: A Scalable GPU-tailored Implicit Solver for Full 3D Tokamak Electromagnetic Simulations"
datacite
Yang, zifan, Liang, shan
2026
置信度 0.66