High temperature superconductor current leads for fusion machines

Heller, R.; Fietz, W.H.; Kienzler, A.; Lietzow, R.

doi:10.1016/j.fusengdes.2010.12.077

Cited by 39 publications

(13 citation statements)

References 16 publications

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“…HTS-CLs keep superconductivity up to 60 K. There are three pairs of HTS-CLs for TFCs (TF01-TF06, nominal current 25.7 kA), six pairs for EFCs and four pairs for CS modules (PF01-PF20, nominal current 20 kA), all of which are fabricated in Germany as shown in Fig. 10 [14]. They will receive a full current test before delivery to the Naka site.…”

Section: Magnet Shared Componentsmentioning

confidence: 99%

Progress of JT-60SA Project: EU-JA joint efforts for assembly and fabrication of superconducting tokamak facilities and its research planning

Shirai

Barabaschi²,

Kamada

2016

Fusion Engineering and Design

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Section: Magnet Shared Componentsmentioning

confidence: 99%

Progress of JT-60SA Project: EU-JA joint efforts for assembly and fabrication of superconducting tokamak facilities and its research planning

Shirai

Barabaschi²,

Kamada

2016

Fusion Engineering and Design

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“…Figure 12(a) shows the layout of the in-cryostat feeders and the CTBs. All superconducting coils are charged with currents through the in-cryostat feeders which again are connected to HTS CLs [16] (figure 12(b)) installed in the CTBs.…”

Section: Magnet Shared Componentsmentioning

confidence: 99%

JT-60SA superconducting magnet system

Koide

Yoshida

Wanner³

et al. 2015

Nucl. Fusion

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The JT-60SA is an advanced tokamak device under construction, which addresses key physics issues for ITER and DEMO. The emphasis of JT-60SA's research aims is to extend the reactor-relevant plasma pulse length towards steady state, thus the superconducting magnet is introduced for the plasma confinement. The construction of the magnet system is in progress under the collaboration between Japan and Europe. For example, manufacturing/installation of the toroidal field coils is split primarily between sites in Italy (conductor cabling and jacketing, casings fabrication, coil winding and integration), France (support structures, coil winding and integration and eventual cold testing) and Japan (on-site installation). This paper overviews the progress in the manufacturing of the JT-60SA magnet system, highlighting the engineering solutions that have been adopted. Progress in the superconducting magnet systemThe superconducting magnet system consists of 18 toroidal field (TF) coils, a central solenoid (CS) with 4 modules, 6 equilibrium field (EF) coils (figure 1), as well as high temperature superconductor current leads (HTS CLs), and electrical

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“…Critical parameters Tc, Jc and Hc limit the phase space, where the superconducting state exists. Modern magnet systems for physical (nuclear fusion) and medical applications pose high requirements to implementation of HTSC cuprate cables and wires of the 2-nd generation made on 30 µm thick Hastelloy substrate: transmission of high current density >1 kA/mm 2 at 4-65 K at applied magnetic field 2-20 Tesla [1][2][3][4]. The efficiency of generation of artificial magnetic flux pinning centers (PC) (structure defects of various dimensions from point to columnar tracks) by 1-100 MeV nuclear particles was proved experimentally, that enhanced the critical current in the field up to 10 Tesla at temperatures 20 K [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Microstructure, magnetoresistivity and carrier mobility of HTSC-YBCO tape with pinning centers generated by electron irradiation

Ibragimova,

Mussaeva,

Shodiev

et al. 2023

J. Phys.: Conf. Ser.

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Artificial pinning center lattice formed in HTSC both chemically and by irradiation is believed to increase critical current and field although Abrikosov vortex core is in the normal state. The paper presents SEM-EDS, XRD and Hall effect (80-300 K at magnetic field 0.55 Tesla) data in YBCO microfilm on 276-steel tape with metal coating exposed to 5 MeV electrons (1014 cm-2 at 400 nA) in air. No long-living radioisotope was generated. This irradiation resulted in structure modification of microinterfaces YBCO-AgCu, ten times decrease in the magneto-resistance >T c, increase in the 2nd type phase transition steep. The charge carrier mobility μ decreased by a few orders of value, especially at T <100 K and 280 K, where Cooper pairs and magnons condensate, respectively. Within 80-300 K the tape is in mixed magnetic states of YBCO and steel substrate, thereby providing effective flux pinning by highly correlated non-superconducting state.

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High temperature superconductor current leads for fusion machines

Cited by 39 publications

References 16 publications

Progress of JT-60SA Project: EU-JA joint efforts for assembly and fabrication of superconducting tokamak facilities and its research planning

Progress of JT-60SA Project: EU-JA joint efforts for assembly and fabrication of superconducting tokamak facilities and its research planning

JT-60SA superconducting magnet system

Microstructure, magnetoresistivity and carrier mobility of HTSC-YBCO tape with pinning centers generated by electron irradiation

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