# IEEE Transactions on Applied Superconductivity

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Displaying Results 1 - 25 of 28
• ### Front cover

Publication Year: 2015, Article Sequence Number: 0000601
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• ### IEEE Transactions on Applied Superconductivity publication information

Publication Year: 2015, Article Sequence Number: 0000701
| PDF (134 KB)

Publication Year: 2015, Article Sequence Number: 0000802
| PDF (113 KB)
• ### Design and Implementation of an RF Coupler Based on YBCO Superconducting Films

Publication Year: 2015, Article Sequence Number: 1500905
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A radio-frequency coupler was designed and implemented using high-temperature superconductor (HTSC) YBCO films. A circuit for a single superconducting coupling channel was implemented and serves as the primary component in the multichannel coupling system geometry, allowing a high-power broadcast due to low losses of superconductors below the critical temperature (Tc). In this paper, a ... View full abstract»

• ### Compact Superconducting Diplexer Design With Conductor-Backed Coplanar Waveguide Structures

Publication Year: 2015, Article Sequence Number: 1501304
Cited by:  Papers (3)
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This paper presents a compact superconducting diplexer with conductor-backed coplanar waveguide (CBCPW) structures. The couplings of the CBCPW structure resonators are significantly weaker than those of traditional microstrip resonators. High isolations between two channels are therefore achieved by using the CBCPW structures because of their highly suppressed unwanted cross couplings. The CBCPW d... View full abstract»

• ### Tuning of the Terahertz Radiation Frequency From Superconductors

Publication Year: 2015, Article Sequence Number: 1800804
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The terahertz radiation due to the flux flow in a superconductor slab is investigated, and the radiated power spectrum is calculated. The slab of the superconductor is immersed inside a magnetic field and biased with an ac component added to the dc current. The results show that, by adding an ac component, the peaks of radiation could be manipulated. Therefore, by adjusting the amplitude and frequ... View full abstract»

• ### Possibilities to Make Panoramic Receiver–Frequency Meter in Terahertz Band Based on Josephson Junctions

Publication Year: 2015, Article Sequence Number: 1800909
Cited by:  Papers (4)
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Based on previous theoretical and experimental investigations, possibilities of using Josephson junctions (JJs) to realize a new type of wideband frequency meter integrated with panoramic receiver (PRF) in terahertz band in a single unit were described in this paper. The suggested device can be particularly valuable for experimental purposes in terahertz band, where available equipment for frequen... View full abstract»

• ### Design and Preliminary Prototype Test of a High Temperature Superconducting Suspension Electromagnet

Publication Year: 2015, Article Sequence Number: 3600406
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This paper presents the development of maglev train and superconducting technology in China. Aiming at the heating problem of normal suspension electromagnet, a high temperature superconducting (HTS) suspension electromagnet based on Bi-2223/Ag tape was designed. We tested the heating condition of normal suspension electromagnet and designed the structure, size and technical parameters of the HTS ... View full abstract»

• ### Nondestructive Testing and Quality Control of the LHC Main Interconnection Splices

Publication Year: 2015, Article Sequence Number: 4000108
Cited by:  Papers (4)
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The Large Hadron Collider (LHC) main interconnection splices consist of Rutherford-type cable splice and busbar stabilizer splices. Busbar stabilizer splices have been consolidated during the first long LHC shutdown by soldering additional Cu shunts. In view of the large number of quality controls (QCs) that were integrated in the splice consolidation process, efficient and unambiguous QC procedur... View full abstract»

• ### Experimental Study of the Mechanical Characteristics of SIS300 Cos–Theta Dipolar Coils

Publication Year: 2015, Article Sequence Number: 4003605
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The synchrotron SIS300 is a core component of the FAIR facility, which is under development at GSI. The high intensities of proton and heavy ion beams require the synchrotron to be ramped in a few seconds. In particular, the bending dipole magnets have to be pulsed from the injection magnetic field of 1.5 T up to the maximum field of 4.5 T at the rate of 1 T/s. The fast field ramp together with th... View full abstract»

• ### Cryogenic Acceptance Tests of SST-1 Superconducting Coils

Publication Year: 2015, Article Sequence Number: 4200107
Cited by:  Papers (2)
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Toroidal field (TF) and poloidal field (PF) coils of steady-state superconducting tokamak (SST-1) have been fully refurbished to ensure cryostable and low-dc-resistance interpancake and intercoil joints, helium leak tightness of the winding pack, and ) 10 MΩ winding pack to ground insulation resistance under cold conditions. As per SST-1 mission mandate, all TF coils and PF3 Top had been co... View full abstract»

• ### Conceptual Design of the CFETR Toroidal Field Superconducting Coils

Publication Year: 2015, Article Sequence Number: 4202009
Cited by:  Papers (4)
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The China Fusion Engineering Test Reactor (CFETR) superconducting tokamak is a national scientific research project of China with plasma major and minor radii of 5.7 and 1.6 m, respectively. The magnetic field in the center of plasma at a radius of R = 5.7 m is 5.0 T. The major objective of the project is to build a fusion engineering tokamak reactor with fusion power within the range of 50-200 MW... View full abstract»

• ### Cold Mass Support Structure Design of MRI Superconducting Magnet Developed by IHEP

Publication Year: 2015, Article Sequence Number: 4400106
Cited by:  Papers (2)
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A tie rod made of carbon fiber reinforced plastic (CFRP) is introduced in this paper. A 2-D cold mass support structure made of CFRP tie rods, which is used in magnetic resonance imaging superconducting magnets, is discussed in detail. Concretely, three main aspects of the cold mass support structure are taken into consideration, including conductive heat leak, structure strength, and mechanical v... View full abstract»

• ### Preliminary Mechanical Analysis of a 9.4-T Whole-Body MRI Magnet

Publication Year: 2015, Article Sequence Number: 4400207
Cited by:  Papers (8)
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A 9.4-T/800-mm superconducting magnet for whole-body magnetic resonance imaging system has been designed and will be constructed from NbTi conductors. Main coils wound on five aluminum alloy formers provide the center field strength of about 9.4 T. In addition, compensation coils wound on another aluminum alloy former are used to improve the field uniformity of the imaging region. The operating po... View full abstract»

• ### Simplified Analytical Formulas of Quench Dynamics

Publication Year: 2015, Article Sequence Number: 4700205
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Quench of a superconducting magnet in MRI scanners may cause damage to the coil. Temporal evolution of current and maximum temperature developed in the coil determine safety of the scanner. Commonly, these parameters are computed using 3-D simulation programs. However, numerical models do not provide physical links between basic parameters of the magnet and quench dynamics. This paper presents ana... View full abstract»

• ### Numerical Simulation of Microchannel Deformation in Enhanced Insulation for Nb–Ti Superconducting Accelerator Magnets

Publication Year: 2015, Article Sequence Number: 4800206
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A new insulation scheme for the Nb-Ti superconducting magnets to better extract heat from the coil was proposed in 2007, and several experiments were done to validate this novel concept, including the construction of a large aperture quadrupole. An essential parameter of this scheme is the size of the microchannels provided by a new topology of the insulation wrapping, allowing a direct helium pat... View full abstract»

• ### R&D on 52-kA HTS Current Lead at ASIPP

Publication Year: 2015, Article Sequence Number: 4802704
Cited by:  Papers (2)
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The Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP) is experienced in the design and fabrication of high-temperature superconductor (HTS) current leads such as those successfully used in the Experimental Advanced Superconducting (EAST) Tokamak. The aim of the 52-kA trial lead was to develop a prototype for the leads supplying the poloidal field and central solenoid magnets of ITER... View full abstract»

• ### Hot Spot Temperature in an HTS Coil: Simulations With MIITs and Finite Element Method

Publication Year: 2015, Article Sequence Number: 4901107
Cited by:  Papers (2)
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MIITs, a zero-dimensional concept to study hot spot temperature, has been previously used to estimate hot spot temperatures and quench heater delays in NbTi and Nb3Sn magnets. However, quench behavior is completely different in high-temperature superconducting (HTS) magnets due to the slow normal zone propagation velocity and the high temperature margin. Because the MIITs concept does n... View full abstract»

• ### Study of Key Parameters and Cryogenic Vessel Structure of 10-MW Salient-Pole Wind Turbine HTS Generators

Publication Year: 2015, Article Sequence Number: 5200406
Cited by:  Papers (11)
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A 10-MW wind turbine high temperature superconductor (HTS) synchronous generator operating at 68 K is modeled according to the optimized parameter, and the magnetic flux density (MFD) in various generator parts is simulated. Two key parameters of field leakage coefficient and operating field current are determined based on the MFD simulation results. Moreover, as the cryogenic component, a basic v... View full abstract»

• ### Application Studies on the Active SISFCL in Electric Transmission System and Its Impact on Line Distance Protection

Publication Year: 2015, Article Sequence Number: 5600109
Cited by:  Papers (1)
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The application of superconducting fault current limiters in transmission systems is very attractive because the devices offer superior technical performance in comparison to conventional methods to limit fault currents. The superconducting fault current limiters show high impedance during fault period and negligible impedance in the circuit during normal operating conditions. This paper illustrat... View full abstract»

• ### DC Circuit Breaker Using Superconductor for Current Limiting

Publication Year: 2015, Article Sequence Number: 5600207
Cited by:  Papers (5)
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The unavailability of high-capacity HVdc circuit breakers (CBs) is one of the key stoppers for building HVdc multiterminal networks. As the dc does not have a natural current zero, its interruption is very different. The objective of this paper is to propose a new type of dc CB (DCCB), including a current-limiting part and an interrupting part, which can interrupt a high short-circuit current. Exp... View full abstract»

• ### The ADI Method for Simulations of SFCL

Publication Year: 2015, Article Sequence Number: 5600309
Cited by:  Papers (4)
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In spite of the recent advances achieved with superconducting fault current limiters, modeling and simulation of such devices are still important issues. Different approaches have been used to model the transient behavior of such devices when submitted to fault currents. In this paper, the alternating direction implicit method is used to numerically solve the thermal equations discretized by the f... View full abstract»

• ### Impact of the Normal Zone Propagation Velocity of High-Temperature Superconducting Coated Conductors on Resistive Fault Current Limiters

Publication Year: 2015, Article Sequence Number: 5601708
Cited by:  Papers (3)
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The engineering critical current, i.e., Ic, of high-temperature superconducting coated conductors (HTS-CCs), today available on the market, is not a uniform parameter and varies significantly along the length of the conductors. In addition, commercial HTS-CCs have a low normal zone propagation velocity (NZPV). This property, together with the Ic inhomogeneity, exposes the HTS-CCs to local thermal ... View full abstract»

• ### Fabrication of $\hbox{Nb}_{3}\hbox{Al}$ Superconducting Wires by the Mechanical Alloying Method

Publication Year: 2015, Article Sequence Number: 6000105
Cited by:  Papers (1)
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Although the rapid heating quenching and transformation method has been used as a general way to fabricate high-performance Nb3Al superconducting wires, the complicated heat treatment apparatus and techniques obstruct its practical application. In this paper, Nb-Al saturated solid solution (Nb(Al)ss) was fabricated by the mechanical alloying method at room temperature, and th... View full abstract»

• ### Tensile and Bending Strain Tolerance of Ex Situ MgB2/Ni/Cu Superconductor Tape

Publication Year: 2015, Article Sequence Number: 6200607
Cited by:  Papers (9)
| | PDF (1197 KB) | HTML

This paper describes the strain tolerance of MgB2/Ni/Cu tape produced by Columbus Superconductors subjected to tension and bending stress. A tension test instrument with freestanding sample was used for stress-strain, Ic-stress, and Ic-strain characteristics at liquid helium temperature. Bending of MgB2/Ni/Cu tape to variable diameters was done at room t... View full abstract»

## Aims & Scope

IEEE Transactions on Applied Superconductivity contains articles on the applications of superconductivity and other relevant technology.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Britton L. T. Plourde
Syracuse University
bplourde@syr.edu
http://asfaculty.syr.edu/pages/phy/plourde-britton.html