Conveners
Wed-Af-Po3.15 - HTS Magnets and Conductors for Accelerators
- Maria Baldini (FNAL)
- Alexander Otto (Solid Material Solutions, LLC)
In the framework of the FP7 EuCARD2 project, CEA Saclay developed a cos-theta insert magnet, wound with REBCO high temperature superconductor Roebel cable. Each dipole coil consists of a single arched layer of conductors, insulated with a glass fiber sleeve and impregnated with epoxy resin for mechanical reinforcement. Tooling has been developed to carefully guide the Roebel cable during the...
This paper numerically and experimentally studies the mechanical properties of quasi-isotropic strands under bending load at 77 K. Due to quasi-isotropic superconducting core fabricated by 2G wires existing in strand, bending on strand in different directions will lead to various critical current degradation, which will necessary meet during the winding of them into high current cable. Trough...
The Rare Isotope Science Project (RISP) of Institute for Basic Science (IBS) has been constructing a heavy ion accelerator complex, named Rare isotope Accelerator complex for ON-line experiments (RAON). To produce various high-intensity rare isotope beams, the RISP equips RAON with two rare isotope beam production systems: in-flight fragment (IF) separator; and isotope separator on-line...
IHEP (The Institute of High Energy Physics, Chinese Academy of Sciences) is pursuing the pre-study of SPPC, a super Proton-Proton collider prorosed to be built in the future. To reach the 70 TeV or higher center of mass energy in proton collisions, dipole magnets with 12-T or higher bore field are required. A subscale magnet named LPF1 was fabricated and tested in 2018, which reached a main...
A prototype REBa2Cu3Oy (REBCO) sextupole magnet was designed and fabricated for the chromaticity correction of an asymmetric–energy collider, named SuperKEKB. The REBCO sextupole magnet consists of six two-layer-rectangular coils, which are wound with a 4-mm-wide coated conductor and impregnated with epoxy resin. The inner bore radius and magnet length are 75 mm and 200 mm, respectively. The...
A future accelerator facility to open up a new frontier will require a superconducting magnet with high radiation resistance. A construction plan of a second materials and life science experimental facility is proposed as one of the future plans of J-PARC. At the facility, superconducting solenoids are placed just behind the target to maximize the production of secondary particles. The...
The new high temperature superconducting (HTS) quadrupole magnet with circular coils was designed and built at Fermilab. There were investigated also several HTS coils at the liquid nitrogen temperature. The main goal of this activity is to investigate coils, and the magnet operation in a persistent current mode to reduce accelerator magnets capital and operational expenses. For that was used...
An air-core HTS quadruple magnet has many advantages by eliminating iron-core of an iron-core quadruple magnet. Study on air-core HTS quadruple magnet for accelerator application is currently ongoing at Applied Superconductivity Laboratory, Yonsei University. It is comprised of 8 metal-insulation double-pancake racetrack coils, each wound with 4 mm wide REBCO tapes. An REBCO tape is of high...
A quadruple magnet, one of the superconducting magnets in accelerator system, is used to focusing accelerated beam particles. Recently developed high-temperature superconductor(HTS) has characteristics of high critical temperature and operating current densities under high-field region. Therefore, developments of HTS quadruple magnets applied to the hot cell region that has a high heat load in...
The RAON of Rare Isotope Science Project (RISP) in Korea will provide not only rare isotope (RI) beams, but also stable heavy ions, ranging from protons to Uranium. Both of the In-flight Fragment (IF) separation and the isotope separation on-line (ISOL) will be used in RAON. Six HTS quadrupole magnets and One HTS sextupole magnet will be installed in the forepart of IF separator considering...
A 3-T MgB$_2$ dipole magnet has been designed aiming at applications of compact accelerators and rotating gantries for heavy-ion radiotherapy facilities. The dipole magnet contains two identical racetrack coils. Each coil is wound by 156-m long commercial MgB$_2$ wire, with the length of the straight side, the winding diameter of the round portion and the height of 60 mm, 40 mm and 23 mm,...
ReBCO is the second generation of high temperature superconducting (HTS) materials with potential for high-field applications and low mass quality applications. The fabrication process and performance of superconducting cables are a key issue for superconducting magnets operating at high-field or large sizes. This study describes a process of a soldered stacked conductor using a 4 mm wide...
Abstract— Electron Ion Collider (EIC) will be a next generation collider to address outstanding puzzles in modern nuclear physics, supported by both Brookhaven National Laboratory (BNL) and Jefferson Laboratory (JLab). The design of the interaction region (IR) requires a high field quadrupole for the heavier proton beams and an almost field free path (desired magnetic field within a few mT)...
