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Jing Yang16/11/2021, 13:15Poster
In this paper we show that the design of specialized rotating coil system to measure magnetic Axis of the triplet quadrupoles whose magnetic axis deviation are less than 0.1mm and angle deviation are less than 1mrad between them, built for DTL of a Linear accelerators. In this paper we describe the design of the rotating coils canceling the first two field harmonics, and the process of the...
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Mr Shogo Murakami (Waseda University)16/11/2021, 13:15Poster
We have been developing a no-insulation (NI) REBCO coil system for medical accelerators and high-field magnetic resonance imaging (MRI). There are increasing attempts to apply NI winding technology to achieve both high current density and high thermal stabilization of REBCO coils. However, REBCO coated conductor has a tape shape, and when a magnetic field is applied vertically to the tape...
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Xiaorong Wang (Lawrence Berkeley National Laboratory)16/11/2021, 13:15Poster
The U.S. High-Luminosity LHC Accelerator Upgrade Project (HL-LHC AUP) is developing MQXFA magnets, a series of 4.5 m long 150 mm aperture high-field Nb$_3$Sn quadrupole magnet for the Hi-Luminosity LHC upgrade at CERN. Five Pre-Series magnets, MQXFA03 through MQXFA07, have been developed. During the magnet assembly stage, we perform magnetic measurements of the coil packs and magnets to track...
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JACOB ROCHESTER (The Ohio State University)16/11/2021, 13:15Poster
Bi:2212 superconducting cables are being considered for use in high field magnets such as those in the next generation of particle accelerators. However, a comprehensive understanding of their behavior is necessary before full-scale magnets can be constructed. The magnetization and flux creep in the superconductor can lead to significant field errors which need to be compensated. To study...
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Joseph DiMarco (Fermilab)16/11/2021, 13:15Poster
LQXFA/B production series cryogenic assemblies are being built for the LHC upgrade by the HL-LHC Accelerator Upgrade Project (AUP). These contain a pair of MQXFA quadrupole magnets combined as a cold mass installed within a vacuum vessel, and are to be installed in the IR regions of the LHC. The LQXFA/B are being tested at 1.9 K to assess alignment and magnetic performance at Fermilab’s...
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Kodai SHIRAI (Waseda University)16/11/2021, 13:15Poster
Targeted alpha-particle therapy is a cancer treatment method using alpha-emitting radioisotope (RI), and is expected as a treatment method for progressive cancer. We are conducting research toward the development of a High-temperature-superconducting Skeleton Cyclotron (HTS-SC), which is an ultra-compact and high-intensity accelerator capable of stably producing the alpha-emitting...
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Michael Green (Lawrence Berkeley Laboratory)16/11/2021, 13:15Poster
It has been fifty years since the first papers on the effects of magnetization in the superconductor in an accelerator magnet field quality were measured. The effects of conductor magnetization are most pronounced at low fields. By late 1971, a reliable method for estimating the effects of superconductor magnetization on the field quality in accelerator magnets was developed. A review of...
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yan bing Yang (Institute of Modern Physics. Chinese Academy of Sciences)16/11/2021, 13:15Poster
The magnetic center alignment is extraordinarily important before put a new ion-source into operation. Misalignment of ion-source may cause arc chamber destroyed. We take two methods to measure and align the ion-source superconducting magnet based on the cryostat bore in IMP. The required offset between ion-source magnetic center and mechanical center of warm bore is less than 0.5mm.
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