Progress in the Construction of the 43 T Hybrid Magnet at LNCMI-Grenoble

Pugnat, P.; Barbier, R.; Berriaud, Christophe; Berthier, R.; Boujet, Theo; Debray, F.; Fazilleau, Philippe; Graffin, P.; Hanoux, Pierre; Hervieu, B.; Molinié, F.; Neyrial, H.; Pelloux, Mickael; Peroni, Charles; Pfister, Rolf; Queinec, Y.; Ronayette, L.; Vincent, Benjamin

doi:10.1109/tasc.2017.2780820

Cited by 12 publications

(7 citation statements)

References 16 publications

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“…As an example of the hybrid-magnet technology we briefly describe a system under construction at LNCMI-Grenoble ( Fig. 25) that, in a first step, will produce a continuous magnetic field of 43 T in a 34 mm warm bore [155]. There are only a few hybrid magnets over 40 T currently operating worldwide [156] as there remains a technological challenge due to the necessity for the superconducting coil to withstand quenches and large electromechanical forces from the warm insert, especially under fault conditions.…”

Section: Hybrid Magnetsmentioning

confidence: 99%

High magnetic fields for fundamental physics

et al. 2018

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Various fundamental-physics experiments such as measurement of the birefringence of the vacuum, searches for ultralight dark matter (e.g., axions), and precision spectroscopy of complex systems (including exotic atoms containing antimatter constituents) are enabled by high-field magnets. We give an overview of current and future experiments and discuss the state-of-the-art DCand pulsed-magnet technologies and prospects for future developments. * Electronic address: budker@uni-mainz.de †

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Section: Hybrid Magnetsmentioning

confidence: 99%

High magnetic fields for fundamental physics

et al. 2018

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“…The project baseline foresees to use the existing 24 MW electrical power installation for the resistive inserts. The ongoing upgrade of this installation up to 30 MW in a first step and 36 MW in a second one has been anticipated since the design phase of the hybrid magnet with the target to produce a magnetic field up to 46 T in 34 mm diameter and possibly more [1]. Further studies are ongoing for this challenging step, which is expected also to profit from the first years of experience gained with the operation at 43 T.…”

Section: Introductionmentioning

confidence: 99%

“…This has required the insertion of a stainless steel core inside the 19 strands Rutherford cable produced by Bruker as well as strict control of the amount of soft-solder used during the specially developed induction soldering process. To further prevent magnet quenching by reducing the magnetic field decay seen by the superconducting outsert in case of trips of resistive inserts, a copper shield with stainless steel reinforcement cooled at 30 K has been inserted in between the superconducting and resistive coils [1].…”

Section: Introductionmentioning

confidence: 99%

43+T Grenoble hybrid magnet: Commissioning tests of the current leads and cryogenic satellite producing the pressurized superfluid He at 1.8 K

Pugnat

Barbier

Berriaud

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The Grenoble Hybrid magnet is a modular platform using resistive and superconducting technologies to produce various continuous high magnetic field and flux configurations for the scientific community. They range from 43 T in 34 mm diameter with 24 MW electrical power to 9 T in 800 mm diameter when the superconducting coil is used alone. Thanks to the ongoing upgrade of the electrical power installation of LNCMI-Grenoble up to 30 MW and possibly to 36 MW, the possibility to increase the total field up to 45-46 T in the near future is foresee and deeply studied. The key design parameters will be briefly recalled including the specifically developed Nb-Ti/Cu conductor, the large bore outsert superconducting coil, the magnet cryostat with its structure including the eddy-current shield, the cryogenic line for the interconnection with the cryogenic satellite and the fully dedicated 150 l/h He liquefaction plant. All components of the hybrid magnet platform have been built, tested and delivered to LNCMI-Grenoble, where integration and assembly are ongoing. The status of the project will be given with focus to the recent commissioning tests of the cryogenic satellite producing the pressurized superfluid He at 1.8 K as well as to the successful powering tests of the specially developed current leads at ultimate current and under fully degraded cooling conditions simulating the worst-case accidental scenario.

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“…The project progress management level is one of the comprehensive indicators to measure the management level of construction enterprises. Project schedule management is an important part of project management of construction enterprises [9]. Whether the operation results of project group management activities are significant or not has become the key to whether the construction enterprise can produce enterprise benefits.…”

Section: Introductionmentioning

confidence: 99%

Research on Construction Schedule Control and Management Based on Particle Swarm Optimization

Liu¹

2021

converter

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Project management is to use scientific theories and methods, and coordinate to achieve the objectives of project establishment. It must be clearly seen that there are many problems in the management of construction enterprises in China, and the management level of construction projects is not uniform. The whole process of building construction is the process of putting in labor, building materials and technical methods to produce building products that meet the requirements. As an enterprise, it must consider its own economic benefits. Different projects can be divided into several stages with different contents and numbers according to specific conditions. The results of the operation of the project management activities are significant or not, and become the key to whether the construction enterprise construction project group can generate enterprise benefits. Based on the particle swarm optimization algorithm, this paper provides some references for such project management by discussing the relationship between construction schedule and economic benefit, construction schedule and quality management. We should conduct in-depth and systematic research on China's project management model and organizational environment, and try to better suit the project management operation mechanism of China's national conditions.

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Progress in the Construction of the 43 T Hybrid Magnet at LNCMI-Grenoble

Cited by 12 publications

References 16 publications

High magnetic fields for fundamental physics

High magnetic fields for fundamental physics

43+T Grenoble hybrid magnet: Commissioning tests of the current leads and cryogenic satellite producing the pressurized superfluid He at 1.8 K

Research on Construction Schedule Control and Management Based on Particle Swarm Optimization

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