Design, Fabrication and Testing of a D-Shaped High Temperature Superconducting Magnet
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arXiv
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| Natura: | Preprint |
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2026
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| author | Prasad, Upendra Ghate, Mahesh Raj, Piyush Kanabar, Deven Varmora, Pankaj Roy, Swati Panchal, Arun Bhavsar, Dhaval Bano, Anees Kumar, Nitish Parghi, Bhadresh Yadav, Akhilesh Umer, Mohd. Vasava, Vijay Mandal, Raton Ahirwar, Rajkumar Thaker, Megha |
| author_facet | Prasad, Upendra Ghate, Mahesh Raj, Piyush Kanabar, Deven Varmora, Pankaj Roy, Swati Panchal, Arun Bhavsar, Dhaval Bano, Anees Kumar, Nitish Parghi, Bhadresh Yadav, Akhilesh Umer, Mohd. Vasava, Vijay Mandal, Raton Ahirwar, Rajkumar Thaker, Megha |
| contents | High-temperature technical superconductors are potential candidates for compact and high-field tokamak magnets. The demand for higher fusion power can be met with an on-axis high magnetic field due to toroidal magnets. An R&D activity has been initiated at the Institute for Plasma Research, India, to develop a compact D-shaped superconducting magnet utilizing REBCO high-temperature superconducting tapes. Under this initiative, a toroidal configuration with a major radius of 0.42 m, consisting of eight D-shaped, four poloidal field, and a central solenoid high-temperature superconducting magnets producing an on-axis toroidal magnetic field of 0.23 T has been conceptualized. The fabrication feasibility of a D-shaped coil for this toroidal configuration also envisaged using stacked high-temperature superconducting cable. In this paper, we report the design of a compact D-shaped coil, the fabrication of a long length HTS cable, a winding pack, and its integration with a cryogenic casing and vacuum enclosure. The winding pack terminations, joints, its interfacing with the power supply, and performance testing are also reported in this paper. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_10295 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Design, Fabrication and Testing of a D-Shaped High Temperature Superconducting Magnet Prasad, Upendra Ghate, Mahesh Raj, Piyush Kanabar, Deven Varmora, Pankaj Roy, Swati Panchal, Arun Bhavsar, Dhaval Bano, Anees Kumar, Nitish Parghi, Bhadresh Yadav, Akhilesh Umer, Mohd. Vasava, Vijay Mandal, Raton Ahirwar, Rajkumar Thaker, Megha Accelerator Physics Plasma Physics High-temperature technical superconductors are potential candidates for compact and high-field tokamak magnets. The demand for higher fusion power can be met with an on-axis high magnetic field due to toroidal magnets. An R&D activity has been initiated at the Institute for Plasma Research, India, to develop a compact D-shaped superconducting magnet utilizing REBCO high-temperature superconducting tapes. Under this initiative, a toroidal configuration with a major radius of 0.42 m, consisting of eight D-shaped, four poloidal field, and a central solenoid high-temperature superconducting magnets producing an on-axis toroidal magnetic field of 0.23 T has been conceptualized. The fabrication feasibility of a D-shaped coil for this toroidal configuration also envisaged using stacked high-temperature superconducting cable. In this paper, we report the design of a compact D-shaped coil, the fabrication of a long length HTS cable, a winding pack, and its integration with a cryogenic casing and vacuum enclosure. The winding pack terminations, joints, its interfacing with the power supply, and performance testing are also reported in this paper. |
| title | Design, Fabrication and Testing of a D-Shaped High Temperature Superconducting Magnet |
| topic | Accelerator Physics Plasma Physics |
| url | https://arxiv.org/abs/2601.10295 |