Portable Magnetic Field Mapping Measurement System Based on Large-Scale Dipole Magnets in HIAF
The High-Intensity Heavy-Ion Accelerator Facility (HIAF) is a significant national science and technology infrastructure project, constructed by the Institute of Modern Physics, Chinese Academy of Sciences (IMP, CAS). It is designed to provide intense proton, heavy ion beams, and target-produced rad...
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MDPI AG
2025-04-01
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| author | Xiang Zhang Zidi Wu Li’an Jin Jing Yang Xianjin Ou Dongsheng Ni Yue Cheng Lixia Zhao Yujin Tong Weigang Dong Beimin Wu Guohong Li Qinggao Yao |
| author_facet | Xiang Zhang Zidi Wu Li’an Jin Jing Yang Xianjin Ou Dongsheng Ni Yue Cheng Lixia Zhao Yujin Tong Weigang Dong Beimin Wu Guohong Li Qinggao Yao |
| author_sort | Xiang Zhang |
| collection | DOAJ |
| description | The High-Intensity Heavy-Ion Accelerator Facility (HIAF) is a significant national science and technology infrastructure project, constructed by the Institute of Modern Physics, Chinese Academy of Sciences (IMP, CAS). It is designed to provide intense proton, heavy ion beams, and target-produced radioactive ion beams for nuclear physics and related research. Large-aperture, high-precision, room-temperature, and superconducting dipole magnets are extensively used to achieve high-intensity beams. However, for large-scale magnets (particularly superconducting magnets), the traditional Hall probe mapping measurement platform encounters several limitations: a long preparation time, high cost, low testing efficiency, and positional inaccuracies caused by repeated magnet disassembly. This paper presents a new magnetic field mapping measurement system incorporating ultrasonic motors operable in strong magnetic fields (≥7 T), enabling portable, highly efficient, and high-precision magnetic field measurements. After system integration and commissioning, the prototype dipole magnet for the high-precision spectrometer ring (SRing) was measured. The measurement system demonstrated superior accuracy and efficiency compared with traditional Hall probe mapping systems. On this basis, the magnetic field distribution and integral excitation curve of all 11 warm-iron superconducting dipole magnets and 3 anti-irradiation dipole magnets in the HIAF fragment separator (HFRS) were measured. Each magnet took less than 1 day to measure, and all magnetic field measurement results met the physical specifications. |
| format | Article |
| id | doaj-art-57fa1d1a758b4bdf94b646caafbc53ad |
| institution | OA Journals |
| issn | 2673-8244 |
| language | English |
| publishDate | 2025-04-01 |
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| series | Metrology |
| spelling | doaj-art-57fa1d1a758b4bdf94b646caafbc53ad2025-08-20T02:20:58ZengMDPI AGMetrology2673-82442025-04-01522210.3390/metrology5020022Portable Magnetic Field Mapping Measurement System Based on Large-Scale Dipole Magnets in HIAFXiang Zhang0Zidi Wu1Li’an Jin2Jing Yang3Xianjin Ou4Dongsheng Ni5Yue Cheng6Lixia Zhao7Yujin Tong8Weigang Dong9Beimin Wu10Guohong Li11Qinggao Yao12Institute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, No. 509 Nanchang Rd., Lanzhou 730000, ChinaThe High-Intensity Heavy-Ion Accelerator Facility (HIAF) is a significant national science and technology infrastructure project, constructed by the Institute of Modern Physics, Chinese Academy of Sciences (IMP, CAS). It is designed to provide intense proton, heavy ion beams, and target-produced radioactive ion beams for nuclear physics and related research. Large-aperture, high-precision, room-temperature, and superconducting dipole magnets are extensively used to achieve high-intensity beams. However, for large-scale magnets (particularly superconducting magnets), the traditional Hall probe mapping measurement platform encounters several limitations: a long preparation time, high cost, low testing efficiency, and positional inaccuracies caused by repeated magnet disassembly. This paper presents a new magnetic field mapping measurement system incorporating ultrasonic motors operable in strong magnetic fields (≥7 T), enabling portable, highly efficient, and high-precision magnetic field measurements. After system integration and commissioning, the prototype dipole magnet for the high-precision spectrometer ring (SRing) was measured. The measurement system demonstrated superior accuracy and efficiency compared with traditional Hall probe mapping systems. On this basis, the magnetic field distribution and integral excitation curve of all 11 warm-iron superconducting dipole magnets and 3 anti-irradiation dipole magnets in the HIAF fragment separator (HFRS) were measured. Each magnet took less than 1 day to measure, and all magnetic field measurement results met the physical specifications.https://www.mdpi.com/2673-8244/5/2/22magnetic field measurementlarge-scale dipole magnetultrasonic motors |
| spellingShingle | Xiang Zhang Zidi Wu Li’an Jin Jing Yang Xianjin Ou Dongsheng Ni Yue Cheng Lixia Zhao Yujin Tong Weigang Dong Beimin Wu Guohong Li Qinggao Yao Portable Magnetic Field Mapping Measurement System Based on Large-Scale Dipole Magnets in HIAF Metrology magnetic field measurement large-scale dipole magnet ultrasonic motors |
| title | Portable Magnetic Field Mapping Measurement System Based on Large-Scale Dipole Magnets in HIAF |
| title_full | Portable Magnetic Field Mapping Measurement System Based on Large-Scale Dipole Magnets in HIAF |
| title_fullStr | Portable Magnetic Field Mapping Measurement System Based on Large-Scale Dipole Magnets in HIAF |
| title_full_unstemmed | Portable Magnetic Field Mapping Measurement System Based on Large-Scale Dipole Magnets in HIAF |
| title_short | Portable Magnetic Field Mapping Measurement System Based on Large-Scale Dipole Magnets in HIAF |
| title_sort | portable magnetic field mapping measurement system based on large scale dipole magnets in hiaf |
| topic | magnetic field measurement large-scale dipole magnet ultrasonic motors |
| url | https://www.mdpi.com/2673-8244/5/2/22 |
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