CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Magnetic properties of permanent magnet for cryogenic undulator of permanent Shanghai synchrotron radiation facility
He Yong-Zhou; Zhou Qiao-Gen
2013
Source PublicationACTA PHYSICA SINICA
ISSN1000-3290
Volume62Issue:4
AbstractM-H and M-T curve at cryogenic (10-300 K) of domestic Nd2Fe14B (N50M) permanent magnet are tested by physical property measurement system (PPMS). B-r-T and H-ci-T figure under the cryogenic condition for N50M are obtained. The orientation degree and three-dimensional magnetization are also analyzed and researched under the cryogenic conditon. The results show that N50M has a strong spin reorientation effect(SRT) between 80 and 150 K, B-r shows a peak between 120 and 130 K and H-ci increases linearly with temperature decresing. At 130 K, B-r increases 15.6% and H-ci increases 220% compared with at room temperature (300 K), reaching 1.65 T and 3638 kA/m respectively. Between 150 and 300 K, with temperature declining, the macroscopic orientation degree uniformity and the external magnetic field uniformity of N50M are improved gradually. Between 80 and 235 K, the micro-external magnetic field uniformity shows a deterioration phenomenon. The experimental research also indicates that near 235 K the N50M perpendicular to orientation direction presents a "remanent magnetization jump" phenomenon. The experimental results provide a reference for the physical design of cryogenic undulator for Shanghai Synchrotron Radiation Facility II and other high-precision cryogenic permanent magnet instruments and equipment.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000316859500020
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13812
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
He Yong-Zhou,Zhou Qiao-Gen. Magnetic properties of permanent magnet for cryogenic undulator of permanent Shanghai synchrotron radiation facility[J]. ACTA PHYSICA SINICA,2013,62(4).
APA He Yong-Zhou,&Zhou Qiao-Gen.(2013).Magnetic properties of permanent magnet for cryogenic undulator of permanent Shanghai synchrotron radiation facility.ACTA PHYSICA SINICA,62(4).
MLA He Yong-Zhou,et al."Magnetic properties of permanent magnet for cryogenic undulator of permanent Shanghai synchrotron radiation facility".ACTA PHYSICA SINICA 62.4(2013).
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