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马娜, 李波, 董岚, 等. CSNS四极铁标定方案分析[J]. 强激光与粒子束, 2022, 34: 084002. doi: 10.11884/HPLPB202234.210512
引用本文: 马娜, 李波, 董岚, 等. CSNS四极铁标定方案分析[J]. 强激光与粒子束, 2022, 34: 084002. doi: 10.11884/HPLPB202234.210512
Ma Na, Li Bo, Dong Lan, et al. Analysis of calibration schemes for CSNS quadrupole[J]. High Power Laser and Particle Beams, 2022, 34: 084002. doi: 10.11884/HPLPB202234.210512
Citation: Ma Na, Li Bo, Dong Lan, et al. Analysis of calibration schemes for CSNS quadrupole[J]. High Power Laser and Particle Beams, 2022, 34: 084002. doi: 10.11884/HPLPB202234.210512

CSNS四极铁标定方案分析

doi: 10.11884/HPLPB202234.210512
基金项目: 国家自然科学基金项目(12075246)
详细信息
    作者简介:

    马娜:马 娜,mana870518@163.com

    通讯作者:

    李 波,libo@ihep.ac.cn

  • 中图分类号: TL99

Analysis of calibration schemes for CSNS quadrupole

  • 摘要: 围绕CSNS 四极铁的中心引出标定方案进行研究,重点分析基于测磁平台获得的四极铁磁中心和旋转中心的偏差标准值;同时对每块磁铁进行两遍旋转中心和机械中心标定,比较其中心偏差标准值,分析结果表明:基于测磁平台获得的四极铁磁中心和旋转中心的偏差标准值为0.1 mm;通过两遍旋转和机械中心标定,获得的CSNS四极铁的标定重复性精度在0.03 mm之内;旋转和机械中心的 偏差标准值为0.1 mm。因此同类型、同准直精度要求的设备准直在无法实施磁中心标定情况下,不能直接用机械中心代替旋转中心标定,而采用旋转中心标定,再叠加旋转和磁中心偏差进行改正的标定方案则能很好地满足当前设备准直的精度要求。
  • 图  1  CSNS环主要四极铁布局

    Figure  1.  Main quadrupoles’ layout of CSNS’s ring

    图  2  四极铁模型和设备坐标系示意

    Figure  2.  Diagram of the quadrupole model and device coordinate

    图  3  磁铁测磁平台

    Figure  3.  Magnetic measuring platform

    图  4  磁铁准直基准件

    Figure  4.  Magnet collimation reference parts

    图  5  旋转中心引出标定

    Figure  5.  Calibration of the rotation center

    图  6  旋转中心和磁中心X向偏差

    Figure  6.  X-direction deviation between rotation center and magnetic field center

    图  7  旋转中心和磁中心Y向偏差

    Figure  7.  Y-direction deviation between rotation center and magnetic field center

    图  8  旋转中心和机械中心X向偏差

    Figure  8.  X-direction deviation between rotation center and mechanical center

    图  9  旋转中心和机械中心Y向偏差

    Figure  9.  Y-direction deviation between rotation center and mechanical center

    表  1  CSNS环四极铁主要机械参数/ mm

    Table  1.   Main mechanical parameters of quadrupole of CSNS’s ring

    categoryaperture/mmmagnetic field length/mmmagnet core length/mmmagnet height/mmquantity
    206Q206410320100016
    272Q272900810134016
    222Q22245037010808
    253Q25362051012408
    下载: 导出CSV

    表  2  两次标定下机械中心与旋转中心偏差的偏差

    Table  2.   Deviation of deviation between mechanical center and rotation center under two calibrations

    magnet
    type
    maximum
    deviation/mm
    minimum
    deviation/mm
    deviation standard
    deviation/mm
    maximum
    deviation/mm
    minimum
    deviation/mm
    deviation standard
    deviation/mm
    X-directionY-direction
    206Q 0.04 −0.06 0.02 0.02 −0.04 0.01
    222Q 0.03 −0.06 0.03 0.05 −0.03 0.03
    253Q 0.04 −0.03 0.02 0.02 −0.05 0.02
    272Q 0.03 −0.04 0.02 0.05 −0.08 0.03
    下载: 导出CSV

    表  3  机械中心和旋转中心偏差统计

    Table  3.   Deviation statistics of mechanical center and rotation center

    magnet
    type
    maximum
    deviation/mm
    minimum
    deviation/mm
    deviation standard
    deviation/mm
    maximum
    deviation/mm
    minimum
    deviation/mm
    deviation standard
    deviation/mm
    X-directionY-direction
    206Q 0.26 −0.12 0.09 0.16 −0.10 0.06
    222Q 0.03 −0.18 0.06 0.12 −0.21 0.09
    253Q 0.07 −0.13 0.07 0.06 −0.17 0.07
    272Q 0.22 −0.14 0.10 0.09 −0.23 0.10
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-08-24
  • 录用日期:  2022-04-14
  • 修回日期:  2022-04-01
  • 网络出版日期:  2022-04-21
  • 刊出日期:  2022-07-20

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