Analysis of calibration schemes for HEPS sextupole

Yuanying HAN; Yafeng WU; Lan DONG; Tong WANG; Shang LU; Luping YAN; Luyan ZHANG; Xiaoyang LIU; Haoyue YAN; Na MA; Zhenqiang HE; Zhiyong KE; Lingling MEN; Bo LI; Xiaolong WANG; Jing LIANG

doi:10.11889/j.0253-3219.2024.hjs.47.020201

NUCLEAR TECHNIQUES, Volume. 47, Issue 2, 020201(2024)

Analysis of calibration schemes for HEPS sextupole

Yuanying HAN¹, Yafeng WU^1、*, Lan DONG^1,2, Tong WANG^1,2, Shang LU¹, Luping YAN¹, Luyan ZHANG¹, Xiaoyang LIU¹, Haoyue YAN¹, Na MA^1,2, Zhenqiang HE^1,2, Zhiyong KE^1,2, Lingling MEN^1,2, Bo LI^1,2, Xiaolong WANG^1,2, and Jing LIANG^1,2

Author Affiliations

¹Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

²Dongguan Neutron Science Center, Dongguan 523803, China

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Figures & Tables(11)

Fig. 1. Snapshot of measuring needle in the punching datum plane

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Fig. 2. User interface of DMIS software for creating the coordinate system

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Fig. 3. Snapshot of measuring needle in the pole seam plane

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Fig. 4. Diagram of the calibration of the hexacode iron by laser tracker

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Fig. 5. Diagram of the calibration of the hexacode iron by 3D CMM

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Fig. 6. Diagram of the sextupole model and device coordinates

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Table 1. Main mechanical parameters of the sextupole of HEPS ring
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Table 1. Main mechanical parameters of the sextupole of HEPS ring
种类
Category
孔径
Aperture / mm
极缝距离
Polar distance / mm
磁铁长度
Magnet length / mm
磁铁高度
Magnet height / mm
SF1/2 27 8.0 304 421
SD1/4 32 11.6 374 434
SD2/3 27 8.0 350 474

Table 2. Calibration repeatability of the coordinate system before and after rotation of the HEPS sextupole
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Table 2. Calibration repeatability of the coordinate system before and after rotation of the HEPS sextupole
标定重复性
Repeatability
ΔX
/ mm
ΔY
/ mm
ΔZ
/ mm
旋转前坐标系
Pre-rotation coordinate system
0.004 0.003 0.004
旋转后坐标系
Post-rotation coordinate system
0.005 0.004 0.003

Table 3. Pole seam deviation statistics of the HEPS sextupoles (63 in total)
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Table 3. Pole seam deviation statistics of the HEPS sextupoles (63 in total)
磁铁类型
Magnet type
最大偏差
Maximum deviation / mm
最小偏差
Minimum deviation / mm
标准偏差
Deviation standard / mm
SF1/2 0.046 -0.044 0.012
SD1/4 0.053 -0.045 0.014
SD2/3 0.062 -0.081 0.015

Table 4. Reference point deviation statistics before and after coordinate system rotation (63 sextupoles)

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Table 4. Reference point deviation statistics before and after coordinate system rotation (63 sextupoles)

磁铁类型 Magnet type	X轴 X-direction			Y轴 Y-direction
磁铁类型 Magnet type	最大偏差 Maximum deviation / mm	最小偏差 Minimum deviation / mm	标准偏差 Deviation standard / mm	最大偏差 Maximum deviation / mm	最小偏差 Minimum deviation / mm	标准偏差 Deviation standard / mm
SF1/2	0.108	-0.123	0.058	0.047	-0.048	0.022
SD1/4	0.083	-0.146	0.065	0.061	-0.061	0.028
SD2/3	0.214	-0.188	0.088	0.101	-0.100	0.042

Table 5. Statistics of mechanical center deviation before and after coordinate system rotation (63 sextupoles)
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Table 5. Statistics of mechanical center deviation before and after coordinate system rotation (63 sextupoles)
磁铁类型
Magnet type
最大值
Maximum value / mrad
最小值
Minimum value / mrad
标准值
Deviation value / mrad
SF1/2 0.315 -0.360 0.175
SD1/4 0.244 -0.431 0.194
SD2/3 0.628 -0.552 0.264

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Yuanying HAN, Yafeng WU, Lan DONG, Tong WANG, Shang LU, Luping YAN, Luyan ZHANG, Xiaoyang LIU, Haoyue YAN, Na MA, Zhenqiang HE, Zhiyong KE, Lingling MEN, Bo LI, Xiaolong WANG, Jing LIANG. Analysis of calibration schemes for HEPS sextupole[J]. NUCLEAR TECHNIQUES, 2024, 47(2): 020201

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Paper Information

Category: Research Articles

Received: May. 9, 2023

Accepted: --

Published Online: Apr. 24, 2024

The Author Email: WU Yafeng (吴亚峰)

DOI:10.11889/j.0253-3219.2024.hjs.47.020201

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Main mechanical parameters of the sextupole of HEPS ring

Table 1. Main mechanical parameters of the sextupole of HEPS ring

Table 2. Calibration repeatability of the coordinate system before and after rotation of the HEPS sextupole

Table 2. Calibration repeatability of the coordinate system before and after rotation of the HEPS sextupole

Table 3. Pole seam deviation statistics of the HEPS sextupoles (63 in total)

Table 3. Pole seam deviation statistics of the HEPS sextupoles (63 in total)

Table 4. Reference point deviation statistics before and after coordinate system rotation (63 sextupoles)

Table 4. Reference point deviation statistics before and after coordinate system rotation (63 sextupoles)

Table 5. Statistics of mechanical center deviation before and after coordinate system rotation (63 sextupoles)

Table 5. Statistics of mechanical center deviation before and after coordinate system rotation (63 sextupoles)