高能同步辐射光源快速轨道反馈系统数据分发方案设计与实现

Wang Daoyuan; Jin Dapeng; Zhu Peng; Xie Zhexin; Zeng Lei; Zhang Yuliang; He Yongcheng

doi:10.11884/HPLPB202335.220379

高能同步辐射光源快速轨道反馈系统数据分发方案设计与实现

doi: 10.11884/HPLPB202335.220379

王道远^{1, 2, 3,},
金大鹏^{1, 2, 3, ,},
朱鹏^{1, 2, 3},
谢哲新^{1, 2, 3},
曾磊^{1, 2},
张玉亮^{1, 2, 3},
何泳成^{1, 2, 3}

1.
中国科学院高能物理研究所，北京 100049
2.
散裂中子源科学中心，广东东莞 523803
3.
中国科学院大学，北京 100049

详细信息

中图分类号: TL503.6
计量
- 文章访问数: 565
- HTML全文浏览量: 240
- PDF下载量: 85
- 被引次数: 0
出版历程
- 收稿日期: 2022-12-30
- 修回日期: 2023-04-14
- 录用日期: 2023-02-17
- 网络出版日期: 2023-04-21
- 刊出日期: 2023-06-15

Design and implementation of data transmission of fast orbit feedback system for HEPS

Wang Daoyuan^{1, 2, 3
,},
Jin Dapeng^{1, 2, 3
, ,},
Zhu Peng^{1, 2, 3},
Xie Zhexin^{1, 2, 3},
Zeng Lei^{1, 2},
Zhang Yuliang^{1, 2, 3},
He Yongcheng^{1, 2, 3}

1.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
2.
Spallation Neutron Source Science Center, Dongguan 523803, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds: supported by Youth Innovation Promotion Association (Y9291420K2)

More Information

Author Bio:
Wang Daoyuan, wangdaoyuan@ihep.ac.cn

Corresponding author: Jin Dapeng, jindp@ihep.ac.cn

摘要

摘要:
作为第四代同步辐射光源，高能同步辐射光源对束流轨道稳定性提出了极高的要求，即在500 Hz左右带宽范围内，储存环中束流轨道的水平和垂直方向稳定度要优于该方向束团均方根尺寸的10%。为实现上述目标，快速轨道反馈系统的延时要尽可能低。快速轨道反馈系统将束流位置监测器（BPM）数据从BPM电子学接收并分发至所有子站，其数据传输延时是系统的主要延时。对此，设计并实现了一种基于高性能现场可编程逻辑门阵列（FPGA）和高速收发技术的数据分发方案，来满足快速轨道反馈系统的低延时和高带宽的需求。经过验证平台的搭建与测试，系统数据分发总延时小于10 μs，且24 h内未出现误码，满足高能同步辐射光源快速轨道反馈系统的需求。
- 快速轨道反馈系统 /
- 高能同步辐射光源 /
- FPGA /
- 延时
Abstract:
High Energy Photon Source (HEPS), as a 4^th generation synchrotron radiation light source, has stringent requirement for beam orbit stability: the orbit fluctuations should be below 10% of the beam RMS sizes in both horizontal and vertical directions with a bandwidth around 500 Hz. Overall, the latency of the Fast Orbit FeedBack (FOFB) system is the key factor to achieve the requirement. Data transmission of the beam positions from the beam position monitor (BPM) electronics to all of the FOFB sub-stations is the key to achieve very low latency, as which contributes the largest part of the total FOFB system latency. Preliminary test results of prototype showed that the total latency of data transmission is less than 10 μs with no bit errors during data transmission, satisfying the requirements on the FOFB system of HEPS.
- fast orbit feedback system /
- HEPS /
- FPGA /
- latency

HTML全文

Figure 1. FOFB architecture of HEPS

下载: 全尺寸图片幻灯片

Figure 2. Globally encoded BPM data format

下载: 全尺寸图片幻灯片

Figure 3. Logic architecture of data encoding and transmission of FOFB

下载: 全尺寸图片幻灯片

Figure 4. Flow chart of HEPS’s FOFB

下载: 全尺寸图片幻灯片

Figure 5. Latency of data transmission of FOFB

下载: 全尺寸图片幻灯片

Figure 6. Test station architecture of FOFB

下载: 全尺寸图片幻灯片

Figure 7. Test diagram of data transmission of FOFB

下载: 全尺寸图片幻灯片

Figure 8. Latency of local BPM data transmission

下载: 全尺寸图片幻灯片

Figure 9. Latency of local BPM data encoding

下载: 全尺寸图片幻灯片

Figure 10. Latency of global BPM data transmission

下载: 全尺寸图片幻灯片

Table 1. Results of data transmission latency

T₁^a/ns	T₂^b/ns	T₃^c/ns	(T₁+T₂+8T₃)/ns
821	705	950	9 126
^a The latency of local BPM data transmission, estimated with the length of optical fibers between BI stations and FOFB sub-station ^b The latency of local BPM data encoding, tested by ILA ^c The latency of global BPM data transmission, estimated with the length of optical fibers between two adjacent FOFB sub-stations

下载: 导出CSV

参考文献(16)

[1]	Jiao Yi, Chen Fusan, He Ping, et al. Modification and optimization of the storage ring lattice of the High Energy Photon Source[J]. Radiation Detection Technology and Methods, 2020, 4(4): 415-424. doi: 10.1007/s41605-020-00189-7
[2]	Jiao Yi, Xu Gang, Cui Xiaohao, et al. The HEPS project[J]. Journal of Synchrotron Radiation, 2018, 25(6): 1611-1618. doi: 10.1107/S1600577518012110
[3]	Jiang Bocheng, Hou J, Yin C X, et al. Status of the SSRF fast orbit feedback system[C]//Proceedings of IPAC2012. 2012: 2855-2857.
[4]	Uzun I S, Bartolini R, Rehm G, et al. Initial design of the fast orbit feedback system for diamond light source[C]//Proceedings of the 10th International Conference on Accelerator & Large Experimental Physics Control Systems. 2005.
[5]	Schlott V, Böge M, Keil B, et al. Fast orbit feedback and beam stability at the Swiss Light Source[J]. AIP Conference Proceedings, 2004, 732(1): 174-181.
[6]	Lipa R, Arnold N, Bui H, et al. APS fast orbit feedback system upgrade[C]//Proceedings of PAC2013. 2013: 1301-1303.
[7]	Singh O, Bacha B, Blednykh A, et al. NSLS-II BPM and fast orbit feedback system[C]//Proceedings of IBIC2013. 2013: 316-322.
[8]	XILINX. 7 Series FPGAs GTX/GTH transceivers user guide[EB/OL]. (2018-08-14). https://docs.xilinx.com/v/u/en-US/ug476_7Series_Transceivers.
[9]	XILINX. 7 Series DSP48E1 slice user guide[EB/OL]. (2018-03-27). https://docs.xilinx.com/v/u/en-US/ug479_7Series_DSP48E1.
[10]	Borland M, Abliz M, Arnold N, et al. The upgrade of the advanced photon source[C]//Proceedings of the 9th International Particle Accelerator Conference. 2018: 2872-2877.
[11]	XILINX. 7 Series FPGAs memory resources user guide[EB/OL]. (2019-07-03). https://docs.xilinx.com/v/u/en-US/ug473_7Series_Memory_Resources.
[12]	XILINX. FIFO generator v13.2 LogiCORE IP product guide[EB/OL]. (2017-10-04). https://docs.xilinx.com/v/u/en-US/pg057-fifo-generator.
[13]	Zhu P, Jin D P, Zhang Y L, et al. The status of fast obit feedback system of HEPS[C]//Proceedings of the 18th International Conference on Accelerator & Large Experimental Physics Control Systems. 2021: 540-543.
[14]	XILINX. 7 Series FPGAs clocking resources user guide[EB/OL]. (2018-07-30). https://docs.xilinx.com/v/u/en-US/ug472_7Series_Clocking.
[15]	XILINX. Integrated logic analyzer v6.2 LogiCORE IP product guide[EB/OL]. (2016-10-05). https://docs.xilinx.com/v/u/en-US/pg172-ila.
[16]	Huang Rong, Wang Runhan, Xiao Wufeng, et al. Transmission performance of OM3, OM4, and OM5 multimode fibers[C]//Proceedings of SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018). 2019: 110483M.