Event-driven timing system based on MRF cPCI hardware for HLS-II

Chuan LI; Ji-Gang WANG; Ke XUAN; Gong-Fa LIU; Lin WANG; Wei-Min LI; Jing-Yi LI

doi:10.13538/j.1001-8042/nst.26.060401

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Event-driven timing system based on MRF cPCI hardware for HLS-II

NUCLEAR ELECTRONICS AND INSTRUMENTATION | Updated：2021-01-20

- Event-driven timing system based on MRF cPCI hardware for HLS-II
- Nuclear Science and Techniques Vol. 26, Issue 6, Article number: 060401(2015)
- Affiliations：
  
  1.National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
- Author bio：
  
  lichuan@ustc.edu.cn
  jingyili@ustc.edu.cn
- Funds：
- DOI：10.13538/j.1001-8042/nst.26.060401
  CLC：
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Chuan LI, Ji-Gang WANG, Ke XUAN, et al. Event-driven timing system based on MRF cPCI hardware for HLS-II. [J]. Nuclear Science and Techniques 26(6):060401(2015)
DOI：

Chuan LI, Ji-Gang WANG, Ke XUAN, et al. Event-driven timing system based on MRF cPCI hardware for HLS-II. [J]. Nuclear Science and Techniques 26(6):060401(2015) DOI： 10.13538/j.1001-8042/nst.26.060401.

摘要

Abstract

Hefei Light Source (HLS)-II is a vacuum ultraviole (VUV) synchrotron light source. A major upgrade of the light source was finished at the end of 2014. The timing system was rebuilt using compact peripheral component interconnect (cPCI) event-driven hardware to meet synchronization requirements of the machine. In the new system, the cPCI event-driven products manufactured by the micro-research finland (MRF) Oy are employed to achieve about 100 output signals with different interfaces. Device supports and drivers developed for common Experimental Physics and Industrial Control System (EPICS) records are used to access the registers on the timing modules. Five cPCI-bus input/output controllers (IOCs) distributed in different areas of the light source host timing modules for various subsystems. The delay resolution of this system is 9.8 ns for most channels and 9 ps for the channels used for triggering the electron gun and the injection kickers. The measured rms jitter of the output signal is less than 27 ps. Using the bucket chooser, this system enables the HLS-II to fill the storage ring with any designated bunch pattern. Benefitting from this upgrade, brightness and performance of the light source are significantly improved.

关键词

Keywords

Timing systemMicro-research finland (MRF)Event-drivenSynchrotron light source

references

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