Gangjia ZHAI, Xiaokang SUN, Ke XUAN, Liuguo CHEN, Chuan LI, Gongfa LIU. The design of Hefei advanced light facility timing system[J]. NUCLEAR TECHNIQUES, 2022, 45(12): 120102
- NUCLEAR TECHNIQUES
- Vol. 45, Issue 12, 120102 (2022)
Fig. 1. Layout of HALF
Fig. 2. Schematic diagram of the actual working sequence of each subsystem after receiving the trigger from the timing system (the horizontal axis only represents the chronological order)
Fig. 3. Hardware structure diagram of timing system
Fig. 4. Schematic diagram of arbitrary bucket filling in storage ring
Fig. 5. Software design of timing system
Fig. 6. Operation interface of timing system
Fig. 7. Hardware structure diagram of the prototype system (a) and photo of a prototype system (b)
Fig. 8. Jitter result of RF clock (arrows point to enlarged test results)
Fig. 9. Oscilloscope output without DC (a) and with DC (b) (arrows point to enlarged test results)
Fig. 10. Graph of optical fiber transmission delay with temperature
Fig. 11. Measurements of delay adjustment (a) and delay range (b) (arrows point to enlarged test results)
Fig. 12. Test result of delay adjustment (a) and test result of pulse width adjustment (b)
Fig. 13. Measurements of the first four pulse width adjustment range (a) and other pulses width range (b) (arrows point to enlarged test results)
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Table 1. Design specifications of HALF timing system
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Table 2. The timing system of some accelerator facilities
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Table 3. Two frequency design schemes of injection and storage ring
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Table 4. Event code distribution of timing system
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Table 5. Test results of DC
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