DCCT system design for SSRF storage ring

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Shanghai Institute of Applied Physics, Shanghai 201800, China [1 ]
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He Jishu | 2007年 / 6卷 / 477-480期
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摘要：
A precise DC current transformer (DCCT) system is a must for commissioning and operation of the storage ring of Shanghai Synchrotron Radiation Facility (SSRF). Hardware of the system to be completed consists of a Bergoz NPCT sensor, a NI PXI digital voltage meter and a PXI controller. The software was developed on Lab VIEW platform to communicate with accelerator control system via EPICS Shared Memory IOCcore interface. Bench test and simulation results of the DCCT showed that 2 μA resolution for DC current measurement and 0.5% relative accuracy for beam lifetime measurement could be achieved.
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