| Paper | Title | Page |
|---|---|---|
MOPA27 |
The Progress in BPM Electronic System of CSNS RCS | |
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| The Beam Position Monitor (BPM) system is designed for the Rapid Cycling Synchrotron (RCS) in China Spallation Neutron Source (CSNS) to acquire beam position. This article introduces the design and implementation of the BPM electronic system. In the BPM system, signal is generated by diagonally cut electrode with dynamic range of 75dB (5.8mv~32V) and frequency range of 1MHz to 2.4MHz. Signals from the four electrodes of one test point are processed and digitalized individually, and the position is calculated using ⊿/∑ method in FPGA. It is the key point of our design to receive signal with large dynamic range while keeping low noise figure. Analog circuit with much consideration is described, and the primary test result of the system is provided in the end of this article. | ||