强流质子加速器PXIe控制器的子控制系统

针对一台用于加速器驱动次临界系统(ADS)的强流质子加速器,即ADS注入器Ⅱ,开展其定时系统和快保护系统的研究工作,设计了一款可在这两个系统中应用的PXIe控制器。该控制器基于现场可编程门阵列设计,可实现光纤通信、PXIe总线通信、延时触发信号输出等功能。其中,光纤通信功能用于实现各PXIe控制器之间的数据传输;PXIe总线通信功能主要是为了实现控制器与工控机之间的数据交互;延时触发信号输出功能可以给出精确的低电压晶体管-晶体管逻辑电平标准的时序触发信号,从而保证加速器的各子系统和设备能够按照一定的时序协调一致地工作。

Sub-control system based on PXIe controller for high intensity proton accelerator

For accelerator driven sub-critical system (ADS) injector Ⅱ, we studied its fast protection system and timing system, and designed a PXIe controller which could be used to construct fast protection system and timing system. The PXIe controller could achieve optical fiber communication, PXIe bus communication, delay trigger signal output function, etc. Among them, the optical fiber communication function is used to achieve data transmission between each PXIe controller; PXIe bus communication function is primarily used to achieve data exchange between the controller and IPC; delayed trigger signal output function can give precise timing trigger signals, which can ensure all subsystems and equipments work in accordance with certain timing.