中文摘要：

针对多通道γ射线工业计算机断层扫描（CT）的高速数据采集和远距离传输需求,应用点对点传输,设计了基于数据报协议（UDP）的现场可编程门阵列（FPGA）数据采集传输系统。系统增加FPGA计数单元,可扩展更多通道进行数据采集。主控以FPGA作为核心,将UDP用Verilog编程的方式在FPGA中实现,控制以太网接口芯片将数据传至上位机,上位机界面与底层传输电路的相互通信利用VC＋＋6.0编程实现。实验结果表明：在100 Mb/s全双工模式下进行网络测试,其网络利用率稳定在93%,传输速度为93 Mb/s（即11.625 MB/s）;上位机能正确地接收到底层电路所发送的数据;能够满足γ射线工业CT高速数据采集系统在速度和距离上的传输要求。

英文摘要：

In order to meet the requirements of high speed and multi-channel of data acquisition and transmission for γ-ray industrial Computed Tomography（ CT）, the system based on User Datagram Protocol（ UDP） with Field-Programmable Gate Array（ FPGA） controlling was designed. This system increased FPGA counting unit, so more channels could be used for data collection. Main control was based on FPGA as the core, which used UDP protocol and was implemented by Verilog programming. Then, data was transmitted to upper computer for image reconstruction by Ethernet interface chip. The upper computer interface and mutual communication with the underlying transmission circuit realized by VC ＋ ＋ 6. 0 programming.The experimental results indicate that, in the 100 Mb / s full-duplex mode, the network utilization rate can reach 93%, and transmission speed is 93 Mb / s（ 11. 625 MB / s）, and the upper computer can receive data correctly in a long distance. So, it can satisfy the system requirements of rapid speed and long distance for γ-ray industrial CT.