A new modulator controller of the PLS linac

Conference Record of the Twenty-Fifth International Power Modulator Symposium, 2002 and 2002 High-Voltage Workshop. Pub Date : 2002-06-30 DOI:10.1109/MODSYM.2002.1189477

S.C. Kim, S. Park, S.H. Kim, Y. Han, S. Nam

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引用次数: 6

Abstract

The 2-GeV electron linac at Pohang accelerator laboratory (PAL) has been operated continuously as a full energy injector for the Pohang Light Source (PLS) since Dec. 1994. There have been continuous efforts to improve the klystron-modulator (K&M) system to make it more stable and reliable. To improve self-diagnostic, operation, monitoring, and remote communication, we developed a new modulator controller based on an industrial PC platform. The modulator controller mainly consisted of an interlock signal conditioning module, a fast pulse signal-conditioning module, and the main PC platform. Operating system of the PC is Windows NT 4.0, and application software is developed with C++. The interlock signal-conditioning module generally carries digital and slowly varying clean analog signals. The fast pulse signal-conditioning module is used for preconditioning fast pulse and DC signals that inherently have high noise levels, such signals as a beam voltage, a beam current, an EOLC current, a HVDC voltage, and a HVDC current. All operation data of the K&M system can be acquired and saved in real time. We are upgrading the main PLS, control system with EPICS. The industrial PC platform will function as an input/output controller (IOC) in the future EPICS PLS control system.

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一种新型的PLS直线器调制器控制器

浦项加速器实验室(PAL)的2 gev电子直线加速器自1994年12月以来一直作为浦项光源(PLS)的全能量注入器连续运行。人们一直在努力改进速调管调制器(K&M)系统，使其更加稳定可靠。为了提高自诊断、操作、监控和远程通信能力，我们开发了一种基于工业PC平台的调制器控制器。调制器控制器主要由联锁信号调理模块、快速脉冲信号调理模块和主PC平台组成。PC机操作系统为Windows NT 4.0，应用软件采用c++开发。联锁信号调理模块通常携带数字和缓慢变化的纯模拟信号。快速脉冲信号调理模块用于预置具有高噪声级的快速脉冲和直流信号，如波束电压、波束电流、EOLC电流、HVDC电压和HVDC电流等信号。可实时采集并保存K&M系统的所有运行数据。我们正在用EPICS升级主PLS控制系统。工业PC平台将在未来的EPICS PLS控制系统中作为输入/输出控制器(IOC)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Conference Record of the Twenty-Fifth International Power Modulator Symposium, 2002 and 2002 High-Voltage Workshop.

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