核能开发加速器质谱仪控制系统的研制

Development of Control System for Accelerator Mass Spectrometer in Nuclear Energy Exploitation

核能开发加速器质谱仪是由中国原子能科学研究院自主研发的加速器科研装置。该装置采用了真空绝缘的高压注入方式,克服了大气绝缘型质谱仪体积大、建造成本高以及存在高压安全隐患的弊端。同时,对于15 MPa的剥离气体注入,采用PID控制回路,精度达到0.1%;离子源靶锥控制采用伺服电机驱动,且具有微调功能,微调精度达到0.04°。控制系统功能完善,针对高精度测控需要,采用了16 bit的西门子1500PLC架构;同时强化了安全联锁设计,增强了装置的安全可靠性。设计完成的质谱仪结构紧凑,占地面积小,控制精度高。经过长时间运行表明,控制系统稳定可靠,满足了装置的各项功能要求。

The nuclear energy development accelerator mass spectrometer is an accelerator independently developed by China Institute of Atomic Energy.The device adopts a vacuum insulation and high-pressure injection method,overcoming the drawbacks of large volume,high construction cost,and high voltage safety hazards of atmospheric insulation mass spectrometers.At the same time,for the injection of 15 MPa stripping gas,a PID control circuit is used,with an accuracy of 0.1%.The ion source target control is driven by a servo motor and has a fine-tuning function,with a fine-tuning accuracy of 0.04 °.The control system has complete functions and adopts a 16 bit Siemens 1500 PLC architecture for high-precision measurement and control needs;At the same time,the safety interlock design has been strengthened,enhancing the safety and reliability of the device.The designed mass spectrometer has a compact structure,small land area occupied,and high control accuracy.After a long period of operation,it has been shown that the control system is stable and reliable,meeting the various functional requirements of the device.