A laser-driven proton accelerator based on the 2 PW ultra-intense laser facility is under development at Peking University, aiming at compact proton radiotherapy applications[1]. Compared with conventional RF accelerators, laser-driven acceleration features shot-to-shot operation, broad energy spectra, and large parameter fluctuations, which impose new requirements on the control system,...
针对核孔膜制备过程中对重离子束流辐照均匀性、卷膜传输高精度同步性以及系统长期运行可靠性的严苛要求，本文设计并实现了一套基于实验物理与工业控制系统（EPICS）架构的分布式核孔膜辐照终端控制系统。该系统旨在解决多物理参量强耦合、控制逻辑复杂及实时性要求高的技术难题，实现了对辐照过程的全局闭环调控与精细化管理。在系统架构层面，采用分层式设计，以输入输出控制器（IOC）为核心，通过以太网及现场总线将卷膜运动控制、束流探测与反馈、真空及环境监测等子系统集成为统一的实时控制网络。针对卷膜系统的精密控制难题，建立了卷径实时估算模型与张力-速度双闭环控制算法，有效抑制了卷绕过程中的线速度波动与膜材褶皱，实现了恒张力、恒线速度的高品质传输。在束流探测与反馈控制方面，设计了多传感器探测系统，开发了束流强度、均匀度与注量的多参数控制策略，确保了核孔密度的均一性。系统集成了基于Channel...
当前，先进阿秒激光设施正处于关键建设阶段，高能量、高重频飞秒激光作为其核心驱动源，对装置的整体性能具有决定性影响。为打破该领域关键技术长期依赖进口的局面，团队自2023年起正式启动超快激光核心技术的自主研发攻关，并于2025年底顺利完成激光研制项目的全面验收。本报告将重点介绍自主研发的激光控制系统，详细阐述其软件架构与数据体系设计、与EPICS控制系统的集成对接方案，以及在智能调控技术方面取得的阶段性进展；此外，还将对装置的总控系统作简要介绍。
An IOC Dynamical control tool was developed in CSNS. With this tool, an IOC agent is running as a companian with the running IOC in each machine. The IOC is runing with a IOCStats module, and the IOC agent collects the IOC running information provided by the IOCAdminSoft.db, and then send these informstion to a MQQT broker with MQTT protocol.A backend server consumes the MQTT messages and...
Large scientific facilities such as accelerators rely on multiple EPICS IOCs to coordinate experimental devices. However, distributed deployment and heterogeneous runtime environments make software updates, status monitoring, and fault handling difficult to manage consistently. To address the isolated network environment, complex software dependencies, and hardware-specific placement...
上海硬X射线自由电子激光装置（SHINE）运行过程中产生大量设备状态、束流参数及报警信息，传统单点报警方式难以有效反映多设备、多系统之间的关联关系。针对这一问题，构建面向SHINE运行的综合报警与智能诊断系统。在底层保持EPICS CA/PVA设备接入方式的基础上，上层引入NNG通信框架，建立统一的数据交互机制，实现实时数据、Kafka报警信息及Archiver历史数据的统一接入与组织。系统结合PV语义、设备系统、物理区域、报警时间关系及历史数据变化，对离散报警进行事件聚合、相关PV筛选和关联分析，并形成异常事件及根因候选结果，为SHINE运行状态分析、异常定位和故障诊断提供辅助。
Stable and reproducible synchrotron beamline operation requires coordinated control of optical elements, beam diagnostics, and detector acquisition. Integrating these functions with model-assisted optimization requires consistent interfaces between hardware execution, experimental data, and operating decisions. To address these requirements, a beamline control system based on EPICS and...
We developed a modular data acquisition platform that began at the Dalian Coherent Light Source (DCLS) and was extended in the current deployment at the Dalian Advanced Light Source (DALS). Its principal path archives operational data through EPICS Channel Access. PV subscriptions are distributed across independently supervised collector processes, allowing acquisition capacity to grow by...
As a high-performance synchrotron radiation facility, the Shanghai Synchrotron Radiation Facility (SSRF) relies on its control system as the core support to ensure stable beam current, equipment safety and efficient photon delivery. To address issues encountered by the control system during long-term operation, including hardware aging, communication bottlenecks, end-of-support operating...
This report presents the establishment of the operational environment for the SHINE accelerator control system. The environment is built on a virtualization infrastructure combining Sangfor virtual system with Anolis OS, providing autonomous and controllable capability as well as operational stability. An LDAP-based real-name account management system centralizes user identity storage and...
Within the EPICS framework, Archiver Appliance is commonly employed as the management and storage engine for Process Variable (PV) data. Its stability and ease of use have been validated over the long term at major international scientific facilities such as LCLS, NSLS-II, and LANSCE. However, as the scale of control systems continues to expand—the accelerator section of the China Initiative...
