The development of laser performance models having real-time prediction capability for the OMEGA EP laser system has been essential in meeting requests from its user community for increasingly complex pulse shapes tha...The development of laser performance models having real-time prediction capability for the OMEGA EP laser system has been essential in meeting requests from its user community for increasingly complex pulse shapes that span a wide range of energies. The laser operations model PSOPS provides rapid and accurate predictions of OMEGA EP lasersystem performance in both forward and backward directions, a user-friendly interface and rapid optimization capability between shots. We describe the model’s features and show how PSOPS has allowed real-time optimization of the lasersystem configuration in order to satisfy the demands of rapidly evolving experimental campaign needs. We also discuss several enhancements to laser-system performance accuracy and flexibility enabled by PSOPS.展开更多
安徽大学强光磁试验装置由一台红外自由电子激光装置与六个实验站组成,其中自由电子激光装置控制系统采用实验物理与工业控制系统(Experimental Physics and Industrial Control System,EPICS)作为开发框架。基于EPICS分布式控制架构,...安徽大学强光磁试验装置由一台红外自由电子激光装置与六个实验站组成,其中自由电子激光装置控制系统采用实验物理与工业控制系统(Experimental Physics and Industrial Control System,EPICS)作为开发框架。基于EPICS分布式控制架构,对安徽大学自由电子激光装置各子系统控制进行了详细的设计研究。在控制系统网络部署方面,引入虚拟局域网(Virtual Local Area Network,VLAN)技术构建运行环境,显著提升了系统可靠性与部署效率。目前已完成开发的系统运行表明,该控制系统具有运行高效、稳定可靠等特点,其设计思路和实施方法可为同类控制系统的开发提供参考。展开更多
针对大视场(field of view,FOV)、宽波段、高精度的星载激光告警成像需求,开展了基于光谱补偿技术的超大视场成像光学系统设计。设计并实现了182°成像视场的超广角光学系统,并通过滤光片光谱透过率设计对探测器光谱响应不均匀性进...针对大视场(field of view,FOV)、宽波段、高精度的星载激光告警成像需求,开展了基于光谱补偿技术的超大视场成像光学系统设计。设计并实现了182°成像视场的超广角光学系统,并通过滤光片光谱透过率设计对探测器光谱响应不均匀性进行了有效补偿。通过鬼像分析优化了光学系统的结构布局,并提出了系统的杂散光抑制措施。试验结果表明:采用所提光谱补偿措施,在实现太阳直射光抑制的同时,光学系统在激光告警波段内的光谱响应度差异由8.0 dB降低至0.5 dB;采用滤光片与衰减片分离放置的结构形式,杂散光强度与信号光主峰强度的比值降低至1.7×10-5,实现了杂散光的有效抑制。展开更多
基金based on work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856the University of Rochesterthe New York State Energy Research and Development Authority。
文摘The development of laser performance models having real-time prediction capability for the OMEGA EP laser system has been essential in meeting requests from its user community for increasingly complex pulse shapes that span a wide range of energies. The laser operations model PSOPS provides rapid and accurate predictions of OMEGA EP lasersystem performance in both forward and backward directions, a user-friendly interface and rapid optimization capability between shots. We describe the model’s features and show how PSOPS has allowed real-time optimization of the lasersystem configuration in order to satisfy the demands of rapidly evolving experimental campaign needs. We also discuss several enhancements to laser-system performance accuracy and flexibility enabled by PSOPS.
文摘安徽大学强光磁试验装置由一台红外自由电子激光装置与六个实验站组成,其中自由电子激光装置控制系统采用实验物理与工业控制系统(Experimental Physics and Industrial Control System,EPICS)作为开发框架。基于EPICS分布式控制架构,对安徽大学自由电子激光装置各子系统控制进行了详细的设计研究。在控制系统网络部署方面,引入虚拟局域网(Virtual Local Area Network,VLAN)技术构建运行环境,显著提升了系统可靠性与部署效率。目前已完成开发的系统运行表明,该控制系统具有运行高效、稳定可靠等特点,其设计思路和实施方法可为同类控制系统的开发提供参考。
文摘针对大视场(field of view,FOV)、宽波段、高精度的星载激光告警成像需求,开展了基于光谱补偿技术的超大视场成像光学系统设计。设计并实现了182°成像视场的超广角光学系统,并通过滤光片光谱透过率设计对探测器光谱响应不均匀性进行了有效补偿。通过鬼像分析优化了光学系统的结构布局,并提出了系统的杂散光抑制措施。试验结果表明:采用所提光谱补偿措施,在实现太阳直射光抑制的同时,光学系统在激光告警波段内的光谱响应度差异由8.0 dB降低至0.5 dB;采用滤光片与衰减片分离放置的结构形式,杂散光强度与信号光主峰强度的比值降低至1.7×10-5,实现了杂散光的有效抑制。
