LLNL, Livermore, USA
SLAC, Menlo Park, California, USA
The Lawrence Livermore National Laboratory (LLNL) is delivering the Dual-mode Energetic Laser for Plasma and High Intensity Science (DELPHI) system to SLAC as part of the MEC-U project to create an unprecedented platform for high energy density experiments. The DELPHI control system is required to deliver short and/or long pulses at a 10 Hz firing rate with femto/pico-second accuracy sustained over fourteen 12-hour operator shifts to a common shared target chamber. The MEC-U system requires the integration of the control system with SLAC provided controls related to personnel safety, machine safety, precision timing, data analysis and visualization, amongst others. To meet these needs along with the system’s reliability, availability, and maintainability requirements, LLNL is delivering an EPICS based control system leveraging proven SLAC technology. This talk presents the conceptual design of the DELPHI control system and the methods planned to ensure its successful commissioning and delivery to SLAC.
TUPDP128
SLAC, Menlo Park, California, USA
The Matter in Extreme Conditions Upgrade (MECU) project is a DOE 403.13b project designated to be built on the SLAC National Accelerator Laboratory campus within this decade. The facility will deliver the Linac Coherent Light Source (LCLS) XFEL in combination with a high energy long pulse (HE-LP) laser system and a rep-rated laser built by two other DOE labs, the Laser Lab for Energetics (LLE) and Lawrence Livermore National Laboratory (LLNL) respectively to experiment target chambers. The control system design for this facility will utilize EPICS throughout the SLAC, LLE and LLNL major subsystems, and to the extent possible a common hardware and software suite. The effort is a major undertaking in control system design and build via collaboration between the three partner labs of the project. This talk will review the control system architecture concept for MECU, from industrial controls to high-level automation within the context of the concept of operations, as well as status of the project.
SLAC, Menlo Park, California, USA
The LCLS-II Preemptive Machine Protection System (PMPS) safeguards diagnostics, optics, beam-shaping components and experiment apparatus from damage by excess XFEL average power and single-shots. The dynamic nature of these systems requires a somewhat novel approach to a machine protection system design, relying more heavily on preemptive interlocks and automation to avoid mismatches between device states and beam parameters. This is in contrast to reactive machine protection systems. Safe beam parameter sets are determined from the combination of all integrated devices using a hierarchical arrangement and all state changes are held until beam conditions are assured to be safe. This machine protection system design utilizes the Beckhoff industrial controls platform and EtherCAT, and is woven into the LCLS subsystem controllers as a code library and standardized hardware interface.
SLAC, Menlo Park, California, USA
The LCLS-II Experiment System Vacuum Controls Architecture is a collection of vacuum system design templates, interlock logics, supported components (eg. gauges, pumps, valves), interface I/O, and associated software libraries which implement a baseline functionality and simulation. The architecture also includes a complement of engineering and deployment tools including cable test boxes or hardware simulators, as well as some automatic configuration tools. Vacuum controls at LCLS spans from rough vacuum in complex pumping manifolds, protection of highly-sensitive x-ray optics using fast shutters, maintenance of ultra-high vacuum in experimental sample delivery setups, and beyond. Often, the vacuum standards for LCLS systems exceeds what most vendors are experienced with. The system must maintain high-availability, while also remaining flexible and handling ongoing modifications. This paper will review the comprehensive architecture, the requirements of the LCLS systems, and introduce how to use it for new vacuum system designs. The architecture is meant to influence all phases of a vacuum system lifecycle, and ideally could become a shared project for installations beyond LCLS-II.
SLAC, Menlo Park, California, USA
The Linac Coherent Light Source (LCLS) has been undergoing upgrades for several years now through at least two separate major projects: LCLS-II a DOE 403.13b project responsible for upgrading the accelerator, undulators and some front-end beam delivery systems, and the LCLS-II Strategic Initiative or L2SI project which assumed responsibility for upgrading the experiment endstations to fully utilize the new XFEL machine capabilities to be delivered by LCLS-II. Both projects included scope to design, install and commission a control system prepared to handle the risks associated with the tenfold increase in beam power we will eventually achieve. This paper provides an overview of the new control system architecture from the LCLS-II and L2SI projects and status of its commissioning.