Conveners
WEMG Mini-Orals (MC01, MC05, MC10)
- Chris Roderick (European Organization for Nuclear Research)
The Laser MegaJoule, a 176-beam laser facility developed by CEA, is located near Bordeaux. It is part of the French Simulation Program, which combines improvement of theoretical models used in various domains of physics and high performance numerical simulation. It is designed to deliver about 1.4 MJ of energy on targets, for high energy density physics experiments, including fusion...
It is 2025 and the SKA Telescope Control System has come a long way since the start of construction. The outline of the software architecture and some key technology decisions (including the choice of Tango) were made early. To keep the geographically distributed teams engaged, and avoid creating silos and fragmentation, development of virtually all the software components started in...
A Muon Linear accelerator (Muon Linac) for the muon g-2/EDM experiment is currently under construction at Japan Proton Accelerator Research Complex (J-PARC). The objective of this project is to accelerate thermal muons (25 meV at 300 K) to 212 MeV, marking the worldโs first implementation of muon acceleration.
Development of the control system for the Muon Linac began in 2024. Core...
EuAPS (EuPRAXIA Advanced Photon Source) is a project carried out in the EuPRAXIA context and financed by the Italian Ministry in the Recovery Europe plan framework. A new advanced betatron radiation source, obtained by exploiting plasma LWFA, is currently being realized at the Laboratori Nazionali di Frascati of INFN in Italy and will be operated as user facility. Several elements of EuAPS are...
The SLAC National Accelerator Laboratory's upgrade to the LCLS-II, featuring a 4 GeV superconducting linear accelerator with 37 cryomodules and two helium refrigeration systems supporting 4 kW at 2.0 K, represents a significant advancement in accelerator technology. Central to this upgrade is a 2K system with five stages of centrifugal cold compressors, operating across a pressure range from...
A challenge that industrial particle accelerators face is the high amounts of noise in sensor readings. This noise obscures essential beam diagnostic and operational data, limiting the amount of information that is relayed to machine operators and beam instrumentation engineers. Machine learning-based techniques have shown great promise in isolating noise patterns while preserving...
The NSLS-II upgrade program investigates the imple-mentation of complex bend magnets based on permanent magnet quadrupoles (PMQs) to achieve ultra-low emit-tance and enhanced brightness. While PMQs provide high field gradients and compact lattice configurations, they also introduce challenges in tunability, thermal stability, radiation resistance, and field quality control. This paper presents...
Abstract
The Los Alamos Neutron Science Center (LANSCE ) has completed a significant modernization effort, migrating from the legacy RICE control system to an entirely EPICS-based infrastructure. A key enabler of this transition has been the development and deployment of modular, object-oriented Industrial I/O (IIO) architectures on National Instruments (NI) cRIO platforms. The Industrial I/O...
Brookhaven National Laboratory (BNL) is currently developing new hardware description language (HDL) code and embedded software for the Electron-Ion Collider (EIC) control system. Part of this effort is modernizing the development process itself, leveraging methodologies and tools that were initially targeted at the software world. These methods include effective source control and project...
A proton pulse charge calculation algorithm in the Beam Power Limiting System (BPLS) at the Spallation Neutron Source (SNS) was developed and implemented in an FPGA. The algorithm calculates one-minute running average of the pulse charges and issues a fault to the Personal Protection System (PPS) and the Machine Protection System (MPS) when a limit is reached.
A bit-accurate model of the...
The LCLS-II is the first X-ray Free Electron Laser (XFEL) to utilize continuous-wave superconducting accelerator technology (CW-SCRF), capable of delivering X-ray pulses at repetition rates up to 1 MHz. The LCLS-II fast wire scanner motion control system, based on the Aerotech Ensemble controller, is designed to measure the beam profile across both high and low repetition rates. To effectively...
Many control algorithms or optimisation procedures profit from a consistent set of data which is available with a high frequency: e.g. machine learning or automated commissioning. Modern distributed control systems allow combining and presenting data based on data models, which are then transported consistently over the network: e.g. EPICS7 introduced these data models as normative types or...
The power supplies used for FOFB correctors at SIRIUS expose only electrical current values, making it necessary to perform conversions to and from beam kick values. To take advantage of the canonical Python implementation of this conversion, a separate IOC was developed using pyEPICS and PCASPy. This technology stack imposed some limitations, making it necessary to limit the update rate, and,...
The Argonne Tandem Linear Accelerating System (ATLAS) facility at Argonne National Laboratory is a National User Facility capable of delivering ion beams from hydrogen to uranium. The existing tune archiving system, which utilizes Corelโs Paradox relational data-base management software, is responsible for retrieving and restoring machine parameters from previously optimized configurations....
To meet the stringent requirements of beam commissioning at the High Energy Photon Source (HEPS), Chinaโs first fourth-generation high-energy synchrotron light source, a new high-level application (HLA) framework named Pyapas was developed entirely in Python. Designed for flexibility and maintainability, Pyapas serves as the foundation for all HLAs at HEPS, supporting tasks such as orbit...
Sardana* and Taurus** are community-driven, open-source SCADA solutions that have been used for over a decade in scientific facilities, including synchrotrons (ALBA, DESY, MAX IV, SOLARIS) and laser laboratories (MBI-Berlin).
Taurus is a Python framework for building both graphical and command-line user interfaces that support multiple control systems or data sources. Sardana, is an...
The High Luminosity-Large Hadron Collider (HL-LHC) project at CERN aims to increase the integrated luminosity of the Large Hadron Collider (LHC). As an important milestone of the HL-LHC project, the scope of the Inner Triplet (IT) String test facility is to represent the various operation modes and the controls environment to study and validate the collective behaviour of the different...
SCADA (Supervisory Control and Data Acquisition) systems traditionally acquire data from PLCs through polling. The Time Stamped Push Protocol (TSPP), on the other hand, enables a PLC to timestamp and push data to the SCADA at its own discretion. The Vacuum Control Systems for CERN accelerators are primarily built on a dedicated Vacuum Framework, which relies on polling and is therefore subject...