Conveners
Poster Session
- Doug Preddy (TRIUMF)
- Paul Sampson (BNL)
Radiofrequency cavities are critical for accelerating beams at CERN, and their efficiency is in part due to the inner surface quality, which may be effected by various mechanical procedures such as welding. A detailed inspection is required to ensure the quality of manufacturing, but also for post mortem analysis. Ideally, this inspection should be non-destructive, and a new robotic system has...
We present initial results from a proof-of-concept “smart alarm” for the CEBAF injector. Because of the injector's large number of parameters and possible fault scenarios, it is highly desirable to have an autonomous alarm system that can quickly identify and diagnose unusual machine states. Our approach leverages a trained neural network to not only identify an anomalous machine state, but...
Please see attached word document.
Although many systems at BNL's C-AD are well instrumented, some legacy and specialist systems are not. Air Conditioning units, for example do not report their status at all. Catching anomalous or off-normal signals can help prevent extended downtime. Efforts are beginning to show potential with the leveraging of Machine Learning techniques to assist prompt analysis.
Availability of the GSI Accelerator Complex is tracked with OLOG (Operation LOGbook) tool, developed internally. In 2020, we founded an Availability Work Group (AWG). Its activity drastically improved the quality of the failure data, handled in OLOG. Additionally, the internal acceptance for the failure statistics has grown.
Complex parallel operation of the facility is another challenge on...
North Area Consolidation Project aims for a performance and resource-oriented approach to improve the reliability and availability of North Experimental Area facilities at CERN-SPS. The North Area provides various beams for fixed-target experiments and test beams for the R&D programs of the CERN/LHC experiments as well as for present and future projects at CERN or other laboratories.
The...
There are close to 3M pieces of equipment registered in the equipment database for CERN’s accelerators and their infrastructures that cover a very large range of technologies. The challenge of the technical groups in charge of the equipment is not only to maintain the reliability of the equipment, but to reach an ever higher performance, to increase efficiency of its operation, to increase its...
In the last number of years, maintenance of the Canadian Light Source (CLS) vacuum system has shifted from a reactive approach to a preventative maintenance approach. The catalyst of this shift is the aging facility and infrastructure. A comprehensive review and analysis of vacuum system components has given clear direction on preventative maintenance activities. Components that pose the...
In the last years, the Experimental Areas (EA) Group at CERN has enhanced its configuration management strategy to the experimental areas (North and East Area, AD and ELENA Complex, HiRadMat Experiment) to have a clear and coherent picture of any beamline at a given point in time. As an essential tool for quality management, configuration management facilitates an increased physics time for...
As accelerators become more complex over their lifespan it becomes increasing important to document and plan for the removal of obsolete equipment as well as the installation of new components. The Electron Ion Collider at Brookhaven National Laboratory is no exception where coordinating the removal and installation must take place in the years prior to beam commissioning. This presentation...
The Lujan Center at the Los Alamos Neutron Science Center utilizes multiple tungsten spallation targets to generate intense bursts of pulsed neutrons for academic, national security, and industrial research. These targets are cooled by a closed loop, deionized water system. As part of the safety basis of the facility, safety rated flow switches are implemented to ensure sufficient cooling is...
Reliable particle accelerators require reliable control systems to operate and protect the different subsystems of the accelerator. The software reliability of these critical control systems is crucial to guarantee a safe and optimal operation.
Software reliability is a very challenging aspect of the overall reliability analysis. Formal methods and formal verification are well-proven...
PETRAIII is a 3rd generation sychrontron light-source starting operation in 2009. The annual availability usually reaches a level over 97%. For this level of availability a high reliable pre accelerator is mandatory. The pre accelerator complex for PIII includes a Linac (LINACII), an accumulator ring (PIA) und a booster synchrotron (DESYII). With the constant-current (“top-up”) operation mode...
With over 2 decades of operations at the RHIC, the generally improving trends in availability and reliability do include a number of running periods with anomalies; it is difficult to analyze coarse statistics in fine detail. Early trends can be attributed to improvements in general areas such as system upgrades or operational efficiency; later years involve ever greater concern for aging...
TRIUMF’s accelerator facilities are expanding, with the new radioactive or rare isotope beam facility, the Advanced Rare Isotope Laboratory (ARIEL), set to come online in 2026. The 520 MeV Cyclotron has been operational for 45 years and will produce one of the driver beams for ARIEL. Several of the cyclotron’s support and subsystems are (near) original and have reached the end of life. These...
The SNS superconducting linac consists of 81 superconducting RF (SRF) cavities placed in 23 cryomodules, accelerating the H- beam from 186 MeV to 1 GeV. Its reliable operation plays an important role in delivering a 1.4 MW beam power on the target. A high availability of 99% has been routinely achieved in the SNS SRF systems. With its current accelerator upgrade to a beam power capable of 2.8...
This poster will be describing the LINAC Tank 4 upgrade as well as the history of the original Tank, through to the end commissioning of the new RF Tank.
The poster will briefly explain the 30-year history of the original Linac RF Tank 4, including its origin, and the reasons for the need to replace Tank 4. Furthermore, the poster will contain details of the upgrades and changes made in the...
Particle accelerators are arguably the most complex scientific instruments ever built. Given the enormous amount of data generated by these facilities, and the increasing demands on system performance, we recognize the need to leverage advances in machine learning (ML). In the last few years there have been several ML projects at Jefferson Lab with a common focus to optimize the operation of...
"The Machine Protection Risk Management Lifecycle at the European Spallation Source ERIC will be presented.
Reliability and availability requirements are taken into consideration before and during the design of the Machine Protection Systems at ESS. This is done by systematically identifying, assessing and mitigating damage risks to equipment.
The machine protection risk management lifecycle...
The Spallation Neutron Source (SNS) is the highest power pulsed proton linac in the world routinely delivering 1.44 MW of beam power. For high-power accelerators, like the SNS, the main operational areas of focus are minimizing beam losses and reducing trip frequency. Since beginning high-power operation SNS has been optimizing beam losses and recording beam trip statistics of varied...
Accelerator complexes rely on multiple sensors to be able to reach desired operational conditions, including safety. For example, Beam Loss Monitor sensors are used for both machine safety, and to help operators steer the beams. These critical devices are installed periodically along the beam lines, and as an example, over 3500 of these sensors are installed in CERN's Large Hadron Collider. To...
The Canadian Light Source (CLS) is a 2.9 GeV third-generation synchrotron light source providing photons to 22 beamlines. In the last 18 years of operation there has been ongoing efforts to not only maintain but improve the reliability of the CLS. Over the past few years a more comprehensive strategy to rationalize our preventive maintenance through risk analysis and budget constraint has been...
H. Terry, C. Peters, R. Saethre, R. Taylor, Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
The Spallation Neutron Source (SNS) Enterprise Asset Management (EAM) system has been in production operation since 2006. From the beginning, the purpose of EAM was to have a tool that would track the work that was happening, keep an inventory of assets, and help...
Programmable Logic Controllers (PLC) are one of the most popular control devices used in the process industry and therefore we can find many of them in the industrial facilities of particle accelerators (e.g. access control systems, cryogenics plants, cooling and ventilation systems, etc.).
A bug in a PLC program can have catastrophic consequences in terms of personnel safety, machine...
Particle accelerators, used in foundational research and cancer treatment, are complex machinery comprising many different components. In this work, the ion source CAPRICE ECRIS is examined with 48Ca operation. The most common problem with 48Ca at the ECR ion source is the instability of the created plasma inside the source, which leads to increased material consumption and lower quality of...
The Electron Ion Collider (EIC) will be built at the Brookhaven National Laboratory Site in Upton New York USA. It will occupy much of the tunnel and support building locations presently in use for the Relativistic Heavy Ion Collider (RHIC). Reliability considerations play a key role in planning for the site-wide modifications and upgrades necessary to support the EIC. This presentation will...
The Relativistic Heavy Ion Collider at Brookhaven National Laboratory in Upton New York, USA normally runs during the winter and spring seasons, when the weather on Long Island is cool and power is steady, readily available and cost effective. Due to recent projects, upgrades and scheduling issues, it will be necessary to run during the harsh summer months in 2023 and possibly in 2024. In this...
The multiple pulse analysis of BNL's AGS extraction septum allows for not only more reliable performance, but also insight into the overall health of the device. Most voltage readbacks, either in their raw state or recorded through oscilloscopes, are unable to be used in a predictive manner as they require filtering, comparison, and complex analysis. This is particularly important for devices...
During operation of the accelerators at DESY, technical failures of individual subsystems, components or operational issues are repeatedly observed in addition of the failures of more complex technical systems.
Further improvement of the existing high availability must therefore be achieved by analyzing all types of failures and their causes, and also through a structured recording of the...
An accelerator complex relies on many key systems of which the power converter complex at CERN is a large component. Modern systems rely on software and firmware which is periodically updated. Accelerator reliability requires good management of this deployment and the pre deployment detection of regression.
A system which takes modern software engineering techniques such as continuous...
System/subsystem failures interrupt availability and operations. Consequences can be costly and may be safety critical. Patterns of failures are typically described by the well-known bathtub curve: first a period of decreasing failures (usually for new equipment), then a period of random failures followed by increasing failures due to wear. Traditionally, maintenance is carried out to reduce...
Accelerator complexes rely on the seamless operations of many hundreds of highly customised devices working together in a harsh environment. Intelligent robotic systems are becoming essential for inspection, maintenance, and repair tasks – both for the validation of systems before installation as well as during operations. Using robots can increase the safety and machine availability, while...
Temperature control and monitoring is a critical part of daily operations at large facilities, and is currently an urgent topic at NSLS-II. NSLS-II storage ring magnet cooling-water systems have developed blockages that reduce cooling, increase temperatures and endanger magnets, and so monitoring and preventative maintenance is critical. Machine learning algorithms provide a promising approach...
With the high availability requirements at ESS of 95% availability during annual operational periods, a key aspect to achieving this target will be through following strict maintenance and configuration management procedures. As the facility is still at the early phase of commissioning, these procedures are also still under development but the key elements which are implemented or under...
The SOLEIL synchrotron is the French third generation synchrotron light source (2.75 Gev, 354 m of circumference, 4 nm.rad natural emittance). In operation since 2007, it provides photon beams simultaneously to a total 29 beamlines. The electron beam intensity can reach up to 500 mA depending on the filling pattern (all 5 of them are available, all in Top-Up injection) with sub micrometer...
At the Canadian Light Source (CLS), the Accelerator Operations and Development (AOD) department makes extensive use of a wiki as a form of documentation for crossover, work instructions, and other resources. AOD began using a wiki in 2015 and over time it has become an integral part of everyday operations. I will provide an overview of how AOD has implemented the wiki, including what kinds of...
One of the difficulties that users are reporting frequently when implementing equipment and activity management is the correct choice of equipment structuring and organisation. It is the terms items/parts, functional positions/slots and assets etc. that often confuse the users. This presentation will demonstrate that we are in fact applying the systems engineering concepts of these equipment...
