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Modernizing the SNS Control System

by Karen S White, Kay-uwe Kasemir, Kelly L Mahoney, Klemen Vodopivec, Derrick C Williams
Publication Type
Conference Paper
Book Title
Proceedings of the 18th International Conference on Accelerator and Large Experimental. Physics Control Systems
Publication Date
Page Numbers
21 to 25
Conference Name
International Conference on Accelerator and Large Experimental Physics Control Systems 2021 (ICALEPCS)
Conference Location
Shanghai, China
Conference Sponsor
Conference Date

The Spallation Neutron Source at Oak Ridge National Laboratory has been operating since 2006. An upgrade to double the machine power from 1.4 MW to 2.8 MW is currently underway and a project to add a second target station is in the preliminary design phase. While each project will add the controls needed for their specific scope, the existing control system hardware, software, and infrastructure require upgrades to maintain high availability and ensure the system will meet facility requirements into the future. While some systems have received new hardware due to obsolescence, much of the system is original apart from some maintenance and technology refresh. Software will also become obsolete and must be upgraded for sustainability. Further, requirements for system capacity can be expected to increase as more subsystems upgrade to smarter devices capable of higher data rates. This paper covers planned improvements to the integrated control system with a focus on reliability, sustainability, and future capability.