Publication Type
Conference Paper
Book Title
International Conference on Accelerator and Large Experimental Physics Control Systems (17th)
Publication Date
Page Numbers
1304 to 1306
Conference Name
International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2019)
Conference Location
Brooklyn, NY, New York, United States of America
Conference Sponsor
American Physical Society, The Physical Society of Japan, European Physical Society
Conference Date
-
Abstract
The Controls Group at the Spallation Neutron Source (SNS) is designing a programmable signal processor based credited safety control that calculates pulsed beam energy based on beam kinetic energy and charge. The SNS Pulsed Energy Limit System (SPELS) must reli-ably shut off the beam if the average power exceeds 2.145 MW averaged over 60 seconds. This paper will cover the architecture and design choices needed to develop the system under the auspices of a programma-ble radiation-safety credit control. The authors will also introduce the concept of a graded failure approach that allows the credited system to continue operation in the presence of some faults.
