CERN Accelerating science

Article
Title	Dynamic Visualization of SNS Diagnostics Summary Report and System Status
Author(s)	Blokland, Willem ; Liyu, Andrei ; Long, Cary D ; Murphy, Darryl J ; Purcell, John D ; Sundaram, Madhan
Affiliation	(Innovative Design, Knoxville, Tennessee) ; (ORNL/SNS, Oak Ridge, Tennessee) ; (RAS/INR, Moscow) ; (University of Tennessee, Knoxville, Tennessee)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1395
Subject category	Accelerators and Storage Rings
Abstract	The Spallation Neutron Source (SNS) accelerator systems will deliver a 1.0 GeV, 1.4 MW proton beam to a liquid mercury target for neutron scattering research. The accelerator complex consists of a 1 GeV linear accelerator, an accumulator ring and associated transport lines. The SNS diagnostics platform is PC-based running Embedded Windows XP and LabVIEW. The diagnostics instruments communicate with the control system using the Channel Access (CA) protocol of the Experimental Physics and Industrial Control System (EPICS). This paper describes the Diagnostics Group's approach to collecting data from the instruments, processing it, and presenting live in a summarized way over the web. Effectively, adding a supervisory level to the diagnostics instruments. One application of this data mining is the "Diagnostics Status Page" that summarizes the insert-able devices, transport efficiencies, and the mode of the accelerator in a compact webpage. The displays on the webpage change automatically to show the latest and/or most interesting instruments in use.