CERN Accelerating science

Article
Title	Operational Experience with the Spallation Neutron Source High Power Protection Module
Author(s)	Crofford, Mark ; Champion, Mark ; Kasemir, Kay-Uwe ; Ma, Hengjie ; Piller, Maurice
Affiliation	(ORNL/SNS, Oak Ridge, Tennessee)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3411
Subject category	Accelerators and Storage Rings
Abstract	The Spallation Neutron Source (SNS) High Power Protection Module provides protection for the High Power RF Klystron and Distribution System and interfaces with the Low-Level Radio-Frequency (LLRF) Field Control Module (FCM). The fault detection logic is implemented in a single FPGA allowing modifications and upgrades to the logic as we gain operational experience with the LINAC RF systems. This paper describes the integration and upgrade issues we have encountered during the initial operations of the SNS systems.