OPERATIONAL PERFORMANCE OF THE SNS LLRF INTERIM SYSTEM
Alessandro Ratti, Marco Monroy, LBNL, Berkeley, CA 94720, USA
Mark Champion, Hengjie Ma, ORNL, Oak Ridge, TN 37830, USA
Poster TPAG018 presented at the
Particle Accelerator Conference 2003,
Portland, Oregon, May 12-15, 2003.
A new approach has been taken to develop and build the Low-Level
RF Control System for the SNS Front End and Linear Accelerators,
as reported in a separate paper in this conference.
An interim version, based on the proven LBNL MEBT design, was
constructed to support short-term
goals and early commissioning of the Front End RFQ and DTL
accelerators, while the final system
is under development.
Additional units of the interim system are in use at JLab and LANL
for concept testing, code development, and commissioning of SNS
SRF cryomodules. The conceptual design of the MEBT system had
already been presented elsewhere,
and this paper will address
operational experiences and performance measurements with the
existing interim system hardware, including commissioning results
at the SNS site for the Front End and DTL Tank 3 together with
operational results from the JLab test stand.
M. Champion et al.,
``The Spallation Neutron Source Accelerator Low Level RF Control System,''
- A. Regan et al.,
``Newly Designed Field Control Module for the SNS,''
L. Doolittle et al.,
``The SNS Front End LLRF System,''
Linac 2002, Gyeongju, Korea, August 2002.
- Bright Star Engineering, Andover, Mass., USA,
- H. Ma,
``SNS LINAC RF Control: Reference System and Phase Measurement,''
SNS LLRF Tech Note 3, May 2002.
May 15, 2003