Speaker
Rocky Armstrong
(ORNL)
Description
The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) operates the Cryogenic Moderator System (CMS) which provides supercritical hydrogen cooling at 20K to three neutron moderators. A helium refrigerator provides 8 kW of cooling capacity to three parallel hydrogen circuits. Several projects have been completed to improve operational reliability CMS. The status of helium compressor oil removal system, helium oil processor, helium purity monitoring, hydrogen circulator bearing investigation and operational procedure improvement will be presented. Future plans for sustained reliable operation at design capacity will also be presented.
Authors
Brian DeGraff
(ORNL)
Matthew Howell
(ORNL)
Co-authors
John Denison
(ORNL)
Mr
Luke Pinion
(ORNL)
Rocky Armstrong
(ORNL)
