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SNS Cryogenic Test Facility Kinney Vacuum Pump Commissioning and Operation at 2 K...

by Brian D Degraff, Matthew P Howell, Sang-ho Kim, Thomas S Neustadt
Publication Type
Conference Paper
Journal Name
IOP Conference Series: Materials Science and Engineering
Publication Date
Page Number
Conference Name
Cryogenic Engineering Conference 2017
Conference Location
Madison, Wisconsin, United States of America
Conference Sponsor
University of Wisconsin
Conference Date

The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) has built and commissioned an independent Cryogenic Test Facility (CTF) in support of testing in the Radio-frequency Test Facility (RFTF). Superconducting Radio-frequency Cavity (SRF) testing was initially conducted with the CTF cold box at 4.5 K. A Kinney vacuum pump skid consisting of a roots blower with a liquid ring backing pump was recently added to the CTF system to provide testing capabilities at 2 K. System design, pump refurbishment and installation of the Kinney pump will be presented. During the commissioning and initial testing period with the Kinney pump, several barriers to achieve reliable operation were experienced. Details of these lessons learned and improvements to skid operations will be presented. Pump capacity data will also be presented.