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

Cryogenic Engineering Conference 2017

材料科学;物理学

Degraff, B.^1 ; Howell, M.^1 ; Kim, S.^1 ; Neustadt, T.^1

1Research Accelerator Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge

TN

37831, United States^1

关键词: Cryogenic test facility;    Oak ridge national laboratories;    Pump capacity;    Radio frequency tests;    Reliable operation;    Roots blower;    Spallation neutron sources;    Superconducting radio frequency;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/278/1/012161/pdf
DOI  :  10.1088/1757-899X/278/1/012161

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

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.