Design of the SNS cavity support structure

Author

Hogan, J. ; Ciovati, G. ; Machie, D. ; Pitts, J. ; Preble, J. ; Schneider, W.J. ; Smith, K. ; Turlington, L. ; Matsumoto, K. ; Mitchell, R.

Author_Institution

Thomas Jefferson Nat. Accelerator Facility, Newport News, VA, USA

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1158

Abstract

The Spallation Neutron Source (SNS) facility utilizes a superconducting linac to provide a 1 GeV H^- beam with an average power of 2 MW. A critical part of the accelerator structure is the superconducting radio frequency (SRF) niobium. cavities, which are housed in a titanium liquid helium pressure vessel. These vessels maintain the operating temperature of 2.1 Kelvin while facilitating the mechanical support, tuning and alignment of the SRF cavities. The design, fabrication and operation of the superconducting support structure will be presented with an emphasis on the design criteria as they pertain to the operation of the cavity. These criteria will be discussed with respect to the titanium liquid helium pressure vessels, higher order mode couplers, fundamental power coupler, field probe and tuning requirements

Keywords

accelerator cavities; ion accelerators; linear accelerators; neutron sources; pressure vessels; superconducting cavity resonators; waveguide couplers; 2.1 K; SNS; Spallation Neutron Source; field probe; fundamental power coupler; higher order mode couplers; pressure vessels; superconducting RF cavities; superconducting linac; support structure; tuning; Couplers; Helium; Linear particle accelerator; Neutrons; Niobium; Particle beams; Radio frequency; Superconducting devices; Temperature; Titanium;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.986612

Filename

986612