Author: Buckley, R.K.
Paper Title Page
TUPO008 Vertical Test Facility for Superconducting RF Cavities at Daresbury Laboratory 365
 
  • R.K. Buckley, R. Bate, P. Goudket, A.R. Goulden, P.A. McIntosh, J.F. Orrett, S.M. Pattalwar, A.E. Wheelhouse
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
 
  The Vertical Test Facility at Daresbury Laboratory has been recently relocated to enable it to fulfill its potential of performing high power characterization tests of Superconducting RF Cavities in the 1.3 to 3GHz range. The 250 litre, 3 Metre Dewar is capable of operation from 1.6K to 4K and has recently been used to test the first Superconducting cavity produced in the UK. This paper outlines the setup, processes and results of these tests.  
 
TUPO038 Superconducting RF Cavity Development With UK Industry 464
 
  • A.E. Wheelhouse, R. Bate, R.K. Buckley, P. Goudket, A.R. Goulden, P.A. McIntosh, J.F. Orrett
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
  • J.R. Everard, N. Shakespeare
    Shakespeare Engineering, South Woodham Ferrers, Essex, United Kingdom
  • P. Kneisel, S. Manning, R.A. Rimmer
    JLAB, Newport News, Virginia, USA
 
  As part of a STFC Industrial Programme Support Scheme (PIPSS) grant Daresbury Laboratory and Shakespeare Engineering Ltd have fabricated, processed and tested a single cell 1.3 GHz superconducting RF cavity, in collaboration with Jefferson Laboratory. The overall aim of the project through a knowledge exchange programme was to develop the capability of UK industry to fabricate and process a single cell niobium superconducting cavity, as part of a long term strategy to enable UK industry to address the large potential market for superconducting RF structures. As a means of measuring the performance of the fabrication and processing an objective of the programme of work was to achieve an accelerating gradient of greater than 15 MV/m at an unloaded quality factor of 1.0 x 1010 or better. Three cavities were fabricated by Shakespeare Engineering, and electron beam welded at Jefferson Laboratory in the USA. Processing and testing of the cavities was then performed both at Jefferson Laboratory and at Daresbury Laboratory. The fabrication and process methods are discussed in this paper along with the results obtained from the testing performed in the vertical test facilities.  
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