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Gillespie, N. A.

Paper Title Page
WEPMS031 Development of a Temperature Mapping System for 1.3-GHz 9-Cell SRF Cavities 2406
 
  • A. Canabal, P. Chacon, N. A. Gillespie, M. A. Madrid, T. Tajima
    LANL, Los Alamos, New Mexico
  • J. D. Bowyer
    NMSU, Las Cruces, New Mexico
  
  The mapping of outer wall temperature during the vertical test of a superconducting radio-frequency (SRF) cavity has been one of the most useful tools to detect bad spots of the cavity. However, few systems except a rotating-arm type one have been developed so far for 9-cell cavities. Since it will be an essential tool to identify the failure of the cavities, we started to develop a fix-type temperature mapping system that will enable us to map the temperature of 9-cell cavities in a much shorter time than rotating-arm type. This paper describes the design, status of the development and hopefully some results of the mapping of actual cavities.  
FRPMS054 PSR Electron Cloud Detector and Suppressor Mechanical Design and Fabrication 4117
 
  • J. F. O'Hara, M. J. Borden, A. A. Browman, N. A. Gillespie, D. Martinez, K. G. McKeown, F. R. Olivas
    LANL, Los Alamos, New Mexico
  • J. E. Ledford, R. J. Macek
    TechSource, Santa Fe, New Mexico
  
  Funding: Work supported by DOE SBIR Grant No. DE-FG02-04ER84105 and CRADA No. LA05C10535 between TechSource, Inc. and the Los Alamos National Laboratory.

In order to better understand the two stream e-p instability issue in the LANSCE Proton Storage Ring, a new diagnostic instrument has been developed to measure the electron cloud formation and trapping in a quadrupole magnet at the LANSCE, PSR. The device called the Electron Cloud Detector (ECD) was fabricated and has successfully been installed in the PSR. Along with the Electron Cloud Detector, an additional device was developed to manipulate electrons ejected from the quadrupole and allow additional information to be obtained from ECD measurements. This paper will discuss the mechanical design and fabrication issues encountered during the course of developing both devices.