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Stewart, C. L.

Paper Title Page
TUPPH034 Toward Energy-Spread Measurements of Diamond Field-Emitter Arrays 317
 
  • J. D. Jarvis, H. L. Andrews, C. A. Brau, B. K. Choi, J. L. Davidson, W. P. Kang, S. Raina, C. L. Stewart, Y. M. Wong
    Vanderbilt University, Nashville, Tennessee
  
  A high-resolution retardation energy analyzer is being developed to examine the energy spread of electron beams from diamond field-emitter arrays. Analyzer design was guided by previous work at UMER*, and simulations performed in SIMION. The anaylzer incorporates a cylindrical focusing electrode which, when properly tuned, gives millivolt resolution for multi-kilovolt beams. The analyzer is integrated into a low-energy cathode teststand, which allows arbitrary adjustment of the anode-cathode spacing and planarity during operation.

* Y. Cui, Y. Zou, A. Valfells, M. Reiser, M. Walter, I. Haber, R. A. Kishek, S. Bernal, and P. G. O’Shea, Rev. Sci. Instrum. 75, 8 (2004).