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Zwaska, R.M.

Paper Title Page
TUPB23 Measurement of Electron Cloud Density With Microwaves in the Fermilab Main Injector 216
 
  • J.L. Crisp, N. Eddy, I. Kourbanis, K. Seiya, R.M. Zwaska
    Fermilab, Batavia
  • S. De Santis
    LBNL, Berkeley, California
  
 

Electron cloud density in the Fermilab Main Injector was measured by observing microwave transmission along the vacuum tube. Presence of the electron cloud reduces the velocity of the microwave signal. Both frequency and time domain methods reveal relative cloud density and time evolution. The effect of beam time structure is clearly evident. The accelerator magnetic field effects the distribution of electrons making it difficult to estimate density.