Author: Carlson, C.
Paper Title Page
THZBB3 Novel Emittance Measurement Combining Foil Focusing and Pepper-Pot Techniques 961
  • K.A. Schultz, G.T. Ortiz, M.E. Schulze
    LANL, Los Alamos, New Mexico, USA
  • C. Carlson, D. Guerrero
    NSTec, Los Alamos, New Mexico, USA
  Funding: Work supported by the US National Nuclear Security Agency and the US Department of Energy under contract DE-AC52-06NA25396.
In this paper, we describe a direct measurement of foil focusing of an intense, relativistic electron beam com-bined with the pepper-pot technique to perform emit-tance measurements. Foil focusing occurs when a thin, grounded, conducting foil shorts out the radial electric field of a transiting electron beam, causing its self-magnetic field to focus the beam. A 40-ns pulse was extracted from the main pulse of the 16-MeV, 1.65 kA beam from Axis-II of the Dual Axis Radiographic Hy-drodynamic Test Facility to perform the measurements. We show that not accounting for foil focusing signifi-cantly reduces the measured emittance.
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About • paper received ※ 27 August 2019       paper accepted ※ 15 September 2019       issue date ※ 08 October 2019  
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