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Boundary Element Analysis of Beam Dynamics in Streak Camera Considering Space Charge Effects
Hideki KAWAGUCHI Kazunori MAEDA Shohei KODATE Yoshihiro ITO
IEICE TRANSACTIONS on Electronics
Publication Date: 2013/01/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and Its Application)
Category: Numerical Techniques
streak camera, space charge effects, boundary element method, relativistic equation of motion, self-consistent analysis, finite difference method, Particle-in-cell (PIC),
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Streak cameras are now widely used for measurements of ultra short phenomena, such as those in semi conductor luminescence and plasma gaseous discharge. To further improve the temporal resolution and carry out higher-dimensional measurements, it is necessary to understand the electron beam behavior in detail. Thus, numerical simulations play an important role in the analysis of the streak camera. The authors have been working on the development of a numerical simulation code that uses the finite difference method (FDM) for electric field analysis, the Runge-Kutta (R-K) method for charged particle motion determination, and the particle-in-cell (PIC) method for charge density calculation. However, the use of the PIC method leads to inaccuracy in the charge density calculation in cases of high-density electron beams. To improve the accuracy of the conventional analysis of the streak camera, we perform the boundary element (BE) analysis of the streak camera.