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Parametric exploration of intense positron beam–plasma interactions

Published online by Cambridge University Press:  25 March 2004

B.E. BLUE
Affiliation:
Electrical Engineering Department, University of California, Los Angeles, California
C.E. CLAYTON
Affiliation:
Electrical Engineering Department, University of California, Los Angeles, California
C.L. O'CONNELL
Affiliation:
Stanford Linear Accelerator Center, Stanford University, Stanford, California
F.-J. DECKER
Affiliation:
Stanford Linear Accelerator Center, Stanford University, Stanford, California
M.J. HOGAN
Affiliation:
Stanford Linear Accelerator Center, Stanford University, Stanford, California
C. HUANG
Affiliation:
Electrical Engineering Department, University of California, Los Angeles, California
R. IVERSON
Affiliation:
Stanford Linear Accelerator Center, Stanford University, Stanford, California
C. JOSHI
Affiliation:
Electrical Engineering Department, University of California, Los Angeles, California
T.C. KATSOULEAS
Affiliation:
Electrical Engineering Department, University of Southern California, Los Angeles, California
K.A. MARSH
Affiliation:
Electrical Engineering Department, University of California, Los Angeles, California
W.B. MORI
Affiliation:
Electrical Engineering Department, University of California, Los Angeles, California
D. WALZ
Affiliation:
Stanford Linear Accelerator Center, Stanford University, Stanford, California

Abstract

A systematic investigation of the longitudinal fields excited in a plasma by a short, dense beam of positrons is carried out using two-dimensional, cylindrical geometry, particle-in-cell code simulations. In particular, we examine the behavior of the accelerating and decelerating fields of the wakefield as a function of beam charge, radius, length, and plasma density. The parameters are chosen to be consistent with those employed in current and future experiments designed to elucidate the physics of positron beam–plasma interactions.

Type
Research Article
Copyright
© 2003 Cambridge University Press

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