Limiting current of axisymmetric relativistic charged-particle beam propagating in strong axial magnetic field in coaxial drift tube

In the strong axial magnetic field approximation, we calculate the space-charge limited (SCL) current of axisymmetric relativistic charged-particle beam in a coaxial drift tube of finite length. Results are compared to analytical estimates and numerical modeling of SCL current in the infinitely long...

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Bibliographic Details
Published in:Physics of plasmas 2012-06, Vol.19 (6)
Main Authors: Yatsenko, T., Ilyenko, K., Sotnikov, G. V.
Format: Article
Language:English
Subjects:
ANALYTICAL SOLUTION
APPROXIMATIONS
AXIAL SYMMETRY
CHARGED PARTICLES
COMPUTERIZED SIMULATION
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIELECTRIC MATERIALS
DRIFT TUBES
ELECTRIC POTENTIAL
ION BEAMS
MAGNETIC FIELDS
PARTICLE ACCELERATORS
RELATIVISTIC RANGE
SPACE CHARGE
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Summary:In the strong axial magnetic field approximation, we calculate the space-charge limited (SCL) current of axisymmetric relativistic charged-particle beam in a coaxial drift tube of finite length. Results are compared to analytical estimates and numerical modeling of SCL current in the infinitely long drift tube. For the infinitely long drift tube, which inner conductor is biased and the outer conductor is lined with a finite-width dielectric insert, analytic approximations for the SCL current in the bias voltage are developed.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4729321