Accelerator Column Models for Low-Current Beams

This paper describes three analytic approaches used to model electrostatic accelerator columns in beam-transport codes for low-current beams and compares the results of each approach with the results obtained by numerically calculating the electric field based on charge distribution on equipotential...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on nuclear science Vol. 32; no. 5; pp. 2585 - 2587
Main Authors Rusthoi, D. P., Allison, Paul, Crandall, K. R.
Format Journal Article Conference Proceeding
LanguageEnglish
Published United States IEEE 01.10.1985
Subjects
430200 - Particle Accelerators- Beam Dynamics, Field Calculations, & Ion Optics
ACCELERATORS
Apertures
BEAM DYNAMICS
BEAM TRANSPORT
Electrodes
ELECTROSTATIC ACCELERATORS
Electrostatic analysis
Equations
Laboratories
Lenses
Life estimation
LINEAR ACCELERATORS
MATHEMATICAL MODELS
PARTICLE ACCELERATORS
Particle beam injection
Particle beams
TRAJECTORIES
Online AccessGet full text

Cover

More Information
Summary:This paper describes three analytic approaches used to model electrostatic accelerator columns in beam-transport codes for low-current beams and compares the results of each approach with the results obtained by numerically calculating the electric field based on charge distribution on equipotential surfaces. The three analytic approaches described are (1) a cubic energy-gain approximation, (2) a cubic longitudinal electric-field approximation, and (3) the aperture equation. The first two approaches calculate impulse approximations at the apertures, whereas the third is an integration of particle trajectories through the column field. The conditions under which the solutions tend to break down are discussed.
Bibliography:LA-UR-85-1515; CONF-850504-24
W-7405-ENG-36
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.1985.4333988