A primary concern for high current ion accelerators is contaminant electrons. These electrons can interfere with the beam ions, causing emittance growth and beam loss. Numerical simulation is a main tool for understanding the interaction of the ion beam with the contaminant electrons, but these simulations then require accurate models of electron generation. These models include ion-induced electron emission from ions hitting the beam pipe walls or diagnostics. However, major codes for modeling ion beam transport are written in different programming languages and used on different computing platforms. For electron generation models to be maximally useful, researchers should be able to use them easily from many languages and platforms. A model of ion-induced electrons including the electron energy distribution is presented here, including a discussion of how to use the Babel software tool to make these models available in multiple languages and how to use the GNU Autotools to make them available on multiple platforms. An application to simulation of the end region of the High Current Experiment is shown. These simulations show formation of a virtual cathode with a potential energy well of amplitude , approximately six times the most probable energy of the ion-induced electrons. Oscillations of the virtual cathode could lead to possible longitudinal and transverse modulation of the density of the electrons moving out of the virtual cathode.
Skip Nav Destination
Article navigation
May 2006
Research Article|
May 08 2006
Modeling ion-induced electrons in the High Current Experimenta)
P. H. Stoltz;
P. H. Stoltz
c)
Tech-X Corporation
, 5621 Arapahoe Ave., Suite A, Boulder, Colorado 80303
Search for other works by this author on:
J. P. Verboncoeur;
J. P. Verboncoeur
EECS Department,
University of California
, Berkeley, California 94720
Search for other works by this author on:
R. H. Cohen;
R. H. Cohen
Lawrence Livermore National Laboratory
, Livermore, California 94550
Search for other works by this author on:
A. W. Molvik;
A. W. Molvik
Lawrence Livermore National Laboratory
, Livermore, California 94550
Search for other works by this author on:
J.-L. Vay;
J.-L. Vay
Lawrence Berkeley National Laboratory
, Berkeley, California 94720
Search for other works by this author on:
S. A. Veitzer
S. A. Veitzer
Tech-X Corporation
, 5621 Arapahoe Ave., Suite A, Boulder, Colorado 80303
Search for other works by this author on:
Phys. Plasmas 13, 056702 (2006)
Article history
Received:
October 29 2005
Accepted:
January 09 2006
Citation
P. H. Stoltz, J. P. Verboncoeur, R. H. Cohen, A. W. Molvik, J.-L. Vay, S. A. Veitzer; Modeling ion-induced electrons in the High Current Experiment. Phys. Plasmas 1 May 2006; 13 (5): 056702. https://doi.org/10.1063/1.2179027
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Pay-Per-View Access
$40.00
Citing articles via
Progress toward fusion energy breakeven and gain as measured against the Lawson criterion
Samuel E. Wurzel, Scott C. Hsu
The crucial role of diagnostics in achieving ignition on the National Ignition Facility (NIF)
J. D. Kilkenny, A. Pak, et al.
Development of steady-state fusion reactor by Helical Fusion
J. Miyazawa, T. Goto