S
IMION
is a software package whose main purpose is to
solve for electric fields and the trajectories of charged par-
ticles through those fields when given some configuration
of electrodes with voltages and particle initial conditions.
Quasistatic RF (e.g. quadrupole) and magnetic fields are also sup-
ported. In this, SIMION provides extensive supporting functionality
in geometry definition, user programming, data recording, visuali-
zation, and workbenches. It is a general and time -tested platform
for simulating lens, mass spec, and other types of particle optics
systems.
Applications
SIMION is suitable for a wide variety of systems involving 2D
and 3D, static low-frequency (MHz) RF fields: from ion flight
through simple electrostatic and magnetic lenses to particle guns
to highly complex instruments, including time-of-flight, ion traps,
quadrupoles, ICR cells, and other MS, ion source and detector
optics.
Audience
No program can be all things to all people. SIMION is aimed at
a wide audience, with extensive use in both academia and industry,
including by most of the major mass spec companies. SIMION is
positioned as an affordable package that nevertheless provides
solid implementations of many core capabilities, even a choice
among multiple approaches (as when defining geometries). The
program uses direct methods such as finite-difference that are
straightforward to apply but are also optimized and extended, mak-
ing SIMION suitable for a wide variety of real-world systems. The
methods are interactive to promote understanding, allowing you to
adjust parameters during the simulation and immediately visualize
the resultant fields and trajectories. The software is programmable,
allowing users to extend and automate the capabilities in novel
ways. It is also substantially documented. It runs on Windows and
Linux.
History
SIMION has a long history with the first PC versions starting in
the early 1980's and developed for the next two decades up to
Version 7.0 under David Dahl at Idaho National Laboratory (US
Department of Energy). SIS has purchased the development rights
to SIMION and is continuing to improve SIMION with our first
release of SIMION 8.0.
SIMION
TM
Version 8.0
A88
Scientific Instrument Services, Inc.
TM
Phone: 908-788-5550
www.sisweb.com/catalog/08/A88
The Industry Software Standard for Electron and Ion Optics Modeling
Screenshots above show model, field, and trajectory views of an RF quadrupole example in SIMION 8.
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