Jump to content
SIMION Discussion Group

SIS acquires rights to SIMION development; ASMS meeting

Recommended Posts

To SIMION Users,


I have some long awaited news on SIMION. As you may know, there has

not been a major new release of SIMION in some years following the

retirement of lead SIMION developer David Dahl at what is now Idaho

National Labs (INL). Still, SIMION remains widely used and its user

base continues to grow at a steady rate. Obviously, as in any piece

of software, customers desire changes and improvements. As a

distributor of SIMION for INL, our company Scientific Instrument

Services, Inc. (SIS) has heard feedback from many users, comments of

where SIMION gets things right (the simplicity/directness,

interactiveness to aid intuition, affordability, and it's a

ability/flexibility to solve a wide variety of real problems) and

where it falls short (e.g. the user interface and programming

interface are due for an overhaul and some nagging quirks like the

file directory limit need fixed). It's obvious that SIMION needs an

active maintainer. SIS has pursued this issue for some time and with

some difficulty, and in the meantime we had started up simion.com and

developed the toolkit accessory package. The good news is that the

SIS has completed the required contract, and its rights to maintain

the SIMION source code become effective July 1, 2005. My main job

over the year (and possibly much longer) will be to manage this

project and bring about SIMION 8.0 (and likely 7.x or development/beta

releases along the way, which will require testers).


In the meantime, some planning is being done, and we appreciate all

feedback as to what you would like to see improved in SIMION, whether

in general or on very specific points. After all, you are the users

of the software, and it is your requirements that must be met.

(Vacuum conditions may be desirable for ion optics, but for software

development it is not.) You may post comments on the discussion board

or call/e-mail me. I will also be at the ASMS meeting in San Antonio

Texas next week, and we can discuss anything there as well. SIS will

be at booth #61, and I will plan to stop by at some of your posters.

Also, as in last year, you may stop by and ask some question on using

SIMION (I will bring a laptop with SIMION and even CPO and other such



Over the coming month, new tools will be added to the SIMION web site

to better support the development process. For example, this SIMION

discussion group will be moved to simion.com to better manage multiple

levels of discussion (e.g. Announcements, User Support, and

Development). The new forum is at




(Some changes may be made in the forum in the next few days as things

are finalized and existing messages are imported, but you are welcome

to try it out.) Additional details will follow.


For those attending ASMS, below is the list of all posters that are

related to SIMION (or at least have SIMION mentioned in the abstract).


==== ASMS Posters on SIMION ====


Session Code Title


MOFam 11:35 Implications of miniaturising Linear Ion Trap arrays

for portable detectors (includes CPO)

MP16 258 Performance and Modeling of a Small TOF Mass

Spectrometer used in Aerosol Sampling

MP16 261 Countering the turn-around time effect in orthogonal TOF MS

MP16 266 Advantages of a Three-Field Source Over a Two-

Field Source in a Multipurpose Tandem Time of

Flight Mass Spectrometer

MP16 268 The Development of Novel Resistive Glass Technology for

Tailoring Electric Fields in Ion Mobility and Mass

Spectrometer Applications.

MP16 270 Single Particle Analysis of MALDI using Bio-Aerosol

Mass Spectrometry

MP16 271 Electrospray Ionization Time-of-Flight Mass

Spectrometry (ESI-TOFMS) with microfabricated

Beam Modulation Devices

ThOEam 11:15 The Ion Conveyor: A New Ion Optical Device for

Improved Focusing and Sensitivity

ThP12 173 Developing Electrospray Charge Detection Mass

Spectrometry as a Nanoparticle Injector for X-ray

Free Electron Laser Diffraction Imaging

ThP12 174 An Advanced Laser Desorption Ionization Ion Source

with Controlled Superposition of Electric and

Pneumatic Fields


ThP12 177 Surface Induced Dissociation (SID) in a Quadrupole

Time of Flight Mass Spectrometer

ThP12 180 Surface-Surface (Ping-Pong)

Neutralization-Reionization Mass Spectrometry

ThP13 199 Axial Field Characteristics in an RF-only Linear

Ion Trap with End Lenses

ThP13 200 Strategies to reduce the effects of field

imperfections in quadrupole ion traps

ThP13 214 Miniaturization of mass spectrometers based on

sub millimeter cylindrical ion traps

TODpm 03:40 Kinetic Investigation of Peptide Fragmentation

in a MALDI TOF SID TOF Mass Spectrometer

TODpm 04:20 Linear Ion Trap with Axial Ejection as a Source

for a TOF MS

TP11 199 Efficient Ion Transmission Through a Quadrupole

Mass Filter and into a Linear Octopole Trap

TP11 201 Physical Characterization and Optimization of

Electron Capture Dissociation in Fourier

Transform Ion Cyclotron Resonance Mass Spectrometry

TP11 212 Octopole Ion Guide Transmission Efficiency in a

High Magnetic Field for FT-ICR MS


TP11 215 SIMION Modeling of Methods to Control Time-of-Flight

Dispersion of Externally Generated Ions in High


TP12 223 Electron Capture Dissociation in RF Quadrupole

devices: A New Method to Trap Ions and

Low-Energy Electrons



WOFam 10:15 Fourier Transform Ion Cyclotron Resonance Mass

Spectrometry: Overview of Recent Technique and

Instrumentation Developments

WP08 122 Ion Motion Control in the Orbitrap Mass Analyzer

WP08 126 Fabrication of Cylindrical Ion Traps Using

Selectively Plated Non-Conducting Materials

WP08 127 Ion Funnels for the Masses: Experiments and

Simulations with a Simplified Ion Funnel

WP08 128 Toward Single Cell Detection-Development of A

Novel Bioaerosol Fourier Transform Mass Spectrometer

WP08 136 Beam Dynamics in a High Resolution Multi-Pass

Time of Flight Mass Separator

WP08 138 Transmission of Ions Through Laminated Conductance

Pathways from Atmospheric Pressure


WP19 342 3D Particle-In-Cell Code for Simulations of Ion

Motion in the Presence of Magnetic Field


For full abstracts on these posters, go to the ASMS web site at




Click "Search", in "Full Text Word Search" enter "simion", click

"Begin Search", and click "Print View".



==== News Flash ====


INL and SIS Agree to Develop SIMION Ion Optics Software


The U.S. Department of Energy's Idaho National Laboratory and

Scientific Instrument Services Inc. (SIS) of Ringoes, NJ have joined

in a new license agreement to develop and maintain the software code

for the SIMION suite of ion optics modeling software. The agreement

will allow SIS to enhance, update and maintain the software, to

satisfy the needs of the user community, benefit the industrial

partner and the government.


SIMION 3D, originally developed by INL employee David Dahl, is an

award-winning Windows PC based program, widely used by manufacturers

and designers of mass spectrometers, electron microscopes, electron

multipliers and other scientific instruments to study the optics of

charged particles through electric and magnetic fields in two and

three dimensions. SIMION is designed to provide direct and highly

interactive methods, balancing ease-of-use, speed, accuracy, and

affordability in order to simulate a variety of real-world ion optics

problems. SIMION can model complex problems using a workbench

strategy that can hold up to 200 2-D and/or 3-D electrostatic or

magnetic field arrays, each of up to 50,000,000 points, which the user

can visualize in 3D and cut away to inspect ion trajectories and

potential energy surfaces to gain intuition and collect quantitative data.


SIMION is so pervasive, and so influential that in 1998, the American

Society for Mass Spectrometry (ASMS) recognized that "the application

of SIMION has been invaluable to the design of mass spectrometers (the

kinds of machines that SIMION simulates) for the last decade."


SIS has distributed SIMION since 1996 and has more recently developed

accessory tools to expand the capabilities of SIMION to include the

importation of CAD files directly into SIMION, a new compiler and

other tools requested by customers. Similar features along with an

updated user interface are planned for inclusion in the next major

release of SIMION. SIS has also established a SIMION web site

(www.simion.com) to provide customers with information and support on

SIMION. SIS warmly welcomes any comments or suggestions from the

SIMION community on the future direction of the SIMION software.


Established in 1978, Scientific Instrument Services specializes in

supplies and services for mass spectrometers and related scientific

and medical equipment. The company distributes its products via a

catalog and through its web site (www.sisweb.com). SIS also designs

and manufactures filaments, probes and other instrument accessories

for OEM's in the scientific and medical market. With more than 30

employees, SIS's staff includes sales, technicians, machinists,

engineers, programmers and product development/support specialists.


The INL is a science-based, applied engineering national laboratory

dedicated to supporting the U.S. Department of Energy's missions in

environment, energy, science and national security. The INL is

operated for the DOE by Battelle Energy Alliance, LLC.




I look for forward a long and productive collaboration with the SIMION


David Manura

Scientific Instrument Services, Inc.

908-788-5550 x831, dm.oohay[-at-]sisweb.com, www.sisweb.com /


(<< Supplies and Services for Mass Spectrometers, Gas Chromatographs

and Liquid Chromatographs)

Link to comment
Share on other sites

  • Create New...