The GXSM is the Gnome X Scanning Microscopy project, it is a bit more than just a piece of software (the GXSM itself), there is full hardware support for DSP cards including open source DSP software and a growing set of SPM related electronics. And it is not limited to SPM at all, it provides generic multidimensional image and data movie processing.
This is the official web site of the GXSM. It contains information about downloading, installing, using, and enhancing it. We try to provide as much information about the GXSM community and related projects as possible. Hopefully you will find what you need here, and if not feel free to ask for online support. In spirit of The GIMP: Grab a properly chilled beverage and enjoy.
The GXSM software is a powerful graphical interface for any kind of 2D and up to 4D (timed and multilayered 2D mode) data acquisition methods, but especially designed for SPM and SPA-LEED, which are used in surface science. It includes methods for 2D data (of various types: byte, short, long, double) visualization and manipulation. It can be used for STM, AFM, SNOM, SPA-LEED, but is by far not limited to those! Especially in standalone mode it can perform many SPM typical image manipulations and analysis tasks. Latest additions enables full support of handling and on-the-fly viewing image sequences and arbitrary profiling in 4 dimensions:
The GXSM is a complete open source solution for
- all SPM needs: STM, AFM, SNOM, SARLS... and SPA-LEED
- complete SPM hardware: offering leading Digital Signal Processing (DSP) technology (realtime multitask statemachine) for feedback, scanning, vector probing and multi channel data acquisition
- GXSM core independent Plug-in hardware interface "HwI" allows to add support for any hardware without touching the GXSM core
- 2D..4D data acquisition and visualisation: Profile, Image and 3D rendered views
- On-the-fly, i.e. while scanning, Vector-Probe (any kind of spectroscopy or manipulation), automatic gridded probing
- Event management: User triggered events like bias change, probe, etc. are attached by coordinate and time to the scan data
- Image/2&3D or 4D data processing, timed and layered data handling
- Plug-in interface for data processing, machine control and GXSM core independent hardware support and any kind of user extensions
- Im-/Export plug-ins for many comercial SPM software (and some other) data formats
- Python script language interface
An example: The STM Image at the left shows an atomically
resolved surface of a with about 2 Monolayers of Germanium covered
Silicon 100 crystal surface. Brighter means the "atoms" are at a higher
layer. The structure made of overlapping "balls" looking like a mesh
represents the local density of states -- or just density of the
electrons seen by the STM tip at the surface. The maxima can be
interpreted as the positions of the atoms of the top layer...
GXSM is powerful, it is easy to extend via plug-ins, it is unlimited in data size and it is a free and open source software hosted by SourceForge! The recent version (Gxsm-2.0 CVS branch) is based on the Linux (i386 and ppc) Gtk+/Gnome-2 development environment. But it is a multi-platform system and is running on Darwin/Mac OS X + Fink (minimal requirements are gtk2/gnome2.6) systems as well.
About GXSM
The GXSM program and project is originated at the Institut für Festkörperphysik (Solid State Physics) University of Hannover, Germany and is currently maintained by then GXSM developers team, click here to view institutes using GXSM.
GXSM is licensed under the terms of the GNU General Public License (GPL).
We appreciate any help and sponsoring this non profit project.
Thanks, the GXSM Team.
Please cite this article if you are using GXSM
A paper on GXSM can be found in Review of Scientific Instruments. Please cite the paper in all publications that contain data acquired or images treated with GXSM:
P. Zahl, M. Bierkandt, S. Schröder, and A. Klust, Rev. Sci. Instr. 74 (2003) 1222.
And please also let the GXSM community know about your publications/presentations,
including any GXSM acquired or treatet data:
Click here to view or add paper references
