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SIMPSON

A General Simulation Program for Solid-State NMR

Current stable version: 2.0.0
Released: February 1, 2009

Latest development version: 2.0.1pre4
Released: April 22, 2009

SIMPSON is a general purpose solid-state NMR simulation software. It features multi-pulse 1D and multidimensional solid-state NMR simulations on large spin systems with input files implemented using a simple scripting language (Tcl). The helper application SIMMOL helps you setting up the large spin systems based on polypeptide structures. SIMMOL is distributed with SIMPSON.

This release now contains functionality to optimize pulse sequences using optimal control.
   
SIMPSON is developed by
Mads Bak
Jimmy Tønners Rasmussen
Niels Chr. Nielsen
Zdenek Tosner
Thomas Vosegaard


License

SIMPSON is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License. For the continued efforts in the development of SIMPSON it is imperative that we can justify our efforts. Therefore, please cite the following articles when using SIMPSON and SIMMOL:

Download

SIMPSON binaries/source code (current stable release 2.0.0)
SIMPSON source code (development 2.0.1preXX)
SIMPSON OC examples
SIMPSON examples

SIMPSON/SIMMOL Discussion Forum

As SIMPSON user you may wish to visit the SIMPSON/SIMMOL Discussion Forum where you may get help or help others with SIMPSON/SIMMOL related things.

News

New features of SIMPSON 2.0.0 include

  • Optimal Control functionality
  • Several bugs fixed
  • New routines to handle shaped pulses
  • RF inhomogeneity

New features of SIMPSON 1.1.2 include

  • Several bugs fixed
  • New features for processing added
  • New features for three-angle crystallite files added (Courtesy of Andreas Brinkmann).
New features of SIMPSON 1.1.1 include
  • Several bugs fixed
  • New command 'fcontour' to plot 2D datasets
  • Average Hamiltonian returned by the 'matrix get' command.

New features of SIMPSON 1.1.0 include
  • Combination of SIMPSON with the MINUIT optimization tools from CERN: New SIMPSON commands.
  • Import/export from/to NMRpipe for one- and multiple-dimensional data processing and visualization. For information on how to obtain NMRpipe, please visit the homepage of the Bax group.
  • A few bugs relating to the acq and phase commands, as well as a bug in simulations of off-MAS spectra for quadrupolar nuclei are fixed. See the ChangeLog file.
 
  Last update
Apr 20, 2009
by webmaster