Downloads

Version 9 programs have been compiled with the follow compilator and operating system. 

• Linux:  Ubuntu Version LTS 24.4 - compiled with Intel ifx compiler and  Intel MPI library
• MacOS:  Tahoe Version 26 - two versions are available compiled with gfortran (Apple Silicon) and Intel ifort. Both versions use OpenMPI libraries.
• Windows:  Version 11: compiled with Intel ifx compiler and  Intel MPI library

If problem should occur, it is not possible to obtain executables for older OS version. Minor changes or bug correction are not labeled with a new version number but the date for the build and update with be displayed here. You can find the date for your current version of the package at the bottom of the information in the res file. This could be an update of the program, tutorials or manual, Before reporting any problem make sure you have the latest package.

Current packages have been built on July, 9th, 2026

Installation Windows

Create, for example, a directory c:\simind and unpack smc_win_64_v80.zip, where v80 is the version number into the folder. Keep the folder information while unzipping and be sure that a directory c:\simind\smc_dir with files of for example extension *.cr4 have been created. Go into the Control Panel of Windows and click on System, Advanced, Environmental Variables.  In the input field User Variables window add the following environmental system variables by filling in proper fields. Variable SMC_DIR should be set to value C:\simind\smc_dir\ Add the folder C:\simind to the environmental variable PATH in the “User Variables” and place it first in the sequence of defined paths. This because Windows also has a also command line program with the name “change”. Exit and restart the command window otherwise the changes with not be used.

To use the new text-based change program, add the following key to the Windows registry by open a cmd terminal and give the following command. You only need to make this once.

REG ADD HKEY_CURRENT_USER\Console /v VirtualTerminalLevel /t REG_DWORD /d 1

Installation Linux/MacOS

Create a directory, for example, $HOME/simind
Download the distribution and extract the file folder into the $HOME/simind directory by unpacking using the following commands, where v80 is the version number!  
           gunzip smc_linux_intel_64_v80.tar.gz
           tar -xvf smc_linux_intel_64_v80.tar
Environmental variables: If you use csh or tcsh shell then add to the .cshrc file the following lines. This is only needed first time you installing the code!
            setenv SMC_DIR $HOME/simind/smc_dir/
            setenv PATH $HOME/simind:$PATH
Execute the command  source .cshrc. to make the changes effective in your terminal window.  If you use bash shell then add in your .bash_profile file.
           PATH=$HOME/simind:$PATH
           SMC_DIR=$HOME/simind/smc_dir/
           export PATH
           export SMC_DIR
Execute the command source.bash_profile to make the changes effective in your terminal window. 

In the zip file, two compiled SIMIND version are now available; simind for ARM (Apple Silicon) processors and simind_intel for intel process.

The Manual

The manual for the latest version can be found here as a pdf file. 

The CASToR Binaries

Here is a link to the distribution for the CASToR software with pre-build executables for Linux, MacOS and Windows (32 and 64-bit). It is, however, strongly recommended that users of this program register themseft to the CASToR community list at the www.castor-project.org in order to receive information about future updates and to get other important information. On the page, there is also information about to configure and compile the builds to particular preferences since it is not the intention that this website should be regarded as a mirror-site. To get started and use the smc2castor program for reconstruction of simind-genereated SPECT projections then following installation/preparation is needed.

Download the CASToR from the web-page.
Extract the whole CASToR file structure to a convenient place on your hard drive.
Define in the startupfiles the environmental variable CASTOR_CONFIG to the absolute path of the config folder within the CASToR folder structure.
Add the relevant CASToR folder to you PATH environmental variable.

Disclaimer

By downloading, installing, or using the SIMIND software, you acknowledge and agree that you do so entirely at your own risk. The developer of  SIMIND assume no responsibility or liability for any errors, omissions, inaccuracies, or consequences arising from the use of the software or the interpretation of its results.

Users are solely responsible for evaluating, validating, and interpreting all outputs generated by the software and for determining their suitability for any intended purpose. Any decisions or actions taken based on the software's results are the sole responsibility of the user.

SIMIND is intended exclusively for research, educational, and training purposes. It is not designed, validated, or approved for clinical diagnosis, patient management, treatment planning, or any other medical or healthcare application. The software must not be used as a substitute for professional medical judgment or in any context where incorrect results could lead to harm to patients or individuals.

By downloading and using SIMIND, you accept these terms and acknowledge the limitations of the software.