The 6.1 version of OSEM is available as a free download on our website. The program is included in Education Tools. The following versions: 6.1 and 1.4 were the most frequently downloaded ones by the program users. The actual developer of the program is OSEM Technology. This download was scanned by our built-in antivirus and was rated as virus free.
From the developer:
OSEM is designed to reconstruct projection/sinogram sets in Interfile format. It is a command line driven program compilable on many hardware platforms, running a variety of operating systems. Executables for Sun and WindowsNT systems are available. It is also known to work on DEC and SGI machines.
You may want to check out more software, such as Maxima and Minima, IUCLID5 or Genotyper, which might be similar to OSEM.