Hi Frank, I think that in public domain, there is only STIR that is available. Yes it is outdates but still in use and there is no newer packages. I personnaly don't use STIR but I think it is well documented. Good luck, Simon <div>2007/12/11, Frank W. Meisel <<a href="mailto:frank.meisel@unine.ch">frank.meisel@unine.ch</a>>:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hello dear Gate-Users, i am just about to start programming with GATE, so it would be nice if I can get a little little help from you :-) I compiled gate and ran the examples succesfully and have a root output file in the typical gate format. But which Software for reconstructing the images can I use?? I recently heard of STIR , but this seems to be outdated? Is this package still in use? Or are there any newer ones? (In my case, i want to simulate the difference between a reconstruction with time-of-flight measurement info and without.) So thanks for any hints which could help, best regards, Frank _______________________________________________ Gate-users mailing list <a href="mailto:Gate-users@lists.healthgrid.org">Gate-users@lists.healthgrid.org</a> <a href="http://lists.healthgrid.org/mailman/listinfo/gate-users">http://lists.healthgrid.org/mailman/listinfo/gate-users </a> </blockquote></div>