<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=UTF-8"> <META NAME="GENERATOR" CONTENT="GtkHTML/4.2.2"> </HEAD> <BODY> Hi, I am not sure whether I understand your problem. LET is the energy deposited per unit length. So in my opinion this should be measurable using the actors. The dose actor for instance records dose or deposited energy. Just scale the voxel size down. If you need it more precise, use the track actor. Cheers, Hermann On Mon, 2014-02-03 at 12:59 +0000, Edward Smith wrote: <BLOCKQUOTE TYPE=CITE> Hi, </BLOCKQUOTE> <BLOCKQUOTE TYPE=CITE> </BLOCKQUOTE> <BLOCKQUOTE TYPE=CITE> I asked a question last week about how to get LET from a proton therapy simulation. It was suggested I use the EM properties, track and delta kinetic energy actors. I've looked into these and I don't think they can be used to get LET, although I may be wrong. Do you know of anyone using GATE to get LET? Thanks for the help so far. </BLOCKQUOTE> <BLOCKQUOTE TYPE=CITE> </BLOCKQUOTE> <BLOCKQUOTE TYPE=CITE> Regards, </BLOCKQUOTE> <BLOCKQUOTE TYPE=CITE> </BLOCKQUOTE> <BLOCKQUOTE TYPE=CITE> Edward </BLOCKQUOTE> <BLOCKQUOTE TYPE=CITE> <PRE> _______________________________________________ Gate-users mailing list <A HREF="mailto:Gate-users@lists.opengatecollaboration.org">Gate-users@lists.opengatecollaboration.org</A> <A HREF="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</A> </PRE> </BLOCKQUOTE> <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%"> <TR> <TD> <PRE> -- ------------- DI Hermann Fuchs Christian Doppler Laboratory for Medical Radiation Research for Radiation Oncology Department of Radiation Oncology Medical University Vienna Währinger Gürtel 18-20 A-1090 Wien Tel. + 43 / 1 / 40 400 7271 Mail. <A HREF="mailto:hermann.fuchs@meduniwien.ac.at">hermann.fuchs@meduniwien.ac.at</A> </PRE> </TD> </TR> </TABLE> </BODY> </HTML>