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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=PT>Dear Gaters, <o:p></o:p></span></p><p class=MsoNormal><span lang=PT><o:p> </o:p></span></p><p class=MsoNormal>I am trying to simulate the Voxel S values (VSV) for a Tc99m source. <o:p></o:p></p><p class=MsoNormal>I tried using the ion source but the central VSV is too high compared to a reference. <o:p></o:p></p><p class=MsoNormal>I tried using only the 140.5 keV photon emission but the central VSV is too low…<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Do you have any suggestions to simulate a Tc99m source for dosimetry applications?<o:p></o:p></p><p class=MsoNormal>I know there are some questions on the list about this, but I can’t find an answer that solves the problem.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thank you in advance. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Maria Inês<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>