<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Dear Mohamad,<div class=""><br class=""></div><div class="">everything is explained in the documentation:</div><div class=""><a href="https://opengate.readthedocs.io/en/latest/tools_to_interact_with_the_simulation_actors.html#dose-by-regions" class="">https://opengate.readthedocs.io/en/latest/tools_to_interact_with_the_simulation_actors.html#dose-by-regions</a></div><div class=""><br class=""></div><div class="">The DoseByRegions actor will sum the edep and absorbed dose per region fo your geometry. </div><div class="">Of course edep (MeV) and absorbed dose (Gy) will increase as you increase the number of primaries.</div><div class=""><br class=""></div><div class="">The regions correspond to every pixel values in the input file you give to the DoseByRegions actor. </div><div class="">For example if you give as input a voxel phantom with 140 segmented organs (140 different integers values) the DoseByRegions.txt output will contain 140 rows with the edep and absorbed dose in those organs.</div><div class=""><br class=""></div><div class="">Best regards,</div><div class=""> Maxime Chauvin</div><div class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 12 Apr 2020, at 11:03, Eng. M Pharaon <<a href="mailto:pharaon_m@hotmail.com" class="">pharaon_m@hotmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;" class=""><div style="margin: 0px; font-size: 12pt; font-family: Calibri, Helvetica, sans-serif; background-color: rgb(255, 255, 255);" class="">Hello Gate Users;</div><div style="margin: 0px; font-size: 12pt; font-family: Calibri, Helvetica, sans-serif; background-color: rgb(255, 255, 255);" class="">could any one explain to me how dose the doseByRegions actor work, and what is the relation between numbers of primaries and edep results because the edep change a lot when we change the number of primaries, when we use voxel phantoms,</div><div style="margin: 0px; font-size: 12pt; font-family: Calibri, Helvetica, sans-serif; background-color: rgb(255, 255, 255);" class="">thanks alot,</div><div style="margin: 0px; font-size: 15px; font-family: "Segoe UI", "Segoe UI Web (West European)", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", sans-serif; color: rgb(32, 31, 30); background-color: rgb(255, 255, 255);" class=""> <span class=""> </span><font size="2" style="font-size: 10pt;" class=""> <font color="#666666" class=""><strong class="">Mohamad Pharaon</strong></font><br class=""><font color="#666666" class=""><strong class=""> Nuclear Engineer</strong></font></font></div><br class=""></div><div style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;" class=""><br class=""></div></div><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">_______________________________________________</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">Gate-users mailing list</span><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><a href="mailto:Gate-users@lists.opengatecollaboration.org" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">Gate-users@lists.opengatecollaboration.org</a><br style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><a href="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</a></div></blockquote></div><br class=""></div></body></html>