<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"></style> </head> <body dir="ltr"> <div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif;" dir="ltr"> Dears Gate Users, I am looking for simulating secondary gamma produced within a water phantom during proton beam irradiation. I used filter actor to obtain the dose distribution from gamma but it was not as expected. Any help will be highly appreciated. Thanks in advance, Kind regards, Awad <div id="Signature"> Sent from <a href="http://aka.ms/weboutlook" id="LPNoLP">Outlook</a> </div> </div> </body> </html>