<div dir="ltr"><div>Hi,</div><div> </div><div>for dose calculation you can enable uncertainty calculation:</div><div>/gate/actor/[Actor Name]/enableUncertaintyDose  true</div><div>see</div><div><a href="http://wiki.opengatecollaboration.org/index.php/Users_Guide_V6.2:Readout_parameters_for_Radiotherapy_applications:_Actors">http://wiki.opengatecollaboration.org/index.php/Users_Guide_V6.2:Readout_parameters_for_Radiotherapy_applications:_Actors</a></div>
<div> </div><div>You can also repeat several time a simulation and calculate the standard deviation.</div><div> </div><div> </div></div><div class="gmail_extra"><br clear="all"><div>Loïc<br></div>
<br><br><div class="gmail_quote">2014-02-25 12:32 GMT+01:00 Hojjat Mahani <span dir="ltr"><<a href="mailto:hojjat.mahani@yahoo.com" target="_blank">hojjat.mahani@yahoo.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div style="font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:10pt"><div><span>Hi all,</span></div><div style="font-family:HelveticaNeue,"Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;font-size:13px;font-style:normal;background-color:transparent">
<br></div><div style="font-family:HelveticaNeue,"Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;font-size:13px;font-style:normal;background-color:transparent">I would like to ask an important question regarding GATE simulation. </div>
<div style="font-family:HelveticaNeue,"Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;font-size:13px;font-style:normal;background-color:transparent">How can one find precision (i.e., uncertainty in the tally mean caused by statistical fluctuations)
 of his/her own GATE Monte Carlo simulation? </div><div style="font-family:HelveticaNeue,"Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;font-size:13px;font-style:normal;background-color:transparent">
<span style="font-size:10pt"><br></span></div><div style="font-family:HelveticaNeue,"Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;font-size:13px;font-style:normal;background-color:transparent">
<span style="font-size:10pt">Since, such a quantity is mandatory in order to interpret the acceptability of the results and evaluate the ability of the variance reduction techniques as well. </span></div><div style="font-family:HelveticaNeue,"Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;font-size:10pt;font-style:normal;background-color:transparent">
<span style="font-size:10pt"><br></span></div><div style="font-family:HelveticaNeue,"Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;font-size:13px;font-style:normal;background-color:transparent">
<span style="font-size:10pt">Thank you in advance,</span></div><div style="font-family:HelveticaNeue,"Helvetica Neue",Helvetica,Arial,"Lucida Grande",sans-serif;font-size:13px;font-style:normal;background-color:transparent">
<span style="font-size:10pt"> </span><br></div><div><font face="arial, helvetica, sans-serif"><b>Hojjat Mahani, </b></font></div><div><font face="arial, helvetica, sans-serif">PhD Candidate of Medical Radiation Engineering,</font></div>
<div><font face="arial, helvetica, sans-serif">Nuclear Science and Technology Research Institute.</font></div><div><font></font> </div><div><font>Senior Researcher at Medical Imaging Systems Lab,</font></div><div><font>Research
 Center for Molecular and Cellular Imaging.<var></var></font></div><div><font face="arial, helvetica, sans-serif"> </font></div><div><font face="arial, helvetica, sans-serif">Mobile:  <a href="tel:%2B98%20%280%29%209132296856" target="_blank" value="+989132296856">+98 (0) 9132296856</a> & <a href="tel:%2B98%20%280%29%209356284400" target="_blank" value="+989356284400">+98 (0) 9356284400</a> </font></div>
<div><font face="arial, helvetica, sans-serif">Emails: </font><a href="mailto:hojjat.mahani@yahoo" rel="nofollow" target="_blank"><font face="arial, helvetica, sans-serif">hojjat.mahani@yahoo</font></a><font face="arial, helvetica, sans-serif"> & <u><a href="mailto:hojjat.mahani@gmail.com" target="_blank">hojjat.mahani@gmail.com</a></u><br>
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