<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
Hi,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
I'm not sure if this is of any help since you use CT-data, but the I've made the following Matlab mex-file(s) for reading PET simulated ROOT data and it can also extract scatter data:<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
<a href="https://github.com/villekf/OMEGA/blob/master/source/GATE_root_matlab_C.cpp" id="LPlnk532884">https://github.com/villekf/OMEGA/blob/master/source/GATE_root_matlab_C.cpp</a> for the C-api (crashes Matlab unless used with -nojvm)</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
<a href="https://github.com/villekf/OMEGA/blob/master/source/GATE_root_matlab.cpp" id="LPlnk205852">https://github.com/villekf/OMEGA/blob/master/source/GATE_root_matlab.cpp</a> for the C++-api (2019a and up).</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
<br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
Regards,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
Ville-Veikko Wettenhovi<br>
</div>
<div id="appendonsend"></div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Gate-users <gate-users-bounces@lists.opengatecollaboration.org> on behalf of SL H <hsl1196997465@gmail.com><br>
<b>Sent:</b> Tuesday, September 22, 2020 11:48<br>
<b>To:</b> Xinjie Cao <xinjie.cao@stonybrook.edu>; gate-users@lists.opengatecollaboration.org <gate-users@lists.opengatecollaboration.org><br>
<b>Subject:</b> Re: [Gate-users] How to extract scatter fraction from the ROOT output?</font>
<div> </div>
</div>
<div>
<div dir="ltr">Hi, Xinjie.
<div>I have followed your suggestion and converted the ROOT file to a text (it is so large for MATLAB to read) using the code on this page:<a class="x_gmail-reference x_external" href="https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Froot.cern.ch%2FphpBB3%2Fviewtopic.php%3Ff%3D3%26t%3D16590&data=02%7C01%7C%7Cb45d4cb772484c299e2e08d85ed45bb1%7C87879f2e73044bf2baf263e7f83f3c34%7C0%7C1%7C637363613465524116&sdata=Gv6ZODouU9zVzfkcEorF3PK5vkaLlMOJ9B33W4G2%2FpA%3D&reserved=0" originalsrc="http://root.cern.ch/phpBB3/viewtopic.php?f=3&t=16590" shash="y3ovElhV13ogprLwTpKrd1OSuvMTbH8qdGE8Dh9P4QPaCc/Q5JDGkMvFOj4lQuKs6HTLio4MqSZN5DgUNcW0SkkrJSgh/MOjIV5v5dLzTEQbttTWBpbAxf0U3jm7eae8jYMne4S/nuz/1CUo4jDmBa8cPTF+f1SvPPisTQ6N0Tg=" style="color:rgb(109,65,0); text-decoration-line:none; border-bottom:1px solid rgb(109,65,0); font-family:Georgia,serif; font-size:17px">http://root.cern.ch/phpBB3/viewtopic.php?f=3&t=16590</a>.</div>
<div>After that I got something like the attached picture1. I used TBrowser to check my ROOT file and found there are two Singles and two Hits( attached picture2), which one should I convert to text for filtering scatter data? </div>
<div>And in the Gate user doc, I can not find the look up table which you said, there is not much information about the ROOT output, could you please give me some instructions or an example to filter the scatter data? </div>
<div>Thank you!</div>
<div><br>
</div>
<div>
<div><br>
</div>
</div>
</div>
<br>
<div class="x_gmail_quote">
<div dir="ltr" class="x_gmail_attr">Xinjie Cao <<a href="mailto:xinjie.cao@stonybrook.edu">xinjie.cao@stonybrook.edu</a>> 于2020年9月22日周二 上午1:58写道：<br>
</div>
<blockquote class="x_gmail_quote" style="margin:0px 0px 0px 0.8ex; border-left:1px solid rgb(204,204,204); padding-left:1ex">
<div dir="ltr">My suggestion is to convert the ROOT output file into the txt file and filter all scatters you need by MATLAB (with the look up table for ROOT output file format in the GATE instruction file). Then if you still need the ROOT output file you can
convert the filtered txt data into ROOT file reversely. We achieved this before, but I am wondering if anyone else has a better solution, like filtering the scatter in ROOT command line work. Good luck!
<div><br>
</div>
<div>Best,</div>
<div>Xinjie</div>
</div>
<br>
<div class="x_gmail_quote">
<div dir="ltr" class="x_gmail_attr">On Mon, Sep 21, 2020 at 6:35 AM SL H <<a href="mailto:hsl1196997465@gmail.com" target="_blank">hsl1196997465@gmail.com</a>> wrote:<br>
</div>
<blockquote class="x_gmail_quote" style="margin:0px 0px 0px 0.8ex; border-left:1px solid rgb(204,204,204); padding-left:1ex">
<div dir="ltr">Dear gate users. <span style="color:rgb(51,51,51); font-family:Arial,"Microsoft YaHei",微软雅黑,宋体,"Malgun Gothic",Meiryo,sans-serif; font-size:14px; font-variant-numeric:normal; font-variant-east-asian:normal; line-height:26px; text-align:justify; background-color:rgb(247,248,250)">
I am learning to use GATE for CT simulation, I know that primray+scatter=total (.dat projection). But how can I get the Compton, Rayleigh scatter fraction from the ROOT output file?</span></div>
_______________________________________________<br>
Gate-users mailing list<br>
<a href="mailto:Gate-users@lists.opengatecollaboration.org" target="_blank">Gate-users@lists.opengatecollaboration.org</a><br>
<a href="https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.opengatecollaboration.org%2Fmailman%2Flistinfo%2Fgate-users&data=02%7C01%7C%7Cb45d4cb772484c299e2e08d85ed45bb1%7C87879f2e73044bf2baf263e7f83f3c34%7C0%7C1%7C637363613465534108&sdata=HnwZCdo3r4yrflU06BDVauYe4gL%2B42a4APYYvI55haE%3D&reserved=0" originalsrc="http://lists.opengatecollaboration.org/mailman/listinfo/gate-users" shash="EqhRoLbASSvy0G6BECUUSs4/G7VXoObC2nspUd9MLYoXcrndBpEt/b8Ixz80hABQN1alo/D5gPYotVjdPqSFyMd74IWN9TBizhpaBOPNEqUxBhOUpp+UsASxeRUtOLfr16dzc+PMjEOowWHYrv6GyI83YQlb6YCXoPrHLUFvsg4=" rel="noreferrer" target="_blank">http://lists.opengatecollaboration.org/mailman/listinfo/gate-users</a></blockquote>
</div>
</blockquote>
</div>
</div>
</body>
</html>