<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7652.24">
<TITLE>Gate 3.1.2 vs Gate 4.0</TITLE>
</HEAD>
<BODY>
<!-- Converted from text/rtf format -->
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Hi Seb and gate users,</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">I rad simulation jobs with the same macro with Gate 3.1.2 and Gate 4.0 separately. Following figures show the result</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">s</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> of sinogramS and</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> sinogramTheta.</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">I ran a voxelized phantom and source to generate these plots.</FONT></SPAN><SPAN LANG="en-us"> </SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">In my previous email, I asked whether the difference I saw in those two parameters might come from usi</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">ng</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">the</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">fictitious tracking algorithm. I</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">think</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> there are basic differences between two versions as shown in the figures. </FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri"></FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">The peak at</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">0 of the plot of sinogramS for Gate3.1.2 becomes less distinct for</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">Gate 4.0</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">. Also</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">,</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> the dip</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"></FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">around</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> 180 degrees for sinogramTheta becomes bigger for Gate 4.0. This is the same tendency I saw with the fictitious tracking option.</FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri"></FONT></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri"> Did anyone see the difference between two versions? Also, are these differences expected or not important?</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Thanks</FONT></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> and happy new year!</FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Hyejoo</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri"></FONT></SPAN><SPAN LANG="en-us"> </SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> </FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT FACE="Arial" SIZE=2 COLOR="#000000">
<IMG SRC="No%20AttachName" alt="Picture (Device Independent Bitmap)"></FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri"> </FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT FACE="Arial" SIZE=2 COLOR="#000000">
<IMG SRC="No%20AttachName-1" alt="Picture (Device Independent Bitmap)"></FONT></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN></P>
<P><pre wrap>
=====================================================================
Please note that this e-mail and any files transmitted with it may be
privileged, confidential, and protected from disclosure under
applicable law. If the reader of this message is not the intended
recipient, or an employee or agent responsible for delivering this
message to the intended recipient, you are hereby notified that any
reading, dissemination, distribution, copying, or other use of this
communication or any of its attachments is strictly prohibited. If
you have received this communication in error, please notify the
sender immediately by replying to this message and deleting this
message, any attachments, and all copies and backups from your
computer.
</pre></P></BODY>
</HTML>