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<p>Hi,</p>
<p>This option has been removed from version 3 as the scatter rate
computation (directly calculated from the root metadata) is not
consistent with TOF data as it doesn't take into account the TOF
bin size, thus the implementation in version 2 was incorrect.<br>
</p>
<p>Besides, this option does not really provide a scatter correction
estimation, but the actual rates directly computed from the
Monte-Carlo simulated data. Currently there is only the
possibility to ignore scatter/random events in the resulting
datafile using the <i>-t</i> option, otherwise the scatter
correction factors estimation must be preformed and implemented by
the user. <br>
</p>
<p>You can have more details regarding scatter correction with TOF
in the following discussion thread:
<a class="moz-txt-link-freetext" href="https://lists.castor-project.org/pipermail/castor-users/2019-November/000281.html">https://lists.castor-project.org/pipermail/castor-users/2019-November/000281.html</a>
<br>
</p>
<p>Kind regards,<br>
Thibaut<br>
</p>
<div class="moz-cite-prefix">On 06/07/2021 09:48, 김연경 wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CA+f9Ky_T468mdV--Zu_JoYEHJgyA-hDN-bG5TqJPVE9TEKX04A@mail.gmail.com">
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<div dir="ltr"><font style="background-color:rgb(255,255,255)"
face="arial, sans-serif" color="#000000">Dear CASToR users
and developers,<br clear="all">
</font>
<div><font style="background-color:rgb(255,255,255)"
face="arial, sans-serif" color="#000000"><br>
</font></div>
<div>
<div><font style="background-color:rgb(255,255,255)"
face="arial, sans-serif" color="#000000">The scatter
correction is not applied when converting GATE
simulation data (GATERootTocastor) using the TOF
option in version 3. But, it is possible in version 2.</font></div>
<div><font style="background-color:rgb(255,255,255)"
face="arial, sans-serif" color="#000000">Q1. I want to
apply a scatter correction when converting the GATE
data (list mode) using the TOF option. If so, is it
correct to use version 2?</font></div>
<div><font style="background-color:rgb(255,255,255)"
face="arial, sans-serif" color="#000000"><br>
</font></div>
<div><font style="background-color:rgb(255,255,255)"
face="arial, sans-serif" color="#000000">Q2. Confirmed
that the bugs in version 2 were fixed in version 3.
Can I still use version 2?</font></div>
<div><font style="background-color:rgb(255,255,255)"
face="arial, sans-serif" color="#000000">I wonder if
there is no difference (version2 vs version 3) in TOF
reconstruction using list-mode data.</font></div>
</div>
<div><font style="background-color:rgb(255,255,255)"
face="arial, sans-serif" color="#000000"><br>
</font></div>
<div><font style="background-color:rgb(255,255,255)"
face="arial, sans-serif" color="#000000">Thanking you in
advance for your responses,<br>
</font></div>
<div><font style="background-color:rgb(255,255,255)"
face="arial, sans-serif" color="#000000">Sincerely,</font></div>
<div><br>
</div>
-- <br>
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<p><font face="tahoma, sans-serif" color="#666666">YEONKYEONG
KIM</font></p>
<p><span
style="color:rgb(102,102,102);font-family:tahoma,sans-serif">Email: </span><a
href="mailto:dusrud026@gmail.com"
target="_blank"
style="font-family:tahoma,sans-serif"
moz-do-not-send="true">dusrud026@gmail.com</a><br>
</p>
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</blockquote>
<pre class="moz-signature" cols="72">--
Thibaut MERLIN -- PhD
Docteur en Imagerie Médicale au Laboratoire de Traitement de l'Information Medicale (LaTIM - INSERM UMR 1101)
Institut Brestois de recherche en Bio-Santé (IBRBS)
12 Avenue Foch, 29200 Brest, FRANCE
Tel: 06.75.12.24.90</pre>
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