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<p>Hello Philip,</p>
<p>The estimation of scatter and random corrections is not
implemented in the conversion code, only their respective number
is computed from the root meta-data. Currently there is only the
possibility to ignore these events in the resulting datafile using
the <i>-t</i> option). <br>
</p>
<p>This implementation would not require much work though (recover
the number of scatter/randoms events for each couple of crystal
IDs before the conversion, and compute the correct correction
factor for each event during the conversion).</p>
<p>Kind regards,</p>
<p>Thibaut<br>
</p>
<br>
<div class="moz-cite-prefix">On 21/05/2018 13:35, Philip Kalaitzidis
wrote:<br>
</div>
<blockquote
cite="mid:CAENkqWgk+7fmSgz9SPP2aUZvO8jE6aOur=Hx9p1=a3QVsFoGXQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>Dear Castor-users, <br>
</div>
<div><br>
</div>
<div>I am sorry if this question is trivial but I cannot seem to
get a grip of it. <br>
</div>
<div><br>
</div>
<div>When performing a ROOT to Castor conversion with
GATERootToCastor the number of scatters and randoms are
estimated. Are scatter/random corrections performed on the
data during the conversion of the ROOT file and thus already
present in the datafile to be reconstructed? <br>
</div>
<div><br>
</div>
<div>If not, how are these correction terms (supposedly in
scatter rate or random rate) added to the final reconstruction
if the conversion has been done using GATERootToCastor? <br>
</div>
<div><br>
</div>
<div>Best regards,</div>
<div><br>
</div>
<div>Philip<br>
</div>
</div>
<br>
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</blockquote>
<br>
<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)
Bâtiment 1
CHRU Morvan - 2, Av. Foch
29609 Brest CEDEX - FRANCE
Tel: 06.75.12.24.90</pre>
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