<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office"><head><!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false">Dear Antoine and Ben,</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">A few years back, I was wondering about the same question. I estimated the optimal value by simulating different setDepth values based on the scanner config I was using. My simulation simulated a Discovery MI scanner geometry, and for that scanner, I found that setDepth value of 2 is optimal. Results are here: <a href="https://aapm.onlinelibrary.wiley.com/doi/10.1002/mp.15422" rel="nofollow" target="_blank" class="enhancr_card_2369991201">Monte Carlo evaluation of hypothetical long axial field‐of‐view PET scanner using GE Discovery MI PET front‐end architecture</a></div><div><br></div><div id="ydpa1d41519enhancr_card_2369991201" class="ydpa1d41519yahoo-link-enhancr-card ydpa1d41519ymail-preserve-class ydpa1d41519ymail-preserve-style" style="max-width:400px;font-family:YahooSans, "Helvetica Neue", "Segoe UI", Helvetica, Arial, sans-serif" data-url="https://aapm.onlinelibrary.wiley.com/doi/10.1002/mp.15422" data-type="YENHANCER" data-size="MEDIUM" contenteditable="false"><a href="https://aapm.onlinelibrary.wiley.com/doi/10.1002/mp.15422" style="text-decoration:none !important;color:#000 !important" class="ydpa1d41519yahoo-enhancr-cardlink" rel="nofollow" target="_blank"><table border="0" class="ydpa1d41519card-wrapper ydpa1d41519yahoo-ignore-table" cellpadding="0" cellspacing="0" style="max-width:400px"><tbody><tr><td width="400"><table border="0" class="ydpa1d41519card ydpa1d41519yahoo-ignore-table" cellpadding="0" cellspacing="0" width="100%" style="max-width:400px;border-width:1px;border-style:solid;border-color:rgb(224, 228, 233);border-radius:2px"><tbody><tr><td class="ydpa1d41519card-primary-image-cell" background="https://s.yimg.com/lo/api/res/1.2/3JbLCbm2PE3IP4TfUxZTzg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://aapm.onlinelibrary.wiley.com/cms/asset/7cd997a0-4128-4d83-af78-1c9b8d6b5975/mp.v49.2.cover.jpg?trick=1662141533381.cf.jpg" bgcolor="#000000" valign="top" height="175" style="background-color: rgb(0, 0, 0); background-size: cover; position: relative; border-radius: 2px 2px 0px 0px; min-height: 175px;"><!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:396px;height:175px;position:absolute;top:0;left:0;"><v:fill type="frame" color="#000000" src="https://s.yimg.com/lo/api/res/1.2/3JbLCbm2PE3IP4TfUxZTzg--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://aapm.onlinelibrary.wiley.com/cms/asset/7cd997a0-4128-4d83-af78-1c9b8d6b5975/mp.v49.2.cover.jpg?trick=1662141533381.cf.jpg"/></v:rect><![endif]--><table border="0" class="ydpa1d41519card-overlay-container-table ydpa1d41519yahoo-ignore-table" cellpadding="0" cellspacing="0" style="width:100%"><tbody><tr><td class="ydpa1d41519card-overlay-cell" background="https://s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/enhancr_gradient-400x175.png" bgcolor="transparent" valign="top" style="background-color: transparent; border-radius: 2px 2px 0px 0px; min-height: 175px;"><!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:396px;height:175px;position:absolute;top:-18px;left:0;"><v:fill type="pattern" color="#000000" src="https://s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/enhancr_gradient-400x175.png"/><v:textbox inset="0,0,20px,0"><![endif]--><table border="0" class="ydpa1d41519yahoo-ignore-table" height="175" style="width: 100%; min-height: 175px;"><tbody><tr><td class="ydpa1d41519card-richInfo2" style="text-align:left;padding:15px 0 0 15px;vertical-align:top"></td><td class="ydpa1d41519card-actions" style="text-align:right;padding:15px 15px 0 0;vertical-align:top"><div class="ydpa1d41519card-share-container"></div></td></tr></tbody></table><!--[if gte mso 9]></v:textbox></v:rect><![endif]--></td></tr></tbody></table></td></tr><tr><td><table border="0" align="center" class="ydpa1d41519card-info ydpa1d41519yahoo-ignore-table" cellpadding="0" cellspacing="0" style="background:#fff;position:relative;z-index:2;width:100%;max-width:400px;border-radius:0 0 2px 2px;border-top:1px solid rgb(224, 228, 233)"><tbody><tr><td style="background-color:#ffffff;padding:16px 0 16px 12px;vertical-align:top;border-radius:0 0 0 2px"></td><td style="vertical-align:middle;padding:12px 24px 16px 12px;width:99%;font-family:YahooSans, "Helvetica Neue", "Segoe UI", Helvetica, Arial, sans-serif;border-radius:0 0 2px 0"><h2 class="ydpa1d41519card-title" style="font-size: 14px; line-height: 19px; margin: 0px 0px 6px; font-family: YahooSans, "Helvetica Neue", "Segoe UI", Helvetica, Arial, sans-serif; color: rgb(29, 34, 40); max-width: 314px;">Monte Carlo evaluation of hypothetical long axial field‐of‐view PET scan...</h2><p class="ydpa1d41519card-description" style="font-size: 12px; line-height: 16px; margin: 0px; color: rgb(151, 158, 168);">Purpose The development of total-body PET scanners is of growing interest in the PET community. Investigation in...</p></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></a></div><div dir="ltr" data-setdir="false"> </div><div dir="ltr" data-setdir="false">So, my suggestion is to try setDepth values of 2, 3, and 4 (say, based on scanner config) and compare your count rates plot with the scanner measurement data, which would tell you which value you should take for further simulations.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Regards,</div><div dir="ltr" data-setdir="false">Ashok</div><div id="yahoo_quoted_2154268983" class="yahoo_quoted">
<div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;">
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On Friday, 2 September 2022 at 06:15:31 am GMT-4, Benoît Presles <benoit.presles@u-bourgogne.fr> wrote:
</div>
<div><br></div>
<div><br></div>
<div><div id="yiv4257907455"><div>
Dear Gate users,<br clear="none">
<div class="yiv4257907455moz-cite-prefix"><br clear="none">
</div>
<div class="yiv4257907455moz-cite-prefix">I am also interested in this parameter,
i.e. the /gate/digitizer/Coincidences/setDepth.<br clear="none">
</div>
<div class="yiv4257907455moz-cite-prefix">Could you provide more information
about it?<br clear="none">
</div>
<div class="yiv4257907455moz-cite-prefix"><br clear="none">
</div>
<div class="yiv4257907455moz-cite-prefix">Thanks in advance,<br clear="none">
</div>
<div class="yiv4257907455moz-cite-prefix">Best regards,</div>
<div class="yiv4257907455moz-cite-prefix">Ben<br clear="none">
</div>
<div class="yiv4257907455moz-cite-prefix"><br clear="none">
</div>
<div class="yiv4257907455moz-cite-prefix"><br clear="none">
</div>
<div id="yiv4257907455yqt16920" class="yiv4257907455yqt1439513794"><div class="yiv4257907455moz-cite-prefix">On 25/08/2022 08:19, Antoine Merlet
wrote:<br clear="none">
</div>
<blockquote type="cite">
</blockquote></div></div><div id="yiv4257907455yqt48386" class="yiv4257907455yqt1439513794"><div><div dir="ltr">
<div dir="ltr">Dear GATE users,
<div><br clear="none">
</div>
<div>Could you please provide some information about the use
of the <span style="font-family:Consolas, Menlo, Sans Vera Sans monospace;font-size:0.9em;color:rgb(88,40,0);" class="yiv4257907455gmail-o">/</span><span style="font-family:Consolas, Menlo, Sans Vera Sans monospace;font-size:0.9em;color:rgb(0,0,0);" class="yiv4257907455gmail-n">gate</span><span style="font-family:Consolas, Menlo, Sans Vera Sans monospace;font-size:0.9em;color:rgb(88,40,0);" class="yiv4257907455gmail-o">/</span><span style="font-family:Consolas, Menlo, Sans Vera Sans monospace;font-size:0.9em;color:rgb(0,0,0);" class="yiv4257907455gmail-n">digitizer</span><span style="font-family:Consolas, Menlo, Sans Vera Sans monospace;font-size:0.9em;color:rgb(88,40,0);" class="yiv4257907455gmail-o">/</span><span style="font-family:Consolas, Menlo, Sans Vera Sans monospace;font-size:0.9em;color:rgb(0,0,0);" class="yiv4257907455gmail-n">Coincidences</span><span style="font-family:Consolas, Menlo, Sans Vera Sans monospace;font-size:0.9em;color:rgb(88,40,0);" class="yiv4257907455gmail-o">/</span><span style="font-family:Consolas, Menlo, Sans Vera Sans monospace;font-size:0.9em;color:rgb(0,0,0);" class="yiv4257907455gmail-n">setDepth</span> digitizer
parameter? This parameter is very briefly described <a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="https://opengate.readthedocs.io/en/latest/digitizer_and_detector_modeling.html#command-line">here</a>, but I am not sure about
its effect and the value to be used (should it be
constrained by the readout depth for example?).</div>
<div><br clear="none">
</div>
<div>Thank you,</div>
<div>Antoine</div>
</div>
</div>
<br clear="none">
<fieldset class="yiv4257907455moz-mime-attachment-header"></fieldset>
<pre class="yiv4257907455moz-quote-pre">_______________________________________________
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