<div dir="ltr"><div dir="ltr"><div>Hello,</div><div><br></div><div>I have a simple phantom using Gate and I scanned it using CT (as the Gate examples) and I want to find the dose absorbed by this phantom.</div><div>I appreciate any help you can provide. </div><div><br></div><div>Regards,</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, 25 Jan 2021 at 14:46, <<a href="mailto:gate-users-request@lists.opengatecollaboration.org">gate-users-request@lists.opengatecollaboration.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">Send Gate-users mailing list submissions to<br>
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Today's Topics:<br>
<br>
   1. Re: How to set the timing resolution of Two-layer detector<br>
      (Ane Etxebeste)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Mon, 25 Jan 2021 10:35:49 +0100<br>
From: Ane Etxebeste <<a href="mailto:ane.etxebeste@creatis.insa-lyon.fr" target="_blank">ane.etxebeste@creatis.insa-lyon.fr</a>><br>
To: Maxime Toussaint <Maxime.Toussaint@USherbrooke.ca>, 김수환<br>
        <<a href="mailto:ksh2454178@naver.com" target="_blank">ksh2454178@naver.com</a>>, "<a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a>"<br>
        <<a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a>><br>
Subject: Re: [Gate-users] How to set the timing resolution of<br>
        Two-layer detector<br>
Message-ID:<br>
        <<a href="mailto:835a2a0f-def1-0866-26a2-5278585d34d9@creatis.insa-lyon.fr" target="_blank">835a2a0f-def1-0866-26a2-5278585d34d9@creatis.insa-lyon.fr</a>><br>
Content-Type: text/plain; charset="utf-8"; Format="flowed"<br>
<br>
Hi,<br>
<br>
If the layer volumes have different names, in principle, you should be <br>
able to apply "localTimeResolution" module.<br>
<br>
Below you can find the commands to set a different time resolution to <br>
two different SD detectors called layer1 and layer2.<br>
<br>
<br>
/gate/digitizer/Singles/insert localTimeResolution<br>
<br>
/gate/digitizer/Singles/localTimeResolution/chooseNewVolume layer1<br>
/gate/digitizer/Singles/localTimeResolution/layer1/setTimeResolution 10 ns<br>
/gate/digitizer/Singles/localTimeResolution/chooseNewVolume layer2<br>
/gate/digitizer/Singles/localTimeResolution/layer2/setTimeResolution 15 ns<br>
<br>
<br>
Did it work?<br>
<br>
<br>
Best regards,<br>
<br>
Ane<br>
<br>
<br>
On 25/01/2021 06:04, Maxime Toussaint wrote:<br>
> Greetings,<br>
><br>
> I have never worked with the "Compton camera imaging" part of Gate. <br>
> Read carefully that section to make sure it applies for your case of <br>
> interest.<br>
><br>
> About your second question, I believe that Gate user either set the <br>
> same tof resolution for both layer or add the tof blur after the <br>
> simulation. The concept of layer-dependent tof resolution is kinda new <br>
> compared to Gate, after all.<br>
><br>
> About your third question, I would, assuming that Gate can't define a <br>
> layer-dependent tof resolution, add the tof blur after the simulation.<br>
><br>
> Bests,<br>
> Maxime Toussaint<br>
> ------------------------------------------------------------------------<br>
> *De :* 김수환 <<a href="mailto:ksh2454178@naver.com" target="_blank">ksh2454178@naver.com</a>><br>
> *Envoyé :* 24 janvier 2021 23:40<br>
> *À :* Maxime Toussaint <Maxime.Toussaint@USherbrooke.ca>; <br>
> <a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a> <br>
> <<a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a>><br>
> *Objet :* Re: [Gate-users] How to set the timing resolution of <br>
> Two-layer detector<br>
><br>
> Hi Maxime Toussaint.<br>
><br>
> Thank you very much for your reply<br>
><br>
> I have seen '6.4.7.Local time resolution' in the GATE user guide.<br>
><br>
> It looks possible, doesn't it?<br>
><br>
> If not, how do GATE users generally use?<br>
><br>
> Do you enter the average of the two time resolution values?<br>
><br>
> Very difficult<br>
><br>
> Thank you.<br>
><br>
> Su Hwan Kim<br>
><br>
> -----Original Message-----<br>
> *From:* "Maxime Toussaint"<Maxime.Toussaint@USherbrooke.ca><br>
> *To:* <br>
> "<a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a>"<<a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a>>;<br>
> *Cc:*<br>
> *Sent:* 2021-01-25 (월) 12:16:16 (GMT+09:00)<br>
> *Subject:* Re: [Gate-users] How to set the timing resolution of <br>
> Two-layer detector<br>
><br>
> Greetings,<br>
> To the best of my knowledge, the Single digitizer treat every crystal <br>
> equal. Thus, you cannot use Gate as-is to set multiple values of <br>
> timing resolution. You must either modify Gate to enable this feature <br>
> or add the timing blur after the simulation.<br>
> Bests,<br>
> Maxime Toussaint<br>
> ------------------------------------------------------------------------<br>
> *De :* Gate-users <<a href="mailto:gate-users-bounces@lists.opengatecollaboration.org" target="_blank">gate-users-bounces@lists.opengatecollaboration.org</a>> <br>
> de la part de 김수환 <<a href="mailto:ksh2454178@naver.com" target="_blank">ksh2454178@naver.com</a>><br>
> *Envoyé :* 24 janvier 2021 21:16<br>
> *À :* <a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a> <br>
> <<a href="mailto:gate-users@lists.opengatecollaboration.org" target="_blank">gate-users@lists.opengatecollaboration.org</a>><br>
> *Objet :* [Gate-users] How to set the timing resolution of Two-layer <br>
> detector<br>
><br>
> Dear GATE users<br>
><br>
> I'm designing a two-layer PET detector.<br>
><br>
> I know the time resolution for each crystal.<br>
><br>
> The time resolution of the crystal at the bottom is 140.8 ps and the <br>
> crystal at the top is 244.0 ps.<br>
><br>
> How do I set the digitizer?<br>
><br>
> Below is the digitizer in my macro file.<br>
><br>
> ----------------------------------------------------------------------<br>
><br>
> #D I G I T I Z E R<br>
><br>
> /gate/digitizer/Singles/insert adder<br>
><br>
> /gate/digitizer/Singles/insert readout<br>
><br>
> /gate/digitizer/Singles/readout/setDepth 4<br>
><br>
> /gate/digitizer/Singles/insert blurring<br>
><br>
> /gate/digitizer/Singles/blurring/setLaw linear<br>
><br>
> /gate/digitizer/Singles/blurring/linear/setResolution 0.15<br>
><br>
> /gate/digitizer/Singles/blurring/linear/setEnergyOfReference 511. keV<br>
><br>
> /gate/digitizer/Singles/insert thresholder<br>
><br>
> /gate/digitizer/Singles/thresholder/setThreshold 450. keV<br>
><br>
> /gate/digitizer/Singles/insert upholder<br>
><br>
> /gate/digitizer/Singles/upholder/setUphold 650. keV<br>
><br>
> /gate/digitizer/Singles/insert timeResolution<br>
><br>
> ???????????????????????????????????????????<br>
><br>
> -----------------------------------------------------------------------<br>
><br>
> I need your help.<br>
><br>
> Thank you.<br>
><br>
><br>
><br>
> _______________________________________________<br>
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</blockquote></div>