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<div id="ecxx_x_divtagdefaultwrapper"><font style="font-size:12pt" face="Times New Roman" size="3"><i>Dear prof
<font size="2"><span style="font-size:11pt;">Uwe</span></font>, Bryan,<br>
<br>
<br>
I have tried many configurations , i have attached the proposed configuration, but there is no coincidence at all only hits. I just want to know where is the problem?</i></font></div>
<div id="ecxx_x_divtagdefaultwrapper"><font style="font-size:12pt" face="Times New Roman" size="3"><i>Thank you for your time and Considerations</i></font></div>
<div id="ecxx_x_divtagdefaultwrapper"><font style="font-size:12pt" face="Times New Roman" size="3"><i><br>
<br>
<br>
Kind regards,</i></font><br>
<font style="font-size:12pt" face="Times New Roman" size="3"></font><font style="font-size:12pt" face="Times New Roman" size="3"><i> </i></font><br>
<font style="font-size:12pt" face="Times New Roman" size="3"></font><font style="font-size:12pt" face="Times New Roman" size="3"><i> </i></font><br>
<font style="font-size:12pt" face="Times New Roman" size="3"><i>Amir Ghabrial</i></font><br>
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Today's Topics:<br>
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1. Re: quarter-sphere PET scanner (Amir Ghabrial) (Bryan McIntosh)<br>
2. Re: quarter-sphere PET scanner (Amir Ghabrial) (Pietrzyk, Uwe)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Wed, 20 Dec 2017 08:37:14 -0600<br>
From: Bryan McIntosh <mcintoshster@gmail.com><br>
To: "gate-users@lists.opengatecollaboration.org"<br>
<gate-users@lists.opengatecollaboration.org><br>
Cc: eng_amir_shawky@hotmail.com<br>
Subject: Re: [Gate-users] quarter-sphere PET scanner (Amir Ghabrial)<br>
Message-ID:<br>
<CAC6uAtDpf9d6uZmWwuhYB3pT6eKbdrBxaKKD2WPR9XLYLYsU+Q@mail.gmail.com><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hi Amir,<br>
<br>
Thinking briefly and without doing any testing, there are two approaches I<br>
can think of that would probably work.<br>
<br>
The first and easiest is to simulate the entire sphere, then discard any<br>
data from the rest of the sphere that is in the regions that would not be<br>
physically present. This would be relatively easy to do in your data<br>
analysis since you would just exclude detector data if the rsector (or<br>
equivalent) number is not within a certain range. The tradeoff to this is<br>
that your simulation would take longer than it would for simply a<br>
quarter-sphere, since it's calculating interactions for parts of the system<br>
that you will be discarding. The final data file size will be a great deal<br>
larger as well.<br>
<br>
The second approach would be to use the generic "scanner" architecture and<br>
place the detector segments in the world manually. This would require some<br>
very careful planning and use of the visualization system to verify that<br>
you've placed the segments properly in your quarter-sphere arrangement, but<br>
the simulations themselves would run more quickly.<br>
<br>
I hope this is helpful!<br>
<br>
-Bryan<br>
<br>
On Wed, Dec 20, 2017 at 5:00 AM, <<br>
gate-users-request@lists.opengatecollaboration.org> wrote:<br>
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> or, via email, send a message with subject or body 'help' to<br>
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> than "Re: Contents of Gate-users digest..."<br>
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> Today's Topics:<br>
><br>
> 1. quarter-sphere PET scanner (Amir Ghabrial)<br>
><br>
><br>
> ----------------------------------------------------------------------<br>
><br>
> Message: 1<br>
> Date: Tue, 19 Dec 2017 15:48:47 +0000<br>
> From: Amir Ghabrial <eng_amir_shawky@hotmail.com><br>
> To: "gate-users@lists.opengatecollaboration.org"<br>
> <gate-users@lists.opengatecollaboration.org><br>
> Subject: [Gate-users] quarter-sphere PET scanner<br>
> Message-ID:<br>
> <DM5PR03MB25076875A199F6BA64F386DBAB0F0@DM5PR03MB2507.<br>
> namprd03.prod.outlook.com><br>
><br>
> Content-Type: text/plain; charset="iso-8859-1"<br>
><br>
> Dear all<br>
><br>
> I just want to add a block detectors on a quarter-sphere scanner so how I<br>
> can do that while there are only linear and ring repeaters.<br>
><br>
> I tried the sphere repeater but it doesn't work and give me an error, as<br>
> it only repeats the whole sphere and I want to simulate just a quarter of a<br>
> sphere.<br>
> Thank you all for your time and Considerations<br>
><br>
><br>
> Kind regards,<br>
><br>
> Amir Ghabrial<br>
> PhD Research Student<br>
><br>
> -------------- next part --------------<br>
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><br>
> Subject: Digest Footer<br>
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<br>
------------------------------<br>
<br>
Message: 2<br>
Date: Wed, 20 Dec 2017 18:23:11 +0000<br>
From: "Pietrzyk, Uwe" <u.pietrzyk@fz-juelich.de><br>
To: Bryan McIntosh <mcintoshster@gmail.com><br>
Cc: "eng_amir_shawky@hotmail.com" <eng_amir_shawky@hotmail.com>,<br>
"gate-users@lists.opengatecollaboration.org"<br>
<gate-users@lists.opengatecollaboration.org><br>
Subject: Re: [Gate-users] quarter-sphere PET scanner (Amir Ghabrial)<br>
Message-ID: <C8992F5C-8919-45BE-8052-86A096A1D253@fz-juelich.de><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hi Amir, hi Bryan,<br>
<br>
I once played with a spherical or partial -spherical crystal arrangement.<br>
Maybe you find something useful in the fragments I have attached.<br>
I adjusted theta and phi via specifying aliases {CrystalTheStart} and<br>
{CrystalDeltaThe}. You should probably have a look at the SPECTRO-<br>
module of the current EduGATE-collection. I am working on a new<br>
and updated release, but it might still be helpful as it is now.<br>
<br>
All the best and kind regards,<br>
<br>
Uwe<br>
<br>
<br>
/----------------------------------------------------------------------<br>
Prof. Dr. Uwe Pietrzyk<br>
Diplom-Physiker<br>
Institut für Neurowissenschaften und Medizin / INM-4<br>
Forschungszentrum Jülich GmbH<br>
52425 Jülich<br>
Tel: +49-2461-61 4763<br>
Fax: +49-2461-61 2820<br>
Mobil: +49-162-103-4871<br>
eMail: U.Pietrzyk@fz-juelich.de<br>
<a href="http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html">http://www.fz-juelich.de/inm/inm-4/DE/Home/home_node.html</a><br>
&<br>
Bergische Universität Wuppertal<br>
Fakultät für Mathematik und Naturwissenschaften<br>
Büro: D.08.01<br>
Gaußstr. 20<br>
42097 Wuppertal<br>
Tel: +49-(0)202-439-3523<br>
Fax: +49-(0)202-439-2811<br>
eMail: Uwe.Pietrzyk@uni-wuppertal.de<br>
<a href="http://www.medizinphysik.uni-wuppertal.de">http://www.medizinphysik.uni-wuppertal.de</a><br>
----------------------------------------------------------------------/<br>
<br>
<br>
<br>
<br>
<br>
> On 20. Dec 2017, at 15:37, Bryan McIntosh <mcintoshster@gmail.com> wrote:<br>
> <br>
> Hi Amir,<br>
> <br>
> Thinking briefly and without doing any testing, there are two approaches I can think of that would probably work.<br>
> <br>
> The first and easiest is to simulate the entire sphere, then discard any data from the rest of the sphere that is in the regions that would not be physically present. This would be relatively easy to do in your data analysis since you would just exclude detector
data if the rsector (or equivalent) number is not within a certain range. The tradeoff to this is that your simulation would take longer than it would for simply a quarter-sphere, since it's calculating interactions for parts of the system that you will be
discarding. The final data file size will be a great deal larger as well.<br>
> <br>
> The second approach would be to use the generic "scanner" architecture and place the detector segments in the world manually. This would require some very careful planning and use of the visualization system to verify that you've placed the segments properly
in your quarter-sphere arrangement, but the simulations themselves would run more quickly.<br>
> <br>
> I hope this is helpful!<br>
> <br>
> -Bryan<br>
> <br>
> On Wed, Dec 20, 2017 at 5:00 AM, <gate-users-request@lists.opengatecollaboration.org <<a href="mailto:gate-users-request@lists.opengatecollaboration.org">mailto:gate-users-request@lists.opengatecollaboration.org</a>>> wrote:<br>
> Send Gate-users mailing list submissions to<br>
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> than "Re: Contents of Gate-users digest..."<br>
> <br>
> <br>
> Today's Topics:<br>
> <br>
> 1. quarter-sphere PET scanner (Amir Ghabrial)<br>
> <br>
> <br>
> ----------------------------------------------------------------------<br>
> <br>
> Message: 1<br>
> Date: Tue, 19 Dec 2017 15:48:47 +0000<br>
> From: Amir Ghabrial <eng_amir_shawky@hotmail.com <<a href="mailto:eng_amir_shawky@hotmail.com">mailto:eng_amir_shawky@hotmail.com</a>>><br>
> To: "gate-users@lists.opengatecollaboration.org <<a href="mailto:gate-users@lists.opengatecollaboration.org">mailto:gate-users@lists.opengatecollaboration.org</a>>"<br>
> <gate-users@lists.opengatecollaboration.org <<a href="mailto:gate-users@lists.opengatecollaboration.org">mailto:gate-users@lists.opengatecollaboration.org</a>>><br>
> Subject: [Gate-users] quarter-sphere PET scanner<br>
> Message-ID:<br>
> <DM5PR03MB25076875A199F6BA64F386DBAB0F0@DM5PR03MB2507.namprd03.prod.outlook.com <<a href="mailto:DM5PR03MB25076875A199F6BA64F386DBAB0F0@DM5PR03MB2507.namprd03.prod.outlook.com">mailto:DM5PR03MB25076875A199F6BA64F386DBAB0F0@DM5PR03MB2507.namprd03.prod.outlook.com</a>>><br>
> <br>
> Content-Type: text/plain; charset="iso-8859-1"<br>
> <br>
> Dear all<br>
> <br>
> I just want to add a block detectors on a quarter-sphere scanner so how I can do that while there are only linear and ring repeaters.<br>
> <br>
> I tried the sphere repeater but it doesn't work and give me an error, as it only repeats the whole sphere and I want to simulate just a quarter of a sphere.<br>
> Thank you all for your time and Considerations<br>
> <br>
> <br>
> Kind regards,<br>
> <br>
> Amir Ghabrial<br>
> PhD Research Student<br>
> <br>
> -------------- next part --------------<br>
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