[gate-users] Re: gate-users Digest, Vol 4, Issue 8

[steven staelens]

gate-users-request at lphe1pet1.epfl.ch wrote:

> Send gate-users mailing list submissions to
>         gate-users at lphe1pet1.epfl.ch
>
> To subscribe or unsubscribe via the World Wide Web, visit
>         http://lphe1pet1.epfl.ch/mailman/listinfo/gate-users
>
> Please use the GATE's site webmaster e-mail to  reach the person
> managing the list.
>
> Today's Topics:
>
>    1. Two head PET system (Frezghi Habte)
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 10 Jul 2004 23:11:32 -0700
> From: Frezghi Habte <fhabte at stanford.edu>
> Subject: [gate-users] Two head PET system
> To: gate-users at lphe1pet1.epfl.ch
> Message-ID:
>         <6.0.1.1.0.20040710225811.0246edf8 at fhabte.pobox.stanford.edu>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> Hi,
>
> We recently started running gate in our lab. After running the benchmarks
> and few examples, I started to simulated two head PET system. Some how, I
> was not able to get a Coincidence data. The same code for 4-head PET system
> works fine. I also changed the default proximity difference in the block
> number to 1, but I got the same result. Please let me know what type of
> system I should you use for two head PET system. I have tried the
> PETscanner, cylindricalPET and ecat systems.
>

Hi Frezghi,

You are definitly thinking in the right direction.  Try to avoid the proximity
check (hardcoded if necessary) in your two head system and you will see that
coincidences will start to show up,

good luck,

Steven

Steven Staelens
Ghent University
ELIS Department
Proeftuinstraat 86
B-9000 Gent
tel.  +32 9 264 66 28
fax. +32 9 264 66 18
Steven.Staelens at ugent.be




>
> Regards
> Frezghi
> ------------------------------------
> Frezghi Habte, Ph.D.
> Stanford University Medical Center
> Department of Radiology
> Molecular Imaging Instrumentation Laboratory
> 300 Pasteur Drive, Edwards Bldg. Rm. R354
> Stanford, CA 94305-5344
> -------------------------------------
>
> ------------------------------
>
> _______________________________________________
> gate-users mailing list
> gate-users at lphe1pet1.epfl.ch
> http://lphe1pet1.epfl.ch/mailman/listinfo/gate-users
>
> End of gate-users Digest, Vol 4, Issue 8
> ****************************************