[gate-users] Image Quality Phantom

[Mutanga Theodore]

Hi All

I am still having problems setting a background source for the NEMA-like
phantom from ROSS. Please if anyone has some ideas I would be glad to
know, I wish to put the spheres in a warm background but the each time I
do that using confine, the geometry test fails and the reconstructed
images only show the six spheres with no background. I'd like to know if
someone has succeeded in doing a simillar thing so that we can share
experiences and ideas.

Cheers

Theodore


> Hi Theo,
>
> I haven't used this phantom for anything yet but perhaps the easiest way
> is to use large box source and then use the confine command.  No too
> efficient but it shouldn't be too slow.
>
> ross
>
> -----Original Message-----
> From: gate-users-bounces at lphe1pet1.epfl.ch
> [mailto:gate-users-bounces at lphe1pet1.epfl.ch] On Behalf Of Mutanga
> Theodore
> Sent: Monday, January 17, 2005 5:58 AM
> To: GATE feedback and helpline for Users
> Subject: RE: [gate-users] Image Quality Phantom
>
>
> Hi Ross, sorry to bother you again, but How do you set the bacground
> source in your Image quality macros? I tried to creat sources for the
> four parts of the phantom to act as background.  But the GPS commands
> does permit me to use commands like /setPhiStart 0. deg /setDeltaPhi
> 180. deg
>
> so its a bit hard to set background sources using  the four parts of the
> phantom without overlap. I will be greatful for your help.
>
> Theo
>
>> Hi Theodore,
>>
>> I wrote one up some time ago when I was getting started with Gate.  I
>> haven't used it much but it should be OK.
>>
>> ross
>>
>> -----Original Message-----
>> From: gate-users-bounces at lphe1pet1.epfl.ch
>> [mailto:gate-users-bounces at lphe1pet1.epfl.ch] On Behalf Of Mutanga
>> Theodore
>> Sent: Monday, December 27, 2004 5:47 PM
>> To: gate-users at lphe1pet1.epfl.ch
>> Subject: [gate-users] Image Quality Phantom
>>
>>
>> Hello,
>> does anyone have a macro for simulating the geometry including sources
>
>> as depicted in the NEMA IQ phantom ? I need both the volumes and
>> inserts with sources
>>
>> Cheers
>>
>>
>> Theodore
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