[Gate-users] SPECT Intrinsic spatial resolution

[HUSSAIN KHALID / UPM]

Dear Gate Users,
Please see the geometry, I did not get a projection image for intrinsic
spatial resolution. I am trying to solve but yet could not get any solution.

Any help will be highly appreciated.

On Fri, May 29, 2020 at 10:40 AM HUSSAIN KHALID / UPM <
gs54017 at student.upm.edu.my> wrote:

> Dear Gate Users,
>
> I am calculating intrinsic spatial resolution of siemen symbia T gamma
> camera for model validation. I need some help for checking geometry
> (specifically lead mask), source and may be the output section as I do not
> get projection image after simulating 10,000,000 primary particles.
>
> I read NEMA guidelines, as per NEMA standard, the point source should be
> at the distance of 5 times UFOV. In case of the above mentioned gamma
> camera, the FOV is 53.3 cm x 38.7 cm. So, I placed pointsource 193.5cm away
> from the detector. In this way, the point source looks to be too far from
> the detector which causes less particles to arrive up to the detector.
>
>
> Secondly, there is also a lead mask of 3mm depth, 1mm width and 30mm gape
> among adjacent strips nearest to the detector which you can see in the
> geometry.mac file.
>
>
> Any help is appreciated.
>
>
> Regards
> *HUSSAIN*
>


-- 


Regards
*HUSSAIN*
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