[gate-users] cylindricalPET

[Fernando Rannou]

Hi Yun
you should get coincidences. Among the questions I would ask are:
1) What kind of output are you using? I assume you set the digitizer
appropriately to collect coincidences.
2) how much activity, for how long?
3) are you simulating a positron emitter (of course)?
4) How big are the detectors with respect to the FOV?

Fernando



On Mon, 2005-07-18 at 12:10 -0500, Yun Dong wrote:
> Hi everyone,
> I am just simulating two parallel-panels PET system through
> cylindricalPET system in GATE. Howver, I never get coincidences, just
> GateSingles. Does it mean that cylindricalPET can never simulate the
> open two parallel-detector PET system? Dose anybody have some idesa?
> Thank you so much.
> 
> Best Regards
> Yun
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