[gate-users] cylindricalPET

[Yun Dong]

Thanks Yuxuan and Fernando. Just now I set the minSectorDifference as 
1, then I got the coincidence output file. But as what Fernando said, 
coincidences under setting 1 are maybe not valid. I feel confused 
about this configure. What's "block" mean? Does its meaning depend on 
the setting of "readout/setDepth"? Thanks.

Yun

----- Original Message -----
From: Fernando Rannou <rannou at diinf.usach.cl>
Date: Tuesday, July 19, 2005 9:20 am
Subject: Re: [gate-users] cylindricalPET

> That's pretty good.  I actually found that there is a typo
> in the User's guide on page 96. The coincidences will be valid
> if the difference in block numbers is greater than or equal to 2,
> not just greater than. Because otherwise if you set to 1 you
> would still not get any coincidences and a value of 0 is not
> allowed.
> 
> Fernando
> 
> 
> On Tue, 2005-07-19 at 13:43 -0500, yuxuan.zhang at di.mdacc.tmc.edu 
> wrote:> 
> > Hi, 
> > 
> > I think this is because you only have two rsectors defined in the
> > cylindricalPET system. 
> > And for the coincidences sort, it will reject the coincidencs 
> between> neighbour rsectors. 
> > you should change the vaule by set: 
> > /gate/digitizer/Coincidences/minSectorDifference [number] 
> > The default [number] is 2. and for your system, the [number] 
> should be
> > 1. 
> > 
> > See the manual  8.2.13. Coincidences sorter. 
> > 
> > 
> > yuxuan 
> > 
> > 
> > _______________________________________________
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> > gate-users at lphe1pet1.epfl.ch
> > http://lphe1pet1.epfl.ch/mailman/listinfo/gate-users
> 
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