[Gate-users] No Coincidences output

lupa euy lupalagieuy at yahoo.com
Thu Oct 20 07:05:04 CEST 2011


hi, 

still on the no coincidences error.. 

I found out there are some error 



command </gate/output/root/setRootHitsFlag 0> not found
command </grdm/verbose 0> not found
command </gate/stacking/verbose 0> not found
command </gate/event/verbose 0> not found


therefore I get the Hits has lots of entries.

buy why the coincidence empty ??? 

regards


_______________________________
From: Marlen Priegnitz <m.priegnitz at hzdr.de>
To: 山中 琢 <takuyama at med.hokudai.ac.jp>
Cc: gate-users <gate-users at lists.opengatecollaboration.org>
Sent: Wednesday, October 19, 2011 3:56 PM
Subject: Re: [Gate-users] No Coincidences output


Hello,

what kind of PETscanner do you have?
Is it a full ring or a double head scanner?
If it is a double head scanner, maybe it has something to do with 
minSectorDifference?
Maybe this works:  /gate/digitizer/Coincidences/minSectorDifference 1

Kind regards,
Marlen



Am 19.10.2011 08:44, schrieb 山中 琢:
> Hello Gaters,
>
> I'm trying to get the output for the coincidences, but somehow it doesn't
> work at all.
> I set the system as PETscanner, and the coincidence output flag as 1, so it
> should give me some coincidences, but the ASCIICoincidences.dat has nothing
> inside it, ROOT neither.
> Singles output is working alright.
> My digitizer setup is as below.
> What do I need to add to this?
>
> Thanks.
>
> Taku Yamanaka
> ----
> # DIGITIZER
> /gate/digitizer/Singles/insert                adder
> /gate/digitizer/Singles/insert                readout
> /gate/digitizer/Singles/readout/setDepth    2 #9 for digitize PMT?
>
> # ENERGY BLURRING
> /gate/digitizer/Singles/insert blurring
> /gate/digitizer/Singles/blurring/setResolution            0.19
> /gate/digitizer/Singles/blurring/setEnergyOfReference    511. keV
>
> # ENERGY WINDOW 350-600keV
> /gate/digitizer/Singles/insert                        thresholder
> /gate/digitizer/Singles/thresholder/setThreshold    10. keV
>
> # COINCIDENCE SORTER
> /gate/digitizer/Coincidences/setWindow    50. ns
> /gate/digitizer/Coincidences/MultiplesPolicy    takeAllGoods
> /gate/digitizer/Coincidences/setDepth    2
> _______________________________________________
> Gate-users mailing list
> Gate-users at lists.opengatecollaboration.org
> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users

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