[Gate-users] Regarding ASCII SINGLES OUTPUT

[Vesna Cuplov]

Hello,

I have enabled optical photon generation, and I have included opticaladder.
>
> I want to know how many photons had hit a particular pmt (in gate user
> guide it is mentioned that
> by using optical adder, one gets the information about the number of
> photons and not the energy of the photons).
>

This sentence has been removed in the Gatev6.2 users guide: The optical
adder adds energies.

But my ascii singles file does not seem to give the details properly. here
> is a sample of the ascii optical singles output --------
>
> 0    1768     4  -5.000e+01 -2.200e+02  0.000e+00     0     0     0
> 7.60134730474956721302249e-03  1.488e+03 -4.809e+01 -1.649e+02 -3.745e-01
>  0    0    0    0 NULL NULL
>

> column no 7 to 12 (0     0     0   7.60134730474956721302249e-03
>  1.488e+03 -4.809e+01) are supposed to be the volume IDs but I don't know
> how to interpret these floating point numbers!
>

Be careful, volumeIDs depend on the system that you use for your
simulation. You use a cylindrical PET as a system?

It seems to me that you use a SPECThead?

>From the users guide, I read:

columns 4,5,6 are the source position:  -5.000e+01 -2.200e+02  0.000e+00
columns 7, 8, 9 are the volumeIDs: 0     0     0
time: 7.60134730474956721302249e-03
Energy deposited by single: 1.488e+03
position of the single: -4.809e+01 -1.649e+02 -3.745e-01
Compton and Rayleigh stuff: 0    0    0    0 NULL NULL

vesna
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