[Gate-users] ROOT

[P. T.]

Dear Gaters,

I have some questions on the benchSPECTRA.txt file.

________________________________________________________________________

####################################################
##### ####
##### SPECT BENCHMARK RESULTS ####
##### OpenGATE Collaboration ####
##### ####
####################################################
##### Number of emitted particles : 17990083.000000
##### Number of detected counts from 20 to 190 keV : 35921.000000
##### Primary events : 12882.000000
##### Scatter in the phantom : 19124.000000
##### Scatter in the table : 996.000000
##### Scatter in the collimator: 139.000000
##### Scatter in the crystal : 2301.000000
##### Scatter in the backcompartment : 478.000000
##### Scatter order 1: 11148.000000
##### Scatter order 2 : 6027.000000
##### Scatter order 3 : 2989.000000
##### Scatter order 4 : 1494.000000
##### Scatter order >4 : 1381.000000
_______________________________________________________________________

What is scatter order 1, 2 3 and 4? Are these scattering events in the
all of the modules?
The total of primary and scatter events is 35920 whereas " Number of
detected counts from 20 to 190 keV is 35921.000000" !! This
differences is larger in my simulation, Sometimes! Why the numbers are
not equal to each other, exactly?

Cheers,
Pat