[Gate-users] Digitizer: Coincidences depth

[Ashok Tiwari]

Dear Antoine and Ben,
A few years back, I was wondering about the same question. I estimated the optimal value by simulating different setDepth values based on the scanner config I was using. My simulation simulated a Discovery MI scanner geometry, and for that scanner, I found that setDepth value of 2 is optimal. Results are here: Monte Carlo evaluation of hypothetical long axial field‐of‐view PET scanner using GE Discovery MI PET front‐end architecture

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Monte Carlo evaluation of hypothetical long axial field‐of‐view PET scan...

Purpose The development of total-body PET scanners is of growing interest in the PET community. Investigation in...
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 So, my suggestion is to try setDepth values of 2, 3, and 4 (say, based on scanner config) and compare your count rates plot with the scanner measurement data, which would tell you which value you should take for further simulations.
Regards,Ashok   On Friday, 2 September 2022 at 06:15:31 am GMT-4, Benoît Presles <benoit.presles at u-bourgogne.fr> wrote:  
 
  Dear Gate users,
 
  I am also interested in this parameter, i.e. the /gate/digitizer/Coincidences/setDepth.
  Could you provide more information about it?
  
  Thanks in advance,
  Best regards, Ben
  
  
  On 25/08/2022 08:19, Antoine Merlet wrote:
  
 
 Dear GATE users, 
  Could you please provide some information about the use of the /gate/digitizer/Coincidences/setDepth digitizer parameter? This parameter is very briefly described here, but I am not sure about its effect and the value to be used (should it be constrained by the readout depth for example?). 
  Thank you, Antoine   
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