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[videbaek <videbaek AT bnl.gov>]

Hi Xu,

I have two questions/comments where you should clarify the algoritm or 
conditions
based on work earlier.

a) For the CMN calculation you take a sum in a group over non hit 
channels?
What is the decision for not having a hit? I assume it is adc value of 
pedestal+some range ofCMN noise.

b) There should be a description how many times bins are considered in 
calculation, and if pedestal e.g depends on bin or not.

c) How many time bins should be kept?


bet Flemming

On 2021-08-03 09:43, Xu Sun wrote:
> Hi Tonko,
>
> We have prepared a document about how to calculate/subtract the common
> mode noise in the online ZS DAQ.
> Please find it in the following link:
> https://drive.google.com/file/d/1qsd1Uy71ARPRlVVw9GImlvAac9rTlxv9/view?usp=sharing
> [1]
>
> Comments and suggestions are welcome.
> Please let us know what we could help to implement this to the DAQ
> software.
>
> Best,
>
> Xu
>
> Links:
> ------
> [1] 
> https://urldefense.com/v3/__https://drive.google.com/file/d/1qsd1Uy71ARPRlVVw9GImlvAac9rTlxv9/view?usp=sharing__;!!P4SdNyxKAPE!SYbPJlMfRzEwwZGlh3SGXO7K5XqueHjMtgCJEi1gh7QjADFyYN-XL6sEjRaU7wrUPtV0C7c$
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Flemming Videbaek
senior scientist
videbaek @ bnl.gov
Brookhaven National Lab
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