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Task #20621

Update noise simulation for ProtoDUNE single phase

Added by Tingjun Yang almost 2 years ago. Updated almost 2 years ago.

Status:
Feedback
Priority:
Normal
Assignee:
David Adams
Start date:
08/15/2018
Due date:
% Done:

0%

Estimated time:
Duration:

Description

It would be great if we could update the noise simulation for ProtoDUNE single phase.

History

#1 Updated by David Adams almost 2 years ago

The goal is to have noise level and frequency spectrum similar to that seen in the data.

The simulation uses ExponentionalNoiseSevice which has exponentially falling noise with a flat floor at high frequency. The data also flattens out at low frequency below 200 kHz.

The service has parameters for a low frequency rollover but when I change one of those, I see a sharp drop below the specified frequency.

I have modified the code so that a negative value for the rollover frequency give a flat spectrum below the magnitude of that value. I will now try to tune the params so sim matches data.

#2 Updated by David Adams almost 2 years ago

  • Status changed from New to Closed

I have added a tune pdsp_chnoiseAug2018 to dunetpc/dune/DetSim/fcl/detsimmodules_dune.fcl. See my talk at the Sep 5 DRA meeting: https://indico.fnal.gov/event/18166.

The changes are pushed to dunetpc.

#3 Updated by David Adams almost 2 years ago

  • Status changed from Closed to Feedback

Tingjun:

Should we make this the default for protoDUNE simulation?

da

#4 Updated by Tingjun Yang almost 2 years ago

Hi David,

Do you expect things will change when the electrons are immersed in the liquid? I am OK with making this default now and update it later if there are changes.

Thanks,
Tingjun

#5 Updated by David Adams almost 2 years ago

I guess we will see tomorrrow. We can wait until then to make any changes. Thanks. --david

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