Difference between revisions of "Data Acquisition System"

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=='''DAQ Hardware'''==
 
=='''DAQ Hardware'''==
  
−
* Electronic Map of Mott Crates (February 12, 2014):
+
* Electronic Map of Mott Crates (May 06, 2014):
−
[[Media:ElectronicsMap_Feb122014.pdf]]
+
[[Media:ElectronicsMap_May062014.pdf]]
  
−
[[Media:ElectronicsMap_Feb122014.pptx]]
+
[[Media:ElectronicsMap_May062014.pptx]]
  
 
* Cabling of FADC, Scalers, and TDC (February 12, 2014):  
 
* Cabling of FADC, Scalers, and TDC (February 12, 2014):  
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[[Media:DAQ_Timing_Feb122014.pptx]]
 
[[Media:DAQ_Timing_Feb122014.pptx]]
 +
 +
* Discriminator threshold adjustments (18January2015):
 +
[[Media:Discriminator_threshold_adjustment.odt]]
 +
 +
[[Media:Discriminator_threshold_adjust.ods]]
 +
  
  
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=='''DAQ Software'''==
 
=='''DAQ Software'''==
  
−
* [[How to run CODA]]
+
* '''[[How to run CODA]]'''
 +
 
 +
* '''[[Online Monitoring]]'''
  
−
* [[Online Monitoring]]
+
* '''[[Mott Analysis]]'''
  
−
* [[Mott Analysis]]
+
* '''[[CODA Summary]]'''
  
−
* [[CODA Summary]]
+
* '''[[CODA Scripts]]'''
  
−
* [[CODA Scripts]]
 
  
  
  
 
=='''Manuals and References'''==
 
=='''Manuals and References'''==
−
* Jefferson Lab Data Acquisition Group CODA Wiki [https://coda.jlab.org/wiki/index.php/Main_Page]
+
* Jefferson Lab Data Acquisition Group CODA Wiki [https://coda.jlab.org/drupal/]
  
 
* CAEN VME Crate Manual - VME8200 9U 21Slot (VME64x backplane with no P0 connector) [[media:VME8200_Manual.pdf]]
 
* CAEN VME Crate Manual - VME8200 9U 21Slot (VME64x backplane with no P0 connector) [[media:VME8200_Manual.pdf]]
 +
  
  
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=='''To-do List'''==
 
=='''To-do List'''==
  
−
  Analysis List:
+
  * Analysis List:
 +
# Add delayed helicity analysis for Mott_Sample and Mott_SemiInt Modes. Delayed analysis is already included for Scalers and PEPPo_Int Modes.
 +
# Modify decoder for the updated Mott_SemiInt mode. Started: /work/idaq/Mott/Analysis/1, Runs: 7642, 7672. Sample: 7673
 
# Update MottOnline
 
# Update MottOnline
−
# Add BPM Analysis
 
 
# Replace "PEPPo" with "Mott" in scripts, decoder, ... .
 
# Replace "PEPPo" with "Mott" in scripts, decoder, ... .
−
# Add delayed helicity analysis for Mott_Sample and Mott_SemiInt Modes. Delayed analysis is already included for Scalers and
 
−
PEPPo_Int Modes.
 
  
−
  Things to do to speed up the DAQ and reduce deadtime:
+
 
−
# Change Mott_SemiInt to the new mode: reads integral and pedestal instead of only integral
+
  * '''[[New Delayed Helicity Readout Scheme for Physics Events Trigger]]'''
−
# Upgrade the time-of-flight readout to the FADC TDC mode
 
−
# upgrade the scalers readout to the FADC Scaler mode
 
−
# Add Block Readout
 
  
  
−
  9- At one time, we used minicom to hard reboot the Mott DAQ VME crate. This service was discontinued. Instead, we will use the RS232
+
  * Things to do to speed up the DAQ and reduce deadtime:
−
connection on the CAEN VME64X VME8200.
+
# Use the new SemiIntFast Mode:
 +
## Upgrade the time-of-flight readout to the FADC TDC mode
 +
## Upgrade the scalers readout to the FADC Scaler mode
 +
## Add Block Readout
 +
# Reduce the Mott Trigger rate by rejecting low energy electrons or dump events:
 +
## Increase E-detector discriminator thresholds
 +
## Veto dump events using beam timing signal

Latest revision as of 15:03, 30 May 2017

DAQ Hardware

  • Electronic Map of Mott Crates (May 06, 2014):

Media:ElectronicsMap_May062014.pdf

Media:ElectronicsMap_May062014.pptx

  • Cabling of FADC, Scalers, and TDC (February 12, 2014):

Media:Cable_Feb122014.pdf

Media:Cable_Feb122014.pptx

  • DAQ Timing (February 12, 2014):

Media:DAQ_Timing_Feb122014.pdf

Media:DAQ_Timing_Feb122014.pptx

  • Discriminator threshold adjustments (18January2015):

Media:Discriminator_threshold_adjustment.odt

Media:Discriminator_threshold_adjust.ods



DAQ Software



Manuals and References

  • Jefferson Lab Data Acquisition Group CODA Wiki [1]



To-do List

* Analysis List:
  1. Add delayed helicity analysis for Mott_Sample and Mott_SemiInt Modes. Delayed analysis is already included for Scalers and PEPPo_Int Modes.
  2. Modify decoder for the updated Mott_SemiInt mode. Started: /work/idaq/Mott/Analysis/1, Runs: 7642, 7672. Sample: 7673
  3. Update MottOnline
  4. Replace "PEPPo" with "Mott" in scripts, decoder, ... .


* New Delayed Helicity Readout Scheme for Physics Events Trigger



* Things to do to speed up the DAQ and reduce deadtime:
  1. Use the new SemiIntFast Mode:
    1. Upgrade the time-of-flight readout to the FADC TDC mode
    2. Upgrade the scalers readout to the FADC Scaler mode
    3. Add Block Readout
  2. Reduce the Mott Trigger rate by rejecting low energy electrons or dump events:
    1. Increase E-detector discriminator thresholds
    2. Veto dump events using beam timing signal
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