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Flor de maria Blaszczyk, 03/22/2016 03:26 PM

1 104 Jennifer Raaf
!https:/redmine/attachments/download/17373/Lariat_Logo_256.jpg!  
2 104 Jennifer Raaf
 
3 218 Jason St. John
ROC West x5413
4 1 William Badgett
MCenter Control Room (MC-CR) x3726 or x8871
5 117 Jennifer Raaf
* Call the Main Control Room (x3721) at the start and at the end of shift. This is required, and pleasant.
6 69 Jason St. John
* If the beam goes away for more than a few spills, look for Accelerator Alarms in ACNET (a default window). If the problem persists a few minutes, and you see nothing about it in the MCR elog, (or you just really want to find out more), call the MCR.  They're friendly, though they may be super-busy.
7 25 William Badgett
8 150 Jason St. John
{{toc}}
9 63 Jason St. John
10 204 Luke Batten
11 147 Jason St. John
h1. Shifter Stuff
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13 207 Luke Batten
* [[Before your first shift at LArIAT]]
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* [[LArIAT Run 2 Shifter Instructions]] (February 2016)
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** [[Run Plan]]
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** "LArIAT Expert Call List":http://lariat.fnal.gov/internal/internal.html  (User is "lariat", password same as docdb)
17 1 William Badgett
18 171 Jason St. John
h2. Link summary ( [[quick start]] )
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20 197 Jason St. John
* "Accelerator Schedule":http://www-ad.fnal.gov/ops/schedule.html  (power outages, etc)
21 215 Luke Batten
* "LArIAT e-Log":http://dbweb0.fnal.gov:8080/ECL/lariat/E/index  For making/ending access, starting/ending shifts.
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* [[LArIAT DAQ Instructions]] (February 2016)
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* "LArIAT Run Status Webpage":http://nusoft.fnal.gov/lariat/run.html
24 196 Ryan Linehan
* "LArIAT Run Summary Webpage":http://lariat-wbm.fnal.gov/wbm/servlet/LariatRunSummary
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* "LArIAT Online DQM":http://lariat-dqm.fnal.gov (works with VPN or VNC or on-site only, for now)
26 164 Johnny Ho
* How to use the [[event viewers]]
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* How to make [[DQM plots]] (may be outdated)
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* "Synoptic":https://cdcvs.fnal.gov/redmine/projects/lariat-online/wiki/Using_Synoptic_for_monitoring
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* "Beam monitoring(ACNET directly)":https://redmine.fnal.gov/redmine/projects/lariat-online/wiki/Using_ACNET_for_monitoring?parent=Wiki
30 1 William Badgett
* "Accelerator Operations Elog":https://www-bd.fnal.gov/Elog/?logNames=Operations
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* "MC7 WebCam":http://131.225.176.26/
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33 151 Jason St. John
h3. Important knowledge
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* "List of MC7 ACNET devices":https://redmine.fnal.gov/redmine/projects/lariat-online/wiki/MC7_in_ACNET
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* [[MC-7 Enclosure Layout]]
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* "In case the beam TVs are off":http://www-bd.fnal.gov/notifyservlet/www?project=&refresh=on&infolinks=top
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* [[The LArIAT supercycle]] _How DAQ operations relate to the main injector supercycle_ 
39 151 Jason St. John
* "Hardware-Connections-and-Configurations":https://redmine.fnal.gov/redmine/projects/lariat-online/wiki/Wiki#Hardware-Connections-and-Configurations
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* "Electronic Hardware Documentation":https://redmine.fnal.gov/redmine/projects/lariat-online/wiki/Wiki#Electronic-Hardware-Documentation
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42 149 Jason St. John
h3. Obsolete links
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44 202 Jason St. John
* [[LArIAT Run 1 Shifter Instructions]] (June 2015)
45 149 Jason St. John
* -LArIAT Engineering Run (Aug 2014) [[How to Run the Lariat Data Acquisition]]- (OBSOLETE)
46 1 William Badgett
* -"Shifter Instructions":https://docs.google.com/document/d/1mlN_UIOCqwhe0cFiU7mRc3-lxDZhY-4TmIy23rOzILI/pub August 2014- (Some obsolete information)
47 164 Johnny Ho
* -How to make [[Lariat DAQ Plots]]- (OBSOLETE)
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h1. Troubleshooting 
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51 152 Jason St. John
Any time day or night, please call experts if you are in need of help and the answer is not provided below.
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h2. *Trouble getting started*
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55 205 Luke Batten
* If you cannot ssh to FTBFLX machines: Get a kerberos ticket for yourself: @kinit <yourKerberosPrincipal>@, then ssh ftbf_user@ftbflx18 (or ssh ftbf_user@ftbflx15 or ssh ftbf_user@ftbf-cr-03).
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* If your Kerberos username and password are good, but you can't log on to FTBFLX[NN] machines:  Have someone who CAN log into those machines check that your kerberos principal appears in @~ftbf_user/.k5login@ in the LArIAT section (email the Run Co-ordinator at stjohn@fnal.gov). 
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* The same ssh errors may also apply to computers at ROC West. Troubleshoot using the above methods.
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59 152 Jason St. John
h2. *Trigger and DAQ system*
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61 188 Jason St. John
When the DAQ crashes, please post the relevant information to [[DAQerrors]] for experts to study.
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h3. Common failures:
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* DAQ fails with @ERROR: ReadRegisgter ACQUISITION_STATUS CAEN_DGTZ_CommError BoardId 0@  wait 2 minutes, then try to start again.
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** Try issuing the command @lariatReset 0 1@ waiting more then 5 seconds, and trying again.
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This command is appropriate when one sees any type of "CAEN_DGTZ" error.  This command will NOT help the persistent ports error.
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* DAQ fails with @Found persistent communication port still open@
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** Wait 8 minutes for the ports to clear, then try again.
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* DAQ fails with "An exception occurred when trying to send a message to ..." 
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** Check that the terminal you are running the DAQ from is indeed lariat-daq00 (or a screen within it).  Output from @klist@ should show the default principal as "lariat/lariat/lariat-cr-02.fnal.gov@FNAL.GOV" or similar if running from a screen off lariat-daq00 from the ROC-West station.
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h3. Other failures: 
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75 1 William Badgett
* If the DAQ is having trouble talking to the crates, try issuing the command @lariatReset 0 1@ waiting more then 5 seconds, and trying again.
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This command is appropriate when one sees any type of "CAEN_DGTZ" error.  This command will NOT help the persistent ports error.
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* *No triggers at all* If the trigger crate has been power cycled and the V1495 is not emitting triggers: [[Reset1495]]
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* *Run Status page not updating* 
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** Try refreshing the page. 
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** If the ACNET node has gone down (as in a power loss) may need to re-start the tomcat servlet: @ssh tomcat@lariat-wbm.fnal.gov@, then @kitty@.  (Yep, "kitty.")
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h2. *Wire Chambers*
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Nominal Voltages:
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|_. WC1 | -2425 |
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|_. WC2 | -2400 |
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|_. WC3 | -2425 |
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|_. WC4 | -2450 |
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* If the wire chambers HV trips: "instructions for controls via Synoptic":https://cdcvs.fnal.gov/redmine/projects/lariat-online/wiki/Using_Synoptic_for_monitoring#section-10
91 135 Jason St. John
* If the wire chambers are acting strangely: "remote power cycling instructions":https://redmine.fnal.gov/redmine/projects/lariat-online/wiki/Communicating_with_the_wire_chambers including mini-DAQ and telnet interface.
92 83 Jason St. John
* If the wire chamber system is skipping spill numbers, it may be a high trigger rate (> 30 k per spill).  The wire chamber controller may still be reading out the hits from the last spill.
93 1 William Badgett
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h2. *High voltage for the wire chambers, TPC wireplane bias, cryo PMTs*
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"Detailed instructions for controls via Synoptic":https://cdcvs.fnal.gov/redmine/projects/lariat-online/wiki/Using_Synoptic_for_monitoring#section-10
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*ONLY IF SYNOPTIC DOESN'T WORK* "Instructions for controls via ACNET":https://cdcvs.fnal.gov/redmine/projects/lariat-online/wiki/Using_ACNET_to_power_up_the_power_supplies
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* The readback voltage doesn't make any sense, is of the wrong polarity and/or is way above the nominal value, but just for a fraction of time.
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This is most likely just a glitch in the readout, please ignore if it happens once or twice. If it happens too frequently, set voltage to 0, turn off the power supply and report it. 
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* The readback voltage doesn't make any sense, is of the wrong polarity and is way above the nominal value, and the value is stable~ish (you might see small fluctuations over time)
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This is a typical symptom of a bad power supply. Try to set it back to 0, turn it off and disconnect the SHV cable. If the readout values remain the same, it confirms there is a hardware problem. Please contact Brian Fellenz for repairs if we don't have a spare for that unit.
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FYI, the power supplies have a given voltage rating and cannot physically deliver voltages beyond that range. Also, their polarities cannot be swapped so if you see the wrong sign on the readout ie a positive voltage on a negative power supply or vice versa, then you can be sure the unit is broken or you have a problem somewhere else in the system.
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- Bias voltage rating: - 500 V for the shield and induction planes, + 500 V for the collection plane.
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- ELT and Hamamatsu PMTs: +2000 V
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- All of the other units: -2000 V
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* Something went wrong during a ramp, I need to turn off the supply!
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There is an interlock that prevents you from using the normal fast controls on the power supply when a ramp is on-going. First, *stop the ramp by clicking on the STOP button*. This will stop the ramp and clear the interlock. If you need to go back to 0 quickly, use the fast controls to set the voltage to 0 and *don't forget to turn off the supply!*
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*Even if the controls appear not to respond, set the voltage to 0 and turn the supply off*. Contact Charlie Briegel first and describe the problem in detail. If you can and if it's safe, disconnect the SHV cable from the power supply. If the readback values remain the same, then the power supply is broken.
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* *ACNET controls expert: Charles (Charlie) Briegel, x4510 briegel@fnal.gov*  
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* *VME power supplies repairs / replacements: Brian Fellenz, x2512 fellenz@fnal.gov*
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119 225 Roberto Acciarri
h2. *Event Viewer*
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* If the event viewer stops cycling through the events and the terminal from which it is running shows a list of lines saying something like _"event XX in file, but on event 0"_ with _XX_ any number,
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** _*ctrl+z*_ 
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** _*ps -def*_ to look at the processes list. Look for the job ID of the process _"python /lariat/app/users/EventViewer/..."_ 
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** _*kill -9 JobID*_ to kill the event viewer
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** open a new event viewer
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* If the problem persists and/or become more frequent, exit the session you are in and try to connect from a different gpvm machine 
128 181 Jason St. John
129 181 Jason St. John
h2. Power Cycle the ASICs (TPC Wire Noise)
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* Anecdotal evidence has shown that analog noise on the TPC wire readout channels can be 
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alleviated by power cycling the TPC electronics: ASICs and Warm Receiver/Drivers
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* You can remotely power cycle the TPC electronics.  Log onto lariat-gateway00.fnal.gov with X-forwarding enabled, type "firefox", and go to http://lariat-pdu02.fnal.gov.  Usename "ftbf" (password posted on whiteboard in MC7).  Choose the *CYCLE* option, which will automatically give a 60 
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second powerless interlude.
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* Further important informations can be found on the white board in MC-CR.
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* This mechanism is controlled by a smart power distribution unit (PDU) located under the 
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TPC electronics power supply near the cryostat in the enclosure.   Due to electrical safety 
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rules you must *NOT* use any of the other outlets on this PDU.  Do *NOT* remove the protective 
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outlet covers at any time.
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!https://redmine.fnal.gov/redmine/attachments/download/25467/lariat-pdu02-cycle.png!
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h2. Recover from a LAr level interlock
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Assuming the LAr Level dropped low enough to trip off the TPC Cathode power supply, and maybe you even powered down the PMTs.
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# Be sure HV is set to zero for these: Cathode Drift, Wire Bias, cryo-PMTs
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How to control the [[Drift HV]]
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# Power down the ASICs. (They should be off when TPC voltages change.)
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# Bring up the Cathode
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# Bring up the Wire Bias
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# Bring up the ASICs
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# Bring up the PMTs
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h2. Synoptic troubleshooting
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%{color:red}"Synoptic Troubleshooting":https://cdcvs.fnal.gov/redmine/projects/lariat-online/wiki/Using_Synoptic_for_monitoring#Troubleshooting%
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161 68 Michael Kordosky
h1. Hardware Connections and Configurations
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163 141 William Badgett
* [[TPC Channel Mapping]]
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* [[Non-TPC Detectors]] *Naming and numbering in MC7*
165 133 Jason St. John
* "Cable Patch Panel Spreadsheet":http://goo.gl/JXiH8Y
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* [[Connections on the Control Room Patch Panel]]
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* [[Logical inputs to the CAEN V1740]]
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* [[Connections into the WUT TDC]]
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* [[Connections into the V1751 Digitizer]]
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* [[Trigger inputs|Connections in/out of the V1495 Trigger]]
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* [[Logic pulse widths and discriminator thresholds]]
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* [[WUT configuration]]
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* [[Timing of ACnet TCLK Events]]
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* The [[Teensy]] LAr ASIC controller's configuration
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177 138 Roberto Acciarri
* [[Punch Through counters voltages and rates ]]
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179 102 Jason St. John
h1. Electronic Hardware Documentation
180 45 Michael Kordosky
181 51 Jason St. John
* Link to LArIAT eLog http://dbweb0.fnal.gov/ECL/lariat
182 51 Jason St. John
* [[LariatOnlineGit]] Accessing the LArIAT Online GIT repository
183 98 Brian Rebel
* [[Building LArIATOnline with CMake]]
184 44 Michael Kordosky
185 51 Jason St. John
* [[LArIAT TPC Readout Parameters]]
186 185 William Badgett
* [[LArASIC Preamp Documentation from BNL]]
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* [[LArIAT DAQ Commercial Products]] Technical Documentation and Firmware Files
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* [[LArIAT CAEN Products]] Technical Documentation and Firmware Files
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* Test Beam Wire Chamber Sten Hensen's [[TDC Readout Documentation]]
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* WUT Wave Union TDC: [[Jinyuan's TDC Documentation]]
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* [[v1495 notes]] Notes and working area for the V1495 and V2718
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* [[A3818 PCI optical controller]] links
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* [[DAQ Configuration]] settings, parameters, starting a run
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* [[Raw Data Format and Readout Source code]]
196 100 John Freeman
* [[All things lariat-artdaq]] (UPDATED 11/5/14)
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* [[Interpreting Wire Chamber TDC Data]]
198 36 Michael Kordosky
199 54 Jason St. John
* [[LArIAT Test Stand]] Photographs
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201 72 Michael Kordosky
h1. Diagnostic and Control Software
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_Test programs in the_ lariat-online/daq/src _directory_
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* [[DumpDigitizerData]]
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* [[SummarizeDAQOutput]]
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* [[Reset1495]]
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* [[ScalarReadout]]
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* [[Data_quality_monitoring_module]]
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211 139 William Badgett
* CAEN's [[WaveDump]] utility
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213 75 Jason St. John
h1. Examining the WC mini DAQ ASCII data
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The Processor makes TTrees from the ASCII files saved by @mc7-daq.py@
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[[WC MiniDAQ Data Processor]]
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h1. Data Files from the year 2013
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Data files for various beam conditions can be found in the [[DataFiles]] page.
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h1. Meetings
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* [[Connecting to LArIAT ReadyTalk]]
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h1. Miscellaneous
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* The control room shifter computer (MCenter) can be logged into as ftbf_user@ftbflx18.fnal.gov after passing through lariat-gateway.fnal.gov
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* [[Proxy using SSH tunnel]]