DØ Run Plan Standard Instructions

Last Updated: 15-Sep-2001 by Leslie Groer

Change Log:

10-Aug-2001 Plan for Magnet Operations
11-Aug-2001 Default version of d0ve changed
14-Aug-2001 Added comment that Beams Division meeting is MWF.
17-Aug-2001 Updated HV instructions.
20-Aug-2001 Removed Carlos Avila and put in Christophe Royon in FPD call list.
22-Aug-2001 Updated HV instructions for all detectors.
23-Aug-2001 Slightly modified Muon HV Instructions.
06-Sep-2001 Updated trigger file instructions
15-Sep-2001 Updated FPD pot motion instructions
27-Sep-2001 Updated Standard Instructions

The Run Plan Standard Instructions can be found at http://www-d0.fnal.gov/runcoor/runplans/runplan_standard.html

The Current Daily Plan can be found at http://www-d0.fnal.gov/runcoor/runplans/runplan.html

Work that causes disruption in data taking during a store or will influence the DAQ at anytime needs to be scheduled ahead of time. Detector, online and trigger groups need to send needs and requests for special running conditions and work to d0runrequests@fnal.gov. The default running condition for a store, unless otherwise specified, is to run with all available readout crates in the global run. Captains are responsible for enforcing the run plans and resolving conflicts. Contact the Run or Commissioning Coordinators if there are unresolved questions.

Requests for access should be sent to d0accessrequests@fnal.gov.

There are new standing instructions for Captains. These involve making sure the Silicon Radiation Monitoring is running, making SAM dataset definitions at the end of a shift and recording the quality of data taken with colliding beam for all subsystems. Also check the Luminosity HV and Monitoring pages for current information.

Detector and Other Specific Instructions

Access Requests

Check the Control Access Request lists in the Control Room and written on the White Board on the South side of the Control Room. Contact the Run Coordinator if there is a chance of access for approval.

Forward Proton Detector

There if a formal DØ/BD plan for how and when the FPD roman pots can be moved. This agreement applies to Roman pot insertion from the period 9/14/2001 to 10/8/2001:
DØ plans to move the Roman pots in to standard positions most stores not earlier than one hour after the beginning of the store. The MCR and CDF will be notified before pot motion and when it is concluded. The initial positions would be A1U=31.5 mm A1D=33.5 P1U=26 P1D=26.5 with A1=A2 and P1=P2 (previously determined as safe positions), with the beampipe axis roughly at 45mm. Pot insertion will be done cautiously while monitoring losses allowing time to react to an unanticipated change in beam orbit. DØ should be notified of any planned changes in beam position. The pots will remain at these positions for most/all of the store retracting the pots prior to the beam being aborted or machine studies.

Towards the end of the second store (t-4 hours) and some subsequent stores we plan to do studies to attempt to define closer operating positions (including initial dipole pot operating positions), since our acceptance is critically dependence on this. We would like to do these before any BD studies, which will require us to have the pots out and would render our default pot positions unreliable. Approval from BD run coordinator will be obtained prior to these studies. An acceptable new position for now is defined as one that does not increase the D0 losses by more than 10% and the pots will be retracted if CDF complains about high losses related to pot motion.

The MCR and CDF must be notified before any pot motion so they can watch for losses. FPD shifters will be present for all pot motion and will be going to 24/7 shifts. The FPD pager number is (630) 266-2635 if there are any questions.

High Voltage Instructions (Detector and Luminosity)

Shift Captains are responsible for communicating to all detector shifters about the begining of a store (when scraping is completed). The Shift Captain should specifically instruct detector shifters (for now muon and SMT) to set their HV to 100%. Data taking (including adjustment of prescales) should be started after HV is at 100% for all detectors in trigger/readout.

A few minutes before the store is terminated (D0 is supposed to receive a call from the MCR about planned terminations) Captain has to instruct DAQ expert to stop global running and ask detector experts to set their detector HV to "Standby". To avoid confusion, refer to the table below for which systems need to regulate their HV depending on beam conditions.

Luminosity counter phototubes are very sensitive to the presence of the solenoidal magnetic field. Whenever current in the solenoid is changed (turning solenoid ON, OFF or changing polarity) it is the responsibility of the Shift Captain to set the HV on the luminosity counters according to specific instructions outlined below by Gregor Geurkov. Note that the Luminosity HV stays ON at all times, even during beam studies, but the setting of the HV to lower or higher percentages depends on the solenoidal field being off or on.
Setting Luminosity HV
How to tell if the Luminosity information is updating in ACNET

Beam conditions
Detector Shifter Collissions Injection Beam studies No Beam
(Calibrations)
SMT SMT shifter 100% OFF OFF 100%
CAL CAL shifter 100% at all times
ICD CAL shifter 100% at all times
MUON MUON shifter 100% Standby Standby Standby
LUM Captain 50% at all times with solenoid off
70% at all times with solenoid on)
CFT CFT shifter --- --- --- ---

Forward Muon

There are two folders of muon shifter's instructions in the control room with detailed "step-by-step" instructions on how to run the system, check lists, Examine "reference plots" as well as call lists. There are experts (both pixels and MDTs) who will be watching systems operation daily and to solve problems, if any. They carry forward muon system cell phone and pagers. They are Igor Vasilyev (x6435) for pixels and Basar Sabirov (x2989, (630) 399-2367 (cell), x3438 (home)) for MDTs.

Magnets

Before the solenoid or toriod are turned on or off, MCR must be notified.

Contact the Operations Technicians in DAB to ramp the magnets. The solenoid takes about 20 minutes to discharge and the toriod about 10 minutes. The shift captain should check that these are interlocked after they are ramped down.

Plan for Magnet Operations from Dmitri Denisov 10-Aug-2001

  1. The Shift Captain is responsible for providing D0 Ops Shifter with instructions on turning D0 magnets ON/OFF or changing polarities.
  2. Any changes in magnet currents should occur when there is no store in the Tevatron. The Main Control Room should be notified by the Shift Captain at least 10 minutes before any changes in D0 magnet operating conditions.
  3. The polarity of the magnets is to be changed every week. Changes are to be done before the first store that starts after 00:00 o'clock Monday, and will be done independent of the amount of data collected during previous week(s) or any other conditions.
  4. Until the 2001 October shutdown the sequence of polarities changes is: (R - Reverse, F - Forward)
    Week of08/0508/1208/1908/2609/0209/0909/1609/2309/3010/7
    SolenoidFFRRFRRFFF
    ToroidFRRFFFRRFR
  5. Special modes of operation for the magnets (no field for detector studies, etc.) will be described on a case by case basis in the daily run plan. As soon as such studies are over, we should return to the sequence outlined in step 4. above.
  6. In order to reduce operating expenses, the solenoid and toroids should be powered OFF if it is known that collisions are not expected within the next 24 hours. They should be turned ON at least 1 hour before the expected shot setup.
  7. During magnet current changes, follow the procedures outlined in the run plan for operating luminosity counters high voltage. No other detectors are known to be affected by magnetic field changes.

DAQ

Be aware that we are limited to a total of 32 triggers bits at the moment (0-31). If takers are configured they reserve bits and the taker might need to be freed before the global trigger can be defined.

Standing Instructions and Shift Tasks

Colliding Beam

The default running condition is to take data with the global trigger list (see the current run plan for details) with all available crates and set prescales to get the maximum rate possible without killing the DAQ. See the details in the trigger .xml file from the Trigger Meisters about tuning rates.

No Collisions

Allow detector experts to work on commissioning activities, under the Shift Captain's approval. All experts must return their systems to working order before they complete their work.
Note: If there are severe conflicts with the use of the DAQ system because of instabilities and people starting/stopping runs, issuing SCL inits, etc then it is the Shift Captain's duty to determine priorities and to enforce them. Contact the Commissioning Coordinators if need be.

No Beam in the Tevatron

If there is no beam, then calibration runs should be conducted by the various subdetector shifters. If no beam is expected for more than one hour, contact the detector subgroup experts if no shifter is present.

As Quiet Time is fairly precious at the moment, and many detectors need to calibrate their systems with no beam, the usual "free-for-all" has to be severely curtailed. The Shift Captain and the Commissioning/Run Coordinators will determine priorities for various subsystems to have exclusive use of the DAQ system in order to complete calibration runs without interference. If there are unresolved conflicts, contact the Commissioning Coordinators (Leslie or Michael).

General Shifter Tasks

The Day Shift Captain must attend the Beams Division 9am Meeting in Curia II in Wilson Hall (2nd floor, West side) on Mondays, Wednesdays and Fridays. The meeting normally lasts about 20 minutes. The Run and Commissioning Coordinators normally attend and present the report, but the Shift Captain should do so if none are in attendance.

The Captain should make sure that the Silicon Radiation Monitoring is running. See the online instructions for details.
(http://www-d0.fnal.gov/~naeema/radmon/shift/procedure.htm)

At the end of a shift, Captains should follow Wyatt Merritt and Heidi Schellman's instructions on how to define a SAM dataset. The definition should define all the runs that are deemed good from the store that should be run through reco.

The default event display d0ve should be run at all times for colliding data
start_daq d0ve

The ROOT version global_monitor examine should be run as well on d0ol04 (Captain's console), as this feeds histograms to the web. See the Captain's guide for details. There have been problems running this examine, but it does work if the instructions are followed closely.

Run Examines and Event displays at all times. In particular:

Examine Shifter Node
Vertex Examine Captain d0ol04
Global Examine Captain d0ol04
Event Display (d0ve) DAQ shifter d0ol10
Calorimeter Examine Calorimeter shifter d0ol06
Muon Examine Muon shifter d0ol09
SMT Examine SMT shifter d0ol05
CFT Examine CFT shifter
if present		 d0ol08

COOR records the begin and end of runs along with the crate configurations. DAQ shifters must still enter the relevant information in the taker pop-up windows. For details, see the message from Alan Stone. Shifters should take note of the following for each trigger: 

 
   Trig Name    Fired rate   AND/OR rate    Prescale

Captains should summarize the runs taken with colliding beam and indicate their quality: 

  
 start  end  run#  trigger  #events  toroid/solenoid  crate list  data quality (good/bad/unknown)  Comments
                                      (off,for,rev)                   (CAL,CFT,CPS,MUO,SMT)
These summaries should be put into the shift summary for distribution to d0shifters and posted to D0NEWS in the OPERATIONS folder.

At the begin of stores, the store number should be entered into COOR via

setup d0online
store_begin number.
Similarly, the end of store command is
store_end
At the beginning of a store, Captains should record all the information from Channel 13 (the Beam's Status page) in the elog.

Note: If you need to make changes in trigger configurations, contact the Trigger Meisters (Elizabeth Gallas and Levan Babukhadia).

Contact Information

    Office Pager Cell Home
Run Coordinator Dmitri Denisov x3851 (630) 218-4498 (630) 879-6725
Commissioning Coordinator Leslie Groer x5587 (630) 218-8421 (630) 399-0024 (630) 208-8151
Commissioning Coordinator Michael Begel x2263 (630) 218-4836 (630) 406-6061
DAQ On-call Troubleshooter   (630) 218-4801    
Send comments/corrections to Leslie Groer or Michael Begel
Last modified: Tue Oct 22 05:44:33 CDT 2002