July 21
estimated time 06:00-14:00 14:00-22:00 22:00-06:00
MOM P. Hodgson P. Hodgson P. Hodgson
Lead Shifter Jan Celeste Paolo
Shifter 1 Tanaz Pavel Dejan
BLOC Celeste Celeste Joe
Aim On Call On Call On Call / Half-field run / TOF Calibration
Beam? Yes(?) Yes(?) Yes(?)
Additional Personnel

Shift plans

Half Field Run

If a stable magnetic field is generated expect to take data
  • DS is required
  • Propose to take data using a 6-140+M0 beam.
    • Check rate at setup time
    • TOF1 trigger
    • TOF2 trigger rate should be > 5 per spill
    • 300k TOF1 triggers
  • Reference run is a potential fall back position if the rate is too low.

TOF Calibration

If there are not Tracker timing instructions by run time and no field take TOF calibration data for the duration of the midnight shift instead.

Number of pulses Beamloss Particle Species p at Tgt p@D1 p@D2 Proton Absorber Q1 Q2 Q3 D1 DS D2 Q4 Q5 Q6 Q7 Q8 Q9 Similar Run(s)
# V mm A A A A A A A A A A A A A A A A DAQ run #
25000 min 1 Positron 300.0 259.7 249.58 29 56.35 102.7 62.65 195.72 --- 98.59 163.16 218.79 114.14 83.40 125.70 80.06 1678

What We Haven't Done

  1. Tracker Timing Studies
    • Ed Overton used available time for Tracker calibration.
    • Has produced a script to step through the required settings (see end of this run plan)

Run Time Preparedness.

  • Downstream PID Detectors (EMR/KL/TOF)
    • to be moved to final positions (July 16)
    • HV to be turned on and DAQ reconfigured (July 16?)
    • Detectors reconnected (July 15)
  • Upstream PID Detectors (Ckov/TOFs)
    • in final positions -- Done (July 4)
  • Trackers
    • Helium on
      • downstream tracker -- Done but not maintained. (July 17)
      • Upstream tracker still has a leak -- to be fixed in August
    • Repair dead channels.
  • Run Control
    • CDB interface
      • Need to improve stability of run control - remove need for IOC restart
    • CDB beam line control
      • Starting beam line current from zero doesn't work due to polarimeter -- Fixed (July 12)
  • Beam line control
    • "Set all to 0" button has not operated in a predictable manner -- Corrected. (July 12)
  • Beam line
    • Decay Solenoid filled and ramped (July 22)
    • Correcting limits on the alarm handler.
      • Likely to wait for September run.


  • Reminder: The end of run comment must be filled for the run to register as completed on CDB. Ensure that the enter key is struck while in the end comment dialogue box at the end of every run.

Temporary Run Control Instructions

  • Restart Run Control after every run
  • Currently using pro branch in MLCR.
  • If Run Control was no restarted and it crashes the terminal, type "reset" (no quotes) to regain control, then restart Run Control. Do not log in/out
  • If there is doubt contact Pierrick Hanlet or Chris Heidt

Phone details for 6pm daily meeting

Phone access : ReadyTalk number

US 866-740-1260

UK 0800-496-0576

Swiss 0800-70-53-51

Italy 800182592

Access Code: 2155402

Tracker Timing studies

Please use the following standard pion reference beam (and check this is the std. reference beam):

Particle Species p at Tgt p@D1 p@D2 Proton Absorber Q1 Q2 Q3 D1 DS D2 Q4 Q5 Q6 Q7 Q8 Q9 Similar Run(s)
mm A A A A A A A A A A A A A A A A DAQ run #
Pion Reference ? ? ? 29 57.8 105.7 64.5 202.8 --- 176.9 237.1 157.2 157.6 238.5 125.70 203.7 7257

I would like the following runs:
Target is 25K Triggers in TOF1 per run...

Run Type Timing FileName Efficiency Alive Window Alive Window Est. Run #
(Trig/Request) Delay (ns) Width (ns) Spills
Nominal Nominal.cfg 0.8 130 110 (116.4 meas.) 1400 (20min) ??
Section1 Timing_section1.cfg <0.2 130 30 (35 meas.) 5600 (2hr) ??
Section2 Timing_section2.cfg >0.2 130 30 (30 meas.) 5600 (2hr) ??
Section3 Timing_section3.cfg >0.2 130 30 (35 meas.) 5600 (2hr) ??
Section4 Timing_section4.cfg <0.2 130 30 (35 meas.) 5600 (2hr) ??


Cd into directory on acq machine:

ssh miceacq16
cd ~/tracker/gate_generator_config/

For each setting do the following Run:

./ timing_studies/FileName
./ timing_studies/Timing_section1.cfg

Once complete run to restore to normal beam settings:

./ BeamTiming_TOF1.cfg

Notes: In run 7257 830 spills collected. Assume ~1 noise hit in TOF2/TOF1 per spill = 830 noise hits
TOF2/TOF1 scalars: 4835/19737 = 25%
TOF2/TOF1 = 20%
23 Triggers per spill.

Would like ~5K hits in TOF2 for each setting. => 25K Particle Triggers in TOF1.
Could Halve these values if needed...

Updated by Franchini, Paolo almost 9 years ago ยท 10 revisions