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H4/SPS Daily meetings

September 15

Status: We could only run part of the night, until about 4:00 AM. Beam expected at 8:30 PM (question). CAL calibration with 20 GeV pions completed.
Two configurations suggested by Leon tested as well (with 150 GeV pions).

Program: 10 GeV electrons (limited number of configurations). We will stop tomorrow at 7:00 AM. The area must be cleared by 8:00 AM. 

September 14

Status: Program with 20 GeV protons completed (center of tower 2: 0,45,180 deg +1 position at 90 deg 100k events). Different configurations with 200 GeV electrons used for the FIFO full issue. As of today, we are in "democratc mode", so we have lost the capability to run at the highest energies (>250 GeV). To do list related to the dismantling /shipping. and shipping  Configurations still to do

Program: 10 GeV electrons. Completion of the scan with 20 GeV pions.

Analysis:

of the scan with 20 GeV pions.

Analysis: Dave Smith looked a little at position measurements in CAL single crystals, here. Benoit had a look at the 20 GeV pion run used for CAL calibrations. There is a very good agreement between the reconstructed energy of the MIP peak and that predicted by the MC, demonstrating that pedestals or light yields/gains have not significantly drifted over time.    

September 11

Status:  Smooth operation most of the time, except for 3 hours in the morning. Program of different geometrical configurations completed at 20 GeV. New configurations proposed by Philippe at different energies (200,100,50,20 GeV) to study the crack effects + direct contributions from the beam almost done.

Program: Different electronic configurations to investigate the FIFO full issue. Switch to 20 GeV (10 GeV?) protons.

Analysis:  Luis has presented the first comparison between MC and data for the ACD distributions. The agreement seems reasonable.   

...

 Communications

 - Magnet failure: MNP17 colling system failure at 1AM stopped data taking for several hours but no damage on hardware. Physics restarted after 2 hours w/o silicon tagger for CAL calibrations. Magnet repaired in the morning
- CU cooling system changes: CU/ISC cooling coil in the ISC base plate leaked: it was emptied and is now non available, we will rely on top cooling coil as no intervention is possible; the chiller was moved closer to the ISC to minimize thermalization of coolant with ambient through thermal exchange with the zone air, now chiller more efficient;  fan added to cool XY table motors. Please look at the temperature during your shift

 Online Report

 - DAQ sync studies going on
- CU: Ric investigating phasing errors

 Offline Report

 Francesco:
- pipeline  nicely running
- 1st 1000 evetns in SVAC ntuple duplicated  
Claudia: 
- offline monitor requires script to parse rcReport info and link to MC files (Navid working on that)
- MC and CU cooprdinate systems mismatch (check with Philippe) 
Dave:
- no CAL-HI triggers in last night data as  fhe values were saturated

 Program

 - Complete DAQ sync studies
- perform CU timing studies to optimize TACK (timing/script vs ext trigger manual delay)
- explore beam conditions 
- ACD calibrations (ideally 5gev p, if NA 5gev e) 
- CAL runs with e (Benoit)
- Tagger calibration start on 29 morning

Notes 

 - Fill elogbook
- Take your shifts and launch runs yourself 
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