Difference between revisions of "Tuesday, Mar. 08: OWL Shift"

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* beam locks: no position lock, energy lock in Arc 2: [[https://logbooks.jlab.org/entry/3385399 here]]
 
* beam locks: no position lock, energy lock in Arc 2: [[https://logbooks.jlab.org/entry/3385399 here]]
* the straw chambers in the LHRS are off
+
* the straw chambers in the LHRS are ON !
 
* DVCS daq  configuration is [[https://logbooks.jlab.org/entry/3385461 this one]], we are measuring about 2% DT at 15uA.
 
* DVCS daq  configuration is [[https://logbooks.jlab.org/entry/3385461 this one]], we are measuring about 2% DT at 15uA.
 
* Take Compton run every 2 h
 
* Take Compton run every 2 h

Revision as of 18:08, 7 March 2016

Go back to Daily Run Plan Daily Run Plans


Previously...

  • Production data (Kin48_3)



Specific mission

      • Continue production mode ***

last update Mar 06

  • Polarized beam at 15 uA on LH2 15 cm through Compton chicane !
  • DVCS is running kin_48_3 [here], as off 03-06 5 pm we have accumulate 2.14 C out of our goal of 4.7 C.
  • LHRS is partially detuned: [here]
- LHRS=2.92GeV, Q1/Q2/Q3=1916.640(readout:1900)/1600/1600 (Q1 regul.OFF)
- PreScaleR : PS1=PS2=PS3=1, && PS8=200
- PreScaleL : PS9 =1, + DVCS config.
  • beam locks: no position lock, energy lock in Arc 2: [here]
  • the straw chambers in the LHRS are ON !
  • DVCS daq configuration is [this one], we are measuring about 2% DT at 15uA.
  • Take Compton run every 2 h


      • Preparation Elastic measurement
  • 6:30AM Call MCC for Controlled Access
  • 7:30AM Change polarity and angle of LHRS (detail info(angles) will be sent to Jessi by email)
  • 8:30AM-1:30PM various DVCS angle calibrations with change Calo. distance(2.5/6/2m)(required multiple escorted access)
  • 2:00PM Change polarity back and angle LHRS for production
  • 3:00PM Resume production (15uA, LH2)
    • After Alex's work, Compton laser will be turned OFF !
  • Polarized beam at 15 uA on LH2 15 cm! (out of chicane ? )
  • DVCS is running kin_48_3 [here], as off 03-06 5 pm we have accumulate 2.14 C out of our goal of 4.7 C.
  • LHRS is partially detuned: [here]
- LHRS=2.92GeV, Q1/Q2/Q3=1916.640(readout:1900)/1600/1600 (Q1 regul.OFF)
- PreScaleR : PS1=PS2=PS3=1, && PS8=200
- PreScaleL : PS9 =1, + DVCS config.
  • beam locks: no position lock, energy lock in Arc 2: [here]
  • DVCS daq configuration is [this one], we are measuring about 2% DT at 15uA.







BPM/Spot++ Check

  • After beam lost for considerable time (like beam study, pass change,...)
  • Ask MCC to run 5uA wth carbon hole target and make sure you can see the hole through Spot++




Please check more info on the white board in the Counting House ~!!