Wednesday, Mar. 09: DAY Shift
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Previously...
- Production data (Kin48_2)
- Pointing run
- Golden file from production run
Specific mission
- Production run, Kin48_2
- Polarized beam at 10 uA on LH2 15 cm!
- DVCS is running kin_48_2 [here]
- LHRS is partially detuned: [here]
- LHRS=3.996GeV, 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.
Issue
- In this morning (6AM), we had CODA crash and not came back on due to no responding of ROC4 & 5
- Alex went to check crate during escorted access and found remote reset switch was not responding correctly (off but not on) - He needs to access hall during the beam study(2nd part of beam study) to resolve this issue.
- Need a discussion what we want for polarization measurement either Mott measurement or Moller on Friday
MCC meeting in the morning
- Tomorrow beams study, MCC will start to investigate inject first and look at the RF separator will be followed by in order to check the capability of high current 60uA for Hall-A. This is the first part of beam study with highest priority, therefore Hall-A will be remained the lock-up mode.
- As soon as MCC investigation is done, they will switch to their own beam study. At this time, Hall-A can ask for controlled access for our purpose.
- I see Alex need an access (1hr with full survey ??)
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 ~!!
