[Halla_running] [Revised Logentry] Follow-up Re: Status update

parkkj at jlab.org parkkj at jlab.org
Wed Apr 29 11:00:02 EDT 2015


Logentry Text:
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<pre>
OK, We have a modified plan (it might work till this Friday).
If you have anything in mind/ or correction, please me or Luke know.
</pre>
<b>Update</b>
<pre>
(1) Taking optics data till 3:00PM 
- current condition: 20uA/Raster OFF/
- RHRS (P0:Q1)=(0.75GeV: 153.36A), LHRS(P0;Q1)=(1.1GeV: 662.11A[which is 80% of nominal])

(2) Call to MCC for a Controlled Access (30min before 3:00PM, actual access will be allowed around 3PM)
- Full survey
- take out sieve slits from LHRS and RHRS
- SBS folk want to change/fix setup 
- I expect overall access time will be less than an hour (However, MCC considers a HARP work during this time...no idea how long will be)

(3) Around 4PM, close Hall (assume all things are completed and clear)
- MCC requires an ion chamber calibration (~2hrs)

(4) If things go well, it is about 6(7)PM
- Carbon hole target to check beam center w/ raster (not sure if this is necessary if we are doing raster target test in next??)
- We make sure if beam go through raster target ( LH2 target is ready to take 20uA beam ! )
- Delta Scan (maybe GMp folks will be here to drive ?) 
--- If Delta Scan goes well, GEM test (Dipangkar/Mark)? / or Delta Scan if things not goes well ?

(5) 7AM next day, we ask for controlled access to change the polarity spectrometer...
</pre>




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