[Halla_running] [New Logentry] Status update

sanghwa at jlab.org sanghwa at jlab.org
Tue Feb 12 12:30:04 EST 2019


Logentry Text:
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Yesterday around 7 pm, we started having problems with iochla5. Right arm LHe level for dipole and Q3 started going off the safe zone and eventually had to bring RHRS magnets down to avoid ESR crash. Jack, Heidi and Jessie managed to do recovery after several attempts and effort (https://logbooks.jlab.org/entry/3651450).
As we were closing the hall, RHRS dipole was still ramping down. Took ~5-6 hours to ramp down. RHRS dipole finally brought back up around the end of owl shift. 

We are finishing up data taking for the RHRS optics. After that, we will have a controlled access for the left arm polarity change around after lunch. 

No right arm polarity change today. LHRS magnets ramped down already.

After the polarity change, we will do SciFi test, LHRS optics data taking. Further plan for today to be developed and will be sent out.

We will meet at 3:30 for a daily meeting at the usual place (2nd floor counting house)

o join the Meeting: https://bluejeans.com/256205934

To join via Room System: Video Conferencing System: bjn.vc -or-199.48.152.152 Meeting ID : 256205934

To join via phone : 1) Dial:

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2) Enter Conference ID : 256205934




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This is a plain text email for clients that cannot display HTML.  The full logentry can be found online at https://logbooks.jlab.org/entry/3651755
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