[clas_members] [EXTERNAL] Urgent Followup: RC Meeting @ 2 PM EDT (in 20 minutes!)

[Lamiaa El Fassi]

Dear Colleagues,

I apologize for the short notice. We were watching the beam tuning to our
FCup with a lower beam current after altering the vertical separator, but
the situation is not much better than last night. Thus, let's meet to
discuss the current beam and run situation.
The meeting will be held in CH ROOM 200C and ZOOM; see its connection info
 in the linked last 24-hour RC summary and the runwiki
<https://wiki.jlab.org/clas12-run/index.php/Run_Group_L#tab=Important_Links >
(its info
is also *copied below for convenience*).

The RC summary can be accessed @ https://logbooks.jlab.org/entry/4377255 

========== *Daily RC Meeting Info *==========
Time: 2:00 p.m. EDT (ONLY TODAY!)
Location: CH Room 200C and online via ZOOM
ZOOM URL link <https://urldefense.proofpoint.com/v2/url?u=https-3A__jlab-2Dorg.zoomgov.com_j_1605705819-23success&d=DwIFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=nhU86tu_xVxwkH2JyhlcQb1jyw6CUjquEwQhqpV3cJI&m=i6CJ5zszMVM9pu8KIHVS7dlZ_nhfP8Q7HE7W8RfsBy99GSwe-Vwud8INcMGSprCC&s=ctdJDFsqbU6o9iL9vLocgJ7bnLokgoEAky7_G1HdyiU&e= > (*including
passcode*)
ZOOM meeting ID: *160 570 5819*
=======================================

Best,

Lamiaa


On Sat, May 17, 2025 at 9:53 AM Lamiaa El Fassi <elfassi at jlab.org> wrote:

> Dear Colleagues,
>
> This is a brief note to let you know that I may call for a meeting later
> today after noon EDT if needed, based on the decision that MCC will make
> once they finish with their attempts to bring Hall B back online. We have
> been down due to a high-level decision since 3 a.m., given they were not
> able to deliver us beam without tripping our halo counters and bringing
> down other halls. These trips are related to the same issue that halls B &
> D have been suffering from related to this 80s beam oscillation. Given
> there is no solution for that yet and to minimize the trip rates, they
> decided to temporarily suspend Hall B overnight as all attempts to give us
> a production beam or even lower at the level of 100 to 150 nA failed. This
> situation was discussed at the 9 a.m. RC/PD meeting this morning, and a
> consensus was reached to dedicate 3 hours of beam tuning to debug an
> alternative solution to keep Hall B alive along Halls A & C. Everyone will
> be informed around noon about the beam situation over the weekend. Stay
> tuned, then!
>
> Best,
>
> Lamiaa
>
> *************************************************************
> **************
> * Assoc. Prof. Lamiaa El Fassi  /  email: le334 at msstate.edu
> * Chair-Elect, Southeastern Section <https://urldefense.proofpoint.com/v2/url?u=https-3A__engage.aps.org_sesaps_home&d=DwIFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=nhU86tu_xVxwkH2JyhlcQb1jyw6CUjquEwQhqpV3cJI&m=i6CJ5zszMVM9pu8KIHVS7dlZ_nhfP8Q7HE7W8RfsBy99GSwe-Vwud8INcMGSprCC&s=rE-Qz2hwSUDeNU_iJeg9O376I2AGPFyAe6sthsyvOY4&e= >, American
> Physical Society <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.aps.org_&d=DwIFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=nhU86tu_xVxwkH2JyhlcQb1jyw6CUjquEwQhqpV3cJI&m=i6CJ5zszMVM9pu8KIHVS7dlZ_nhfP8Q7HE7W8RfsBy99GSwe-Vwud8INcMGSprCC&s=SLx4KmqoWF-ALHkcc2zThuCZPr_enM9Sshe7XmW_C3Y&e= >
> **************************************************************************
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> * Phone: (662) 325-0627    /    Fax:  (662) 325-8898
> * URL: https://urldefense.proofpoint.com/v2/url?u=http-3A__le334.physics.msstate.edu_&d=DwIFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=nhU86tu_xVxwkH2JyhlcQb1jyw6CUjquEwQhqpV3cJI&m=i6CJ5zszMVM9pu8KIHVS7dlZ_nhfP8Q7HE7W8RfsBy99GSwe-Vwud8INcMGSprCC&s=C2zbZ8wRhTxJ838KpaFnPiyUCwHHQyUHiX0nNpjdHA8&e= 
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> * Department of Physics and Astronomy
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> ***************************************************************************
>
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