[Halla_running] [New Logentry] Status update

[sanghwa at jlab.org]

Logentry Text:
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Accelerator: 
No beam since yesterday afternoon due to the NL vacuum pump problem. The work at the north linac resumed this morning.

Hall:
We are in controlled access now. 
Planned work during the access:
Bogdan to check LHRS VDC. 
Techs may go down to have a quick look over the vaccum and cryo system.

If anyone else needs to access the hall, please let RC know.

Plan:
Once the beam comes back, we will continue taking production data.
Hall C will be down for their target change for three days to Sunday swing. We had a meeting with experts on how to stabilize the beam without Hall C beam to engage arc2 energy lock, options and plan were discussed. We will have a follow-up meeting once the optics experts gather more information.
Hall B plans to take Moller runs when the beam comes back. Expect IHWP flip.

Note for shift crew:
Compton central rate monitoring guide: https://logbooks.jlab.org/entry/3831650 (wiki: https://prex.jlab.org/wiki/index.php/Compton_DAQ_HOWTO#Compton_Monitoring)

We will have our daily experiment meeting at 3:30.  https://bluejeans.com/25620593


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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/3831888
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