[clas_members] RG-L RC Meeting at 11:30 ET

sangbaek sangbaek at jlab.org
Tue Apr 15 09:48:40 EDT 2025


Dear All,

We'll have an RC meeting at 11:30 am ET on zoom or in the counting 
house.
The RF recovery is scheduled for tomorrow 8 am, followed by the beam 
studies.
We expect the beam back by 5–6 pm.
Please let Whit (RC 4/16–23) and Daniel (PDL) know if you need the 
controlled access.

RC summary: https://logbooks.jlab.org/entry/4356211
Zoom link: https://jlab-org.zoomgov.com/j/1605705819#success

Best regards,
Sangbaek

On 2025-04-14 11:21, sangbaek wrote:
> Dear All,
> 
> Sorry for the short notice. We will have the RC meeting in 10 minutes
> in the counting house or on zoom.
> 
> Run summary:
> https://docs.google.com/spreadsheets/d/1agmQxeRM4yfs2rYxqdOVIxHVk507xEPMxLX2FDcEukg/edit?gid=0#gid=0
> RC summary: https://logbooks.jlab.org/entry/4353649
> Zoom link: https://jlab-org.zoomgov.com/j/1605705819#success
> 
> Best regards,
> Sangbaek
> 
> 
> On 2025-04-13 10:00, sangbaek wrote:
>> Dear All,
>> 
>> We'll have an RC meeting at 11:30 am ET on zoom or in the counting 
>> house.
>> 
>> Commissioning runs:
>> https://docs.google.com/spreadsheets/d/1agmQxeRM4yfs2rYxqdOVIxHVk507xEPMxLX2FDcEukg/edit?gid=0#gid=0
>> Zoom link: https://jlab-org.zoomgov.com/j/1605705819#success
>> 
>> We successfully took the commissioning data at 200 nA, 10.7 GeV with
>> the He-4 target, thanks to the shift takers and all the experts.
>> I hope we can increase the beam current to the production level (250
>> nA, 500 nA) after we discuss the outstanding action items during the
>> meeting.
>> 
>> Best regards,
>> Sangbaek
>> 
>> On 2025-04-12 08:43, sangbaek wrote:
>>> Dear All,
>>> 
>>> We'll have a short RC meeting at 11:30 am ET on zoom or in the
>>> counting house to discuss the short term schedule only.
>>> 
>>> Zoom link: https://jlab-org.zoomgov.com/j/1605705819#success
>>> Short term schedule:
>>> https://wiki.jlab.org/clas12-run/index.php/Run_Group_L#tab=Short_Term_Schedule
>>> 
>>> The MCC was able to send us the 5th pass beam since the swing shift,
>>> but couldn't yet establish the nominal beam position and width.
>>> We were just told that they'll send a better beam within 30 minutes.
>>> 
>>> Best regards,
>>> Sangbaek
>>> 
>>> On 2025-04-11 09:19, sangbaek wrote:
>>>> Dear All,
>>>> 
>>>> We will have the RC meeting at 11:30 am on zoom or in the counting
>>>> house. See the link below.
>>>> Thanks to Morgan's work, we changed the bottle from the hydrogen to
>>>> deuterium timely and took the commissioning data with deuterium 
>>>> target
>>>> overnight at 2.2 GeV.
>>>> We're ready to move on to the 5th pass beam after the MCC's RF
>>>> recovery (happening now).
>>>> We need detector experts' attention to the commissioning with 5th 
>>>> pass
>>>> beam over the weekend.
>>>> Also, please let me (RC) and Daniel (PDL) know if you need to go 
>>>> down the hall.
>>>> 
>>>> RC Summary: https://logbooks.jlab.org/entry/4352601/
>>>> Zoom link: https://jlab-org.zoomgov.com/j/1605705819#success
>>>> Commissioning runs:
>>>> https://docs.google.com/spreadsheets/d/1agmQxeRM4yfs2rYxqdOVIxHVk507xEPMxLX2FDcEukg/edit?gid=0#gid=0
>>>> 
>>>> Best regards,
>>>> Sangbaek
>>>> 
>>>> On 2025-04-10 07:22, sangbaek wrote:
>>>>> Dear All,
>>>>> 
>>>>> We will have the RC meeting at 11:30 am on zoom or in the counting
>>>>> house. See the link below.
>>>>> We took the commissioning data with hydrogen target overnight.
>>>>> 
>>>>> RC Summary: https://logbooks.jlab.org/entry/4352122
>>>>> Zoom link: https://jlab-org.zoomgov.com/j/1605705819#success
>>>>> 
>>>>> Best regards,
>>>>> Sangbaek


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