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

sangbaek sangbaek at jlab.org
Wed Apr 16 09:33:20 EDT 2025


Dear All,

We'll have an RC meeting at 11:30 am ET on zoom or in the counting 
house.
As planned, the beam is off for the RF recovery and beam studies. ETA of 
the beam is 8–9 pm.
Please let me and Daniel know if you want controlled access.

RC summary: https://logbooks.jlab.org/entry/4357499
Zoom link: https://jlab-org.zoomgov.com/j/1605705819#success

Best regards,
Sangbaek

On 2025-04-15 09:48, sangbaek wrote:
> 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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