[BTeam] Injector studies

[Shawn Frierson]

We should try to execute Tom Powers NL C100 FE measurement test plan: BSList 111029

It will inform us on which CM needs Plasma Processing during the SAD.

Shawn

S. Frierson
Accelerator Operations
Thomas Jefferson National Accelerator Facility
(757) 269-7296

On Mar 16, 2024, at 19:49, Eduard Pozdeyev via BTeam <bteam at jlab.org> wrote:


Yves, Jay,

There is a leak in BSY. Some measures will be applied now to seal the leak. Even if it works, it will take overnight until Sunday to pump down the beam line in the BSY to tell whether it works. If it does not work, we will need to wait until Monday to get expertise together to define the path forward.

Meanwhile, we can conduct studies:

  1.  We can conduct studies that do not require beam in the north linac today and tomorrow: heat monster, Adam’s test, etc.
  2.  If the temporary measure that the vacuum group is applying now does not work, we should organize studies in the injector with the beam tomorrow, on Sunday. We can send the beam all the way to the Inline Dump. The north linac is in the power permit. Please, prepare a list of studies and contact the studiers.

Thank you,
Eduard.



--
Eduard Pozdeyev
Director of Accelerator Operations
(office) 757-269-5770
<image001.png>


From: Jay Benesch <benesch at jlab.org>
Date: Saturday, March 16, 2024 at 4:54 PM
To: Eduard Pozdeyev <pozdeyev at jlab.org>
Cc: Yves Roblin <roblin at jlab.org>, Edith Nissen <nissen at jlab.org>
Subject: Re: test plans
Eduard,

Two of the test plans do not require beam, only NL RF.  The two injector
plans can/should be done with FC2 locked in place.

Jay

On 3/16/24 16:51, Edith Nissen wrote:
> Due to the vacuum event, we can’t run beam until that work is complete
> and Eduard re-authorized it
> ------------------------------------------------------------------------
> *From:* Jay Benesch <benesch at jlab.org>
> *Sent:* Saturday, March 16, 2024 4:32 PM
> *To:* Edith Nissen <nissen at jlab.org>
> *Cc:* Yves Roblin <roblin at jlab.org>; Eduard Pozdeyev <pozdeyev at jlab.org>
> *Subject:* test plans
> Edith,
>
> Yves called to remind me about Adam's four hour plan
> https://tasklists.jlab.org/bslist/tasks/24352
> <https://tasklists.jlab.org/bslist/tasks/24352>
> SRF Cavity Field Emission Data Collection for DL Modeling
>
> I reminded Yves of Dennis's three hour plan
> Gather data to cross calibrate IYG0I02 vs. IHA0I02
> https://tasklists.jlab.org/bslist/tasks/24275
> <https://tasklists.jlab.org/bslist/tasks/24275>
>
> My heat monster test can continue in forty minute intervals.  About
> eighteen hours total in NL would finish that linac.  Modules: 1L05,
> 1L10, 1L13, 1L15, and 1L21.  Work on the 1L05/1L15 pair may be
> compatible with Adam's test - you'll have to ask him.
> https://tasklists.jlab.org/bslist/tasks/111012
> <https://tasklists.jlab.org/bslist/tasks/111012>
>
> Max has R28 gun Twiss measurement
> https://tasklists.jlab.org/bslist/tasks/111123
> <https://tasklists.jlab.org/bslist/tasks/111123>
>
> Max also has Wien filter coupling study
> https://tasklists.jlab.org/bslist/tasks/110163
> <https://tasklists.jlab.org/bslist/tasks/110163>
> but we likely don't want to mess with the Wien since Hall C polarization
> is excellent.
>
> -------------------
>
> Hall C RC informs me that the HMS Q2 power supply is not fixed.  Work
> will resume tomorrow.  Dump switch has been swapped out and the spare
> works.  There's another control unit which needs work.  I would not be
> surprised if the collaboration decides to start working on PMT bases at
> 0800 Sunday given the accelerator situation.
>
> Jay

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