[BTeam] plans for the 19th and 20th.

Yves Roblin roblin at jlab.org
Tue Dec 12 09:26:25 EST 2023


On the 19th of December, physics delivery will stop at 700AM. Hall C will stay locked up until 2PM to allow for beam.

Prior to terminating beam, we will document the machine setup in order to be able to efficiently restart in January:

https://tasklists.jlab.org/bslist/tasks/110441

Following this, we will do the Hall C FFB test (Dennis Turner/Ryan Bodenstein)

https://tasklists.jlab.org/bslist/tasks/110062

At this point, we no longer need Hall C and they can be surveyed/opened. Goal is to do that before 2PM.

The rest of the test plans are using tune mode mode and the main machine:

 Measuring the momentum acceptance of the injector chicane (Dennis) which requires beam to 1R.


https://tasklists.jlab.org/bslist/tasks/110432

then the FE emission testplan which requires no beam but control of the linac.

https://tasklists.jlab.org/bslist/tasks/24352

and finally, the two testplans related to BLM sensitivity:
https://tasklists.jlab.org/bslist/tasks/108265

https://tasklists.jlab.org/bslist/tasks/110398

This carries us until Owl Shift  where operator training with Occur. We will keep pass 3 separator up for this purpose.
(Brian Freeman, Dan Moser)

At 700 AM on the 20th, we start surveying the accelerator (linacs+bsy, etc..) with the exception of the injector which will remain in use to FC1 until 2PM in order to do these:

https://tasklists.jlab.org/bslist/tasks/110315

and
https://tasklists.jlab.org/bslist/tasks/110188
which is the study of photocathode effects for KLONG. It requires the Mott polarimeter and since we went back from 180 KeV to 140 KeV, the safety group will have to certify the new settings for the 1D dipole prior (1H).


By 2PM on the 20th, we terminate all beam, including in injector and open it up.




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