[Clas12_rgb] [EXTERNAL] Re: do we really need the empty target run?

[Bryan McKinnon]

Hi all

Of the responses received, the consensus was not to take empty target data.
The plan for the remainder of swing and through owl until until beam off at 7am is now finalised as production data at 50nA.

Cheers
Bryan

___________________________________

Dr. Bryan McKinnon

Nuclear and Hadron Physics Research
School of Physics and Astronomy
University of Glasgow
Glasgow
G12 8QQ
Scotland UK

Tel: (+44/0) 141-330-7226<tel:141-330-7226>
___________________________________


On 29 Jan 2020, at 17:51, "silvia at jlab.org" <silvia at jlab.org> wrote:

Hi Bryan,
good, then I propose to wait until, say, 8PM. If no objections arrive, we
could skip the ET run, as no one really wants it.
Silvia


As RC, whatever the group consensus on this is, I will finalise the run
plan by end of swing shift.

Removing the RC hat, I would rather we took production data from now until
beam off tomorrow. I do not think we need empty target data.

Cheers
Bryan


___________________________________

Dr. Bryan McKinnon

Nuclear and Hadron Physics Research
School of Physics and Astronomy
University of Glasgow
Glasgow
G12 8QQ
Scotland UK

Tel: (+44/0) 141-330-7226<tel:141-330-7226>
___________________________________


On 29 Jan 2020, at 17:11, "silvia at jlab.org" <silvia at jlab.org> wrote:

Dear all,
in the spring run we took 174M events with empty target, and in the fall
we took 51M more. Do we really need to take more empty target data
tonight?
The only difference between the spring data and now is the beam energy,
while in the fall we had same energy as now but opposite torus polarity.
I am just asking this because we finally have a very very nice beam, and
it seems a bit sad to waste 5 hours of it for data that maybe no one will
ever analyze. Or will anyone? It wasn't clear at yesterda's RC meeting...
Thanks for your feedback - and don't forget tomorrow's party at noon at
the ResFac!
Silvia


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