[PEPPo] Urgent request for information

[fanchini at jlab.org]

Dear all,
I tell you my availabilities and after that few considerations.

In my case the deadline of my J1 visa is 31 May 2012 and the contract will
end on 14 June (I could extend visa only for few days).

Considering all the options, I believe that the 2 favourite options are:
the first (all data taking period in May) and the last (1"week" in May and
the reamining 1 in September/October), for different reasons.

The option one because it was the original idea and i believe that all of
us consider PEPPo as part of their plans. (I'm talking about organization
and not motivation) :) There is also another aspect, if we will run at the
"end" of the shut down the injector will be off since few months and
everything should be restarted, retuned etc..instead of running in May
where everything will be going "smoothly". I know that we don't have
special requirements, but it is like a car not used for a long time...

I like the 3rd one because in the first "week" we could commission PEPPo
with the electron beam. (I'm hoping that, in May, all the regions will be
already tested "grabbing" beam during Jan/Feb). In that case we should
have time to analyze data, optimize positron measurements and maybe, find
other interested students. On the other side, people should not be able to
redefine their plans.

I don't really like the second option. On this case we will be stuck for a
long period with the conseguences that we will "forget" or send PEPPo to a
Next to Leading Order.

Obviosly in my considerations I did not take into account some other
features as, loaned tools or spaces that we can loose, motivation for
"postponing" the data taking period or other possible
advantages/disadvantages.

Have a good day,
Erica






> Dear PEPPo Collaborator,
>
> Scheduling the PEPPo experiment during the 12MSD is a hot topic, in both
> the good and bad sense.  It is a positive thing in the sense that the
> hard work to install PEPPo and successfully defend the PAC proposal has
> put a legitimate foot in the door to request this time.  It is bad, I
> believe, only in the sense that scheduling the experiment during 12MSD
> is logistically difficult.   A short time ago I presented to the 12MSD
> team our beam and clock hour requirements, and now they are seeking to
> understand the pros and cons of when (not if!) our experiment is
> scheduled.
>
> There are likely three options that will be weighed against one another;
> a) delaying 12MSD activities at the INJ/NL by 2-3 weeks to allow the
> full experiment to occur beginning mid-May, b) postponing the experiment
> into the Fall (September/October?) time frame w/ potentially less
> constraint on the total number of days/shifts we can run, and c) a
> compromise of these two, providing for a short commissioning run (days
> to a week) in mid-May, with the balance of the run occurring later in
> the shutdown.
>
> Although we are described as a hard working collaboration, we are indeed
> small and staffing the experiment is a factor.  I realize this is short
> notice, but can you please take a moment to send me a brief note
> detailing your /unavailability /to participate in the experiment from
> May thru December of 2012.  This can be teaching conflicts, unchangeable
> plans, terms of service/contact that expire, etc.  Effectively, your
> availability to travel to JLAB for extended period of time and perform
> the experiment.  In addition, please comment on any other pros/cons
> which you believe impact when the experiment might be performed.
>
> You may reply to the entire collaboration list, but at a minimum please
> send e-mail to myself and Eric.
>
> Best,
> Joe
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