[Cuga] End of FY12 Nuclear Physics Program - A message from Mont

[Lorelei Carlson]

To:                 Jefferson Lab Community
Subject:        End of FY12 Nuclear Physics Program


May 18, 2012 was scheduled as the last day of the FY12 Experimental 
Physics run and hence the
end the of the 6 GeV Program. We put the plan for running in FY09-FY12 
in late 2008 soon after
I arrived at the lab. With relatively minor modifications, we have been 
able to run the program and,
  with supplementary support from the Office of Nuclear Physics, been 
able to include the G2P
and/GEp program. During that time there have been some challenges, but 
the accelerator has
performed exceedingly well, most strikingly in delivering superlative 
beam intensity and quality
to experiments with demanding requirements such as QWeak.

Nevertheless, and as might be expected, we have received requests for 
extensions of the running period.

In considering what to do, we have taken into account the following factors:

    .    Gains to physics and technical advances of experimental programs.

    .    Difficulties that would be generated in the logistics and
    staffing of the upcoming Long Shutdown
           particularly associated with operation of CHL and testing of
    C-100 cryomodules.

    .    Increased costs associated with the way utilities, including
    electricity demand charges, are contracted.
          This is to be taken with the prospect of a difficult FY13 budget.

    .    The desire to move as quickly as possible towards the 12 GeV
    era. The current schedule, even with the
           extension of the shut down from 12 to 16 months will support
    meeting the CD4A goals and allow us to
           start commissioning the accelerator in late 2013 and to move
    to commissioning of beam to Hall A,
           and then Hall D, soon thereafter


In the end we have decided to leave the current schedule as it stands.

Notwithstanding the above the PEPPo Experiment, which has minimal 
negative impact, will run in the injector
during the first weeks of the shutdown.



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