[Olympus] End of OLYMPUS running

[Michael Kohl]

Dear Colleagues,

the last OLYMPUS run with DORIS beam (run 9505) has been completed today, 
exactly 60 seconds prior to the official shutdown of DORIS at 8am on 
January 2, 2013.

The preparation and running of OLYMPUS has been a major success, thanks to 
the many contributions by all of you. I would like to particularly thank 
our postdocs who have taken responsibility and worked tirelessly for two 
years to make this happen. I would also like to thank our students who 
have worked on OLYMPUS with all their dedication. Lastly, I would like to 
thank all of the OLYMPUS collaborators, as well as DESY with the 
accelerator and machine groups for their support for OLYMPUS.

DORIS has been performing beyond expectations with a very high running 
efficiency. The essential key for achieving our luminosity goal has been 
the established top-up running mode in combination with the second 
level trigger, thus allowing to increase the target density by factors.
To our knowledge, OLYMPUS has been the first internal-target experiment 
ever to be run in top-up mode.

The unusual run extension over Christmas and New Year, a gracious offer 
made by the accelerator group, has also been an important element 
that helped to achieve and exceed our goal for the integrated luminosity.
We have acquired over 4 fb^-1 in this beamtime, and more than 3.6 fb^-1 
with defined conditions and positive toroid polarity.

We have switched to cosmics data taking today, which will continue for the 
month of January. We will now be shifting our focus to the analysis, which 
will progress with high intensity this and likely next year as well. Let's 
look forward to producing a significant and robust result that will last.


A happy and successful new year 2013 to everybody!

    Michael, in behalf of OLYMPUS



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| Dr. Michael Kohl, Assistant Professor and Staff Research Scientist
| Physics Department, Hampton University, Hampton, VA 23668
| Jefferson Lab, C117, 12000 Jefferson Avenue, Newport News, VA 23606
| Phone: +1-757-727-5153 (HU), +1-757-269-7343 (Jlab)
| Fax:   +1-757-728-6910 (HU), +1-757-269-7363 (Jlab)
| Email: kohlm at jlab.org
| Cell:  +1-757-256-5122 (USA)
|
| Deutsches Elektronen-Synchrotron DESY, Bd. 66, Rm. 6,
| Phone: +49-40-8998-6406, Cell: +49-171-101-1967
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