Dear Colleague:

The gamma-ray energy tracking array, GRETINA, is currently running a campaign of experiments at the National Superconducting Cyclotron Laboratory, MSU, which began in June 2012. In summer 2013, GRETINA is scheduled to move to the ATLAS facility at ANL. This would conclude the series of campaigns planned and endorsed by the user community in Richmond, 2007.

It is time again for the user community to reconvene to discuss future science and siting of GRETINA. To that end, a workshop is being planned at Argonne National Laboratory on March 1-2, 2013, with the following focuses:

Day 1) Discuss and exchange information between ATLAS staff and GRETINA users on the detailed science opportunities at ATLAS, serving as guidance for the call of proposals in late spring.

Day 2) Discuss science opportunities and future siting for GRETINA beyond the ATLAS campaign.

Please mark these date and pass this announcement on to any interested colleagues. More details on the agenda and logistics will follow in the new year.

In the meantime, we would very much like to hear any thoughts, comments, or suggestions you may have regarding GRETINA operations; either currently at NSCL, the planned campaign at ATLAS, or on future GRETINA siting and science opportunities.

The GRETINA Users Executive Committee
Paul Fallon
Partha Chowdhury
Alexandra Gade
Ingo Wiedenhover
Shaofei Zhu