Established in 2012, the GRETINA-GRETA Users Group is an open organization of scientists interested in using GRETINA (and in the future, GRETA) for scientific research.  The Users Group Charter is available here.  

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GRETINA-GRETA Users Executive Committee

The GRETINA-GRETA Users Group is represented by the GRETINA-GRETA Users Executive Committee (GUEC):

Current membership:
  • Chris Campbell (LBNL)
    • Term ends 1/31/2023
  • Hiro Iwasaki (MSU/NSCL) 
    • Term ends 1/31/2022
  • Torben Lauritsen (ANL)
    • Term ends 1/31/2022
  • Steve Pain (ORNL)
    • Term ends 1/31/2023
  • Mark Spieker (FSU, Chair)
    • Term ends 1/31/2022
Previous elected members of the GUEC include: Mitch Allmond (ORNL, 2015-2017), Peter Bender (UMass Lowell, 2018-2020), Heather Crawford (LBNL, 2016-2020), Paul Fallon (LBNL, 2012-2016), Alexandra Gade (NSCL/MSU, 2012-2016, 2018-2020), Robert Janssens (UNC, 2019-2021), Ingo Wiedenhoever (FSU, 2012-2014) and Shaofei Zhu (BNL, 2019-2021).  We thank them for their wonderful service and contributions.

Project Task List (February 2015)

In October 2014 GRETINA underwent a review of the project's transition to science operations. The outcome from the review was extremely positive and this owes much to the efforts of the many people in the project and community at large who have worked hard over the past several years to make GRETINA a powerful and scientifically successful gamma-ray spectrometer. 

The plans to continue to enhance GRETINA capabilities were also presented at the review, and a list of near-to-mid term activities and tasks was developed. Augusto Macchiavelli (project lead) has asked the GUEC to make this list available to the GRETINA user community and would like to encourage anyone interested in getting more involved in the technical developments and activities to please take a look and contact him. It is a great opportunity for people to learn about and contribute to this fantastic instrument, and a future GRETA.

A summary of these tasks with a brief description, duration, and expertise level is given in the attached file.

Please do not hesitate to contact Augusto ( if you have any questions related to these tasks or on GRETINA/GRETA activities in general.