GRETA Dedication: Celebrating a Decade of GRETINA Science

23 Apr 2025, 09:00 → 24 Apr 2025, 17:20 US/Pacific

Heather Crawford, Paul Fallon (LBNL)

The idea to construct a 4$\pi$ Gamma-Ray Energy Tracking Array was proposed almost 30 years ago. Since then there has been a tremendous amount of technical innovation and progress in detector technology, signal processing, and advanced electronics and computing systems resulting in GRETINA and AGATA (demonstrator). These arrays have been operating in the US and Europe (respectively) for over a decade and have demonstrated the performance and science impact of such arrays.

GRETA, which builds on GRETINA to complete the full 4$\pi$ array, is now nearing completion and to mark this milestone we are pleased to announce a 2 day workshop/dedication that will be held at Lawrence Berkeley National Laboratory April 23-24, 2025.

In these two days, we will celebrate the evolution of gamma-ray spectroscopy, the technologies which enable the science and the science itself, focusing on more than a decade of physics with GRETINA and looking forward to the next decades of GRETA.

More details on the program will be coming soon.

Wednesday, 23 April

09:00 → 10:25 Overview Talks

09:00 Welcome

09:05 TBD

Speaker: Mark Riley (Florida State University)

09:15 Gamma-ray Spectroscopy at Berkeley: Frank Stephens’ Legacy

Speaker: Augusto Macchiavelli (Oak Ridge National Laboratory)

09:50 GRETA

Speaker: Paul Fallon

10:25 → 10:55 Break

10:55 → 12:05 Overview Talks

10:55 Germanium Detectors and LEGEND

Speaker: David Radford (Oak Ridge National Laboratory)

11:30 Continuing needs and opportunities for HPGe detector based applications (terrestrial and beyond)

Speaker: Kai Vetter (Lawrence Berkeley National Laboratory)

12:05 → 13:20 Lunch

13:20 → 14:35 GRETINA Overview Talks

13:20 TBD

Speaker: Christopher Campbell (Lawrence Berkeley National Laboratory)

13:45 TBD

Speaker: Dirk Weisshaar (Facility for Rare Isotope Beams)

14:10 The GRETINA campaigns at ATLAS

Speaker: Michael Carpenter (Argonne National Laboratory)

14:35 → 15:05 Break

15:05 → 17:00 GRETA Tour and Dedication

17:30 → 19:30 Poster Session and Reception

Thursday, 24 April

09:00 → 10:40 GRETINA Physics Talks

09:00 Highlights from the AGATA Physics Campaigns

Speaker: Magda Zielinska (CEA Saclay)

09:25 TBD

Speaker: Nori Aoi

09:50 Lifetime measurements with GRETINA

Speaker: Hiro Iwasaki (Facility for Rare Isotope Beams / MSU)

10:15 Novel opportunities for the study of spin-isospin modes with in-beam gamma-ray spectroscopy

Speaker: Remco Zegers (Facility for Rare Isotope Beams / MSU)

10:40 → 11:00 Break

11:00 → 12:15 GRETINA Physics Talks

11:00 Studying Explosive Nucleosynthesis with GRETINA

Speaker: Gavin Lotay (University of Surrey)

11:25 TBD

Speaker: Heather Crawford

11:50 Spectroscopy of neutron-rich isomeric fragments of 198Pt with GRETINA

Speaker: Partha Chowdhury (University of Massachusetts Lowell)

12:15 → 13:15 Lunch

13:15 → 14:55 GRETINA Physics Talks

13:15 Pear-shaped 144,146Ba and beyond

Speaker: Ching-Yen Wu (Lawrence Livermore National Laboratory)

13:40 TBD

Speaker: Lew Riley (Ursinus College)

14:05 Octupole Correlations: Progress as a function of Resolving Power

Speaker: Robert Janssens (University of North Carolina)

14:30 TBD

Speaker: Steve Pain (Oak Ridge National Laboratory)

14:55 → 15:25 Break

15:25 → 16:50 GRETINA Physics Talks

15:25 TBD

Speaker: Alexandra Gade (Facility for Rare Isotope Beams / MSU)

15:50 In-beam spectroscopy of exotic nuclei at ATLAS

Speaker: Darek Seweryniak (Argonne National Laboratory)

16:15 Gretina at FRIB: Collectivity in the heaviest N=Z nuclei

Speaker: Mike Bentley (University of York)

16:40 Closing Remarks

Speaker: Mark Riley (Florida State University)