Bulletin of the American Physical Society
6th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Sunday–Friday, November 26–December 1 2023; Hawaii, the Big Island
Session L07: Instrumentation: Low-Energy Particle Detectors
9:00 AM–12:00 PM,
Friday, December 1, 2023
Hilton Waikoloa Village
Room: Queens 6
Chair: Forrest Friesen, Triangle Universities Nuclear Laboratory
Abstract: L07.00010 : First results from LACES-X-Array-SATURN: Isomeric State Half-Life in 156Pm*
11:15 AM–11:30 AM
Abstract 
Presenter:
Sergio Lopez-Caceres
(Louisiana State University)
Authors:
Sergio Lopez-Caceres
(Louisiana State University)
Scott T Marley
(Louisiana State University)
Michael P Carpenter
(Argonne National Laboratory)
Guy Savard
(Argonne National Laboratory)
Filip G Kondev
(Argonne National Laboratory)
Patrick A Copp
(Argonne National Laboratory)
Graeme Morgan
(Louisiana State University)
Dariusz Seweryniak
(Argonne National Laboratory)
Jason A Clark
(Argonne National Laboratory)
Walter Reviol
(ANL)
Claus Muller-Gatermann
(ANL)
Kay Kolos
(LLNL)
Daniel E Hoff
(Lawrence Livermore National Laboratory)
Andrew M Rogers
(University of Massachusetts Lowell)
Sanjanee W Waniganeththi
(University of Massachusetts Lowell)
Alan J Mitchell
(Australian National University)
Soumen Nandi
(ANL)
Heshani Jayatissa
(Los Alamos National Laboratory)
David He
(Louisiana State University)
Gemma L Wilson
(Louisiana State University)
Argonne National Laboratory. The LSU-Argonne Conversion Electron Spectrometer (LACES) is
a LN2-cooled Si(Li) detector system designed to be coupled to the X-Array/Scintillator and Tape
Using Radioactive Nuclei (SATURN) decay station. The beta-decay of 156Nd has been employed
to populate states in the deformed, odd-odd nucleus 156Pm. Within the experiment, the half-
life of the low-spin Kπ = 1+ isomeric state at 150.3 keV has been determined. The initial results,
including internal conversion coefficients and transition multipolary assignments, will be presented.
*Work supported by the Department of Energy (DOE), Office of Science under grant no. DE-SC0021315 (LSU), the U.S. DOE contract DE-AC02-06CH11357 (ANL), and the International Technology Center Pacific (ITC-PAC) under contract no. FA520919PA138. This research used resources of ANL’s ATLAS facility, which is a DOE Office of Science User Facility.
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