
Gamma Ray Spectroscopy Group
overview
Using TRIUMF’s GRIFFIN and TIGRESS experimental facilities, researchers with the Gammy Ray Spectroscopy group are using information from radiation emitted when radioactive nuclei decay to better understand the atomic nucleus.
By studying the gamma rays that emit from decaying nuclei at the boundaries of stability, GRIFFIN and TIGRESS are helping shine a light on the forces that hold the nucleus together; how the properties of nuclei change based on their composition; how heavy elements are formed in the Universe; and other mechanisms and dynamics that govern how our matter world behaves.
research Feature

Cross-shell excited configurations in the structure of silicon-34
In this APS publication, researchers studied cross-shell configurations – excited states in an atom or nucleus where an electron or nucleon has jumped from its usual shell to a different, higher energy – silicon-34 by analyzing the beta decay of aluminum-34, where the valence protons and neutrons occupy different major shells, leading to “intruder” levels in the silicon-34 nucleus. Read more.
facilities
The Gammy Ray Spectroscopy Group pursues research primarily with two main facilities: GRIFFIN and TIGRESS.
GRIFFIN
GRIFFIN (Gamma Ray Infrastructure For Fundamental Investigations of Nuclei) is the world’s most powerful tool for the decay spectroscopy of rare isotopes, and it is providing TRIUMF scientists an unparalleled view of the interplay of forces that create nuclear structure. Read more.
TIGRESS
With TIGRESS (TRIUMF-ISAC Gamma Ray Suppressed Spectrometer), an in-beam gamma ray spectrometer, TRIUMF scientists are opening a new era of high-precision nuclear structure experiments with rare isotopes. Read more.
Careers
For TRIUMF employment opportunities, please visit the Career Opportunities page.