Nuclear structure research at TRIUMF-ISAC

NUCL 43

Paul E. Garrett, pgarrett@physics.uoguelph.ca, Department of Physics, University of Guelph, Guelph, ON N1G2W1, Canada
The radioactive beam facilities at TRIUMF, ISAC-I and ISAC-II, have major programs in nuclear astrophysics, nuclear structure, and weak interaction studies. At ISAC-I, nuclear structure research is centered around β-decay studies performed with the 8π spectrometer which consists of 20 Compton-suppressed hpGe detectors, a moving tape collector, an array of 20 plastic scintillators for β-particle tagging, 5 Si(Li) detectors for conversion electrons, and 10 BaF2 detectors for fast-lifetime measurements. With this device, comprehensive studies are being performed that allow for a detailed view of nucleus through β decay. The ISAC-II facility currently provides accelerated beams up to mass 30, and initial experiments using the TIGRESS spectrometer have taken place. In its final configuration, the TIGRESS array will consist of twelve 32-fold segmented large-volume clover detectors and various auxiliary detectors. A program of Coulomb excitation studies has commenced using BAMBINO, a detector consisting of Si CD devices. Results from recent experiments with the 8π and TIGRESS spectrometers will be presented.