ASET Colloquium

Advances in gamma detection for the study of rare isotopes

by Prof. Rudrajyoti Palit (Department of Nuclear and Atomic Physics, TIFR, Mumbai)

Friday, October 22, 2021 from to (Asia/Kolkata)
at Online ( https://zoom.us/j/91427966752 )
Description
The physics of rare isotopes, having large neutron or proton excess, is one of the leading frontiers in contemporary subatomic physics. Measurements involving short-lived, rare isotopes pose new challenges for nuclear models and have strong implications for understanding the elemental abundances in the Universe. Recent developments of radiation detectors and imagers provide a new opportunity for the study of these exotic nuclei. Improvement in detection efficiency along with better energy, time, and position resolutions are crucial for these studies. The DEcay SPECtroscopy (DESPEC) Germanium Array Spectrometer (DEGAS) is being constructed at the Facility for Antiproton and Ion Research (FAIR) for the decay spectroscopy of radioactive ions. It is a key instrument of the Decay Spectroscopy (DESPEC) experiment at FAIR. At DESPEC, rare isotopes available from the Super FRagment Separator (Super FRS) will be stopped in an active implanter surrounded by DEGAS measuring gamma rays from α, β, proton, neutron, and isomer decays. In particular, detectors with imaging capability will be essential to detect gamma rays from exotic nuclei (with a production rate of few counts per hour) and isomers with long lifetimes. Our involvement in the DEGAS project for the development of the detectors in the different phases will be discussed. In addition to the nuclear physics experiments, some of these detectors have the potential to serve the medical imaging industry because of their better spatial sensitivity.
Organised by Dr. Satyanarayana Bheesette