Production of neutron deficient radionuclides for applications: An interdisciplinary approach
Abstract
Use of radioisotopes or radiations has now been popular in different disciplines of sciences. Although nuclear reactor facilities have been the sole supplier of radioisotopes for a variety of applications, accessibly to the reactor is gradually decreasing. Alternatively, choice has been diversified from neutron rich to neutron deficient radionuclidesdue to the advancement in accelerator technology. However, production of neutron deficient radionuclides is not well explored in connection to their applications. My activities are mostly focused here. In this context, choice of radionuclide is an important issue where complete knowledge of nuclear and chemical data is mandatory. Nuclear reaction data helps to optimise the production parameters and chemical data an important helps to ensure the purity and quality of the product. Thus production of radioisotopes and preparation of radiotracers urges interdisciplinary research. In view of the growing demand, large number of nuclear and chemical data has been generated for the production of neutron deficient radionuclides which includes radioisotopes of terbium, gadolinium, astatine, technetium, ruthenium, zirconium, niobium, cadmium, thallium rhenium, etc. using our national accelerator facilities.Efficient chemical separation methods have been developed to separate the product from the corresponding bulk target. During my talk I shall discuss in detail our approach to address the subject.
05/06/2013 at 4:00 pm
Prof. Hiranmaya Mishra, PRL, Ahmedabad
HEP Seminar
Lecture Hall Block A, Institute of Physics
Document Date:
KINETICS OF CHIRAL TRANSITIONS IN DENSE QUARK MATTER
KINETICS OF CHIRAL TRANSITIONS IN DENSE QUARK MATTER
Abstract
The present talk will be based on kinetics of chiral transitions in quarkmatter that is probably produced resulting from a heavy ion collision.I will focus on far from equilibrium kinetics, subsequent to a quench froma dis ordered phase ( with zero quark condensates) to the ordered phase.This rapid quench renders the system thermodynamically unstable. Theevolution to the new equlibrium state is charecterized by spatio temporalpattern formation,with emergence and growth of domains of the preferred phase. Thisnonlinear evolution is usually referred to as phase ordering dynamics orcoarsening or domain growth.I will discuss the universal properties (e.g. growth laws, scaling ofcorrelation functions, bubble dynamics etc.) in the late stages of chiralkinetics.This will be presented within the Nambu-Jona Lasinio model to describechiral transition in strong interaction physics.
