Lecturer: Dr. Israel Mardor
Affiliation: Soreq Nuclear Research Center
Abstract:
Research of neutron-rich exotic isotopes
can generate significant contributions to
the understanding of the astrophysical
rapid neutron capture process (r-process)
of nucleosynthesis, and the extension of
nuclear models to regions far from
stability. In this talk I present an initiative
to start a research program of neutron-rich
exotic isotopes in Israel.
In the short term, the plan is to study
specific processes and characteristics in
relevant facilities in the world. I will
discuss medium- and high-energy
neutron-induced fission rates and fission
products distributions of several actinides,
which serve as input to quantify fission
recycling in the r-process; and the
probabilities of beta-delayed multi-neutron
emission (of applicable isotopes), which
affect the beta decay chains during
"freeze out", thus changing the resulting
stable isotopes r-process abundances.
For the longer term, I explore the
possibility of constructing a neutron-rich
exotic isotopes facility at SARAF Phase II,
mainly based on medium- and high-
energy induced fission. Neutron induced
fission has the advantage of generating
isotopes with a higher neutron number,
thus extending our reach to regions
farther from stability. Preliminary
estimations indicate that such a facility will
be potent in a world competitive manner.
Additional details of the upcoming Israeli
Joint Nuclear Physics' Seminars can be
found on the following link.