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Title: Heaviest Nuclei: New Element with Atomic Number 117

Abstract

One of the fundamental outcomes of the nuclear shell model is the prediction of the 'stability islands' in the domain of the hypothetical super heavy elements. The talk is devoted to the experimental verification of these predictions - the synthesis and study of both the decay and chemical properties of the super heavy elements. The discovery of a new chemical element with atomic number Z=117 is reported. The isotopes 293117 and 294117 were produced in fusion reactions between 48Ca and 249Bk. Decay chains involving 11 new nuclei were identified by means of the Dubna gas-filled recoil separator. The measured decay properties show a strong rise of stability for heavier isotopes with Z =111, validating the concept of the long sought island of enhanced stability for heaviest nuclei.

Authors:
Publication Date:
Research Org.:
FNAL (Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States))
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
987797
DOE Contract Number:
AC02-07CH11359
Resource Type:
Multimedia
Resource Relation:
Conference: Fermilab Colloquia, Fermi National Accelerator Laboratory (FNAL), Batvia, Illinois (United States), presented on May 27, 2010
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR; FUSION; HEAVY ELEMENT

Citation Formats

Oganessian, Yuri. Heaviest Nuclei: New Element with Atomic Number 117. United States: N. p., 2010. Web.
Oganessian, Yuri. Heaviest Nuclei: New Element with Atomic Number 117. United States.
Oganessian, Yuri. Thu . "Heaviest Nuclei: New Element with Atomic Number 117". United States. https://www.osti.gov/servlets/purl/987797.
@article{osti_987797,
title = {Heaviest Nuclei: New Element with Atomic Number 117},
author = {Oganessian, Yuri},
abstractNote = {One of the fundamental outcomes of the nuclear shell model is the prediction of the 'stability islands' in the domain of the hypothetical super heavy elements. The talk is devoted to the experimental verification of these predictions - the synthesis and study of both the decay and chemical properties of the super heavy elements. The discovery of a new chemical element with atomic number Z=117 is reported. The isotopes 293117 and 294117 were produced in fusion reactions between 48Ca and 249Bk. Decay chains involving 11 new nuclei were identified by means of the Dubna gas-filled recoil separator. The measured decay properties show a strong rise of stability for heavier isotopes with Z =111, validating the concept of the long sought island of enhanced stability for heaviest nuclei.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {5}
}

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