Discover
/
Article

Berkeley Lab Leapfrogs to Elements 116 and 118

AUG 01, 1999
The discovery of two new elements where none had been expected gives nuclear physicists hope of exploring hitherto inaccessible regions of the nuclear chart.

If nuclear physicists were surprised last January by a reported sighting of element 114, they were utterly floored by a recent report of elements 116 and 118. No one had thought that these two were worth looking for with today’s accelerators. No one, that is, except theorist Robert Smolańczuk of Warsaw’s Andrej Soltan Institute for Nuclear Studies, who had calculated that certain reactions can generate isotopes of elements 116 through 119 with cross sections orders of magnitude greater than expected. Researchers at Lawrence Berkeley National Laboratory, where Smolańczuk is currently a Fulbright scholar, took a chance that he was right and set up the prescribed experiment for producing the new element 118 293 (and its daughter 116 289 ). They found three candidates in 11 days.

This article is only available in PDF format

Related content
/
Article
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
/
Article
/
Article
After a foray into international health and social welfare, she returned to the physical sciences. She is currently at the Moore Foundation.
/
Article
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
This Content Appeared In
pt-cover_1999_08.jpeg

Volume 52, Number 8

Get PT in your inbox

pt_newsletter_card_blue.png
PT The Week in Physics

A collection of PT's content from the previous week delivered every Monday.

pt_newsletter_card_darkblue.png
PT New Issue Alert

Be notified about the new issue with links to highlights and the full TOC.

pt_newsletter_card_pink.png
PT Webinars & White Papers

The latest webinars, white papers and other informational resources.

By signing up you agree to allow AIP to send you email newsletters. You further agree to our privacy policy and terms of service.