Featured Research

from universities, journals, and other organizations

Structure of superheavy elements in 'island of stability': Nucleus 256Rf can now be studied in depth

Date:
August 15, 2012
Source:
Suomen Akatemia (Academy of Finland)
Summary:
One of the most sought-after goals in nuclear physics is an understanding of the structure of superheavy elements in the so-called "island of stability". These nuclei contain a large number of protons, and would ordinarily be ripped apart by the strong Coulomb repulsion between them. However, quantum mechanical shell-effects act to stabilize the nuclei, meaning that they can then live long enough to be observed in the laboratory. Now, experimental advances make it possible to study the nucleus 256Rf in detail for the first time.

One of the most sought-after goals in nuclear physics is an understanding of the structure of superheavy elements in the so-called "island of stability." These nuclei contain a large number of protons, and would ordinarily be ripped apart by the strong Coulomb repulsion between them. However, quantum mechanical shell-effects act to stabilize the nuclei, meaning that they can then live long enough to be observed in the laboratory.

Related Articles


In order to understand these "shell effects," detailed experimental studies are needed. Such studies are unfortunately precluded by the fact that superheavy elements can only be produced in small numbers (sometimes only a few atoms per month). It is, however, possible to study lighter nuclei in more detail. These studies can be used to gain indirect information on the island of stability.

Now, experimental advances at the Accelerator Laboratory of the University of Jyväskylä (JYFL-ACCLAB), Finland, have meant that it has been possible to study the nucleus 256Rf in detail for the first time. The facilities at JYFL-ACCLAB are currently the only ones worldwide which permit such studies to be carried out. The 256Rf nucleus has 104 protons, which corresponds to the accepted gateway to the superheavy elements. The 256Rf nucleus is the heaviest which has so far been studied in this manner.


Story Source:

The above story is based on materials provided by Suomen Akatemia (Academy of Finland). Note: Materials may be edited for content and length.


Journal Reference:

  1. P. Greenlees, J. Rubert, J. Piot, B. Gall, L. Andersson, M. Asai, Z. Asfari, D. Cox, F. Dechery, O. Dorvaux, T. Grahn, K. Hauschild, G. Henning, A. Herzan, R.-D. Herzberg, F. Heßberger, U. Jakobsson, P. Jones, R. Julin, S. Juutinen, S. Ketelhut, T.-L. Khoo, M. Leino, J. Ljungvall, A. Lopez-Martens, R. Lozeva, P. Nieminen, J. Pakarinen, P. Papadakis, E. Parr, P. Peura, P. Rahkila, S. Rinta-Antila, P. Ruotsalainen, M. Sandzelius, J. Sarén, C. Scholey, D. Seweryniak, J. Sorri, B. Sulignano, Ch. Theisen, J. Uusitalo, M. Venhart. Shell-Structure and Pairing Interaction in Superheavy Nuclei: Rotational Properties of the Z=104 Nucleus ^{256}Rf. Physical Review Letters, 2012; 109 (1) DOI: 10.1103/PhysRevLett.109.012501

Cite This Page:

Suomen Akatemia (Academy of Finland). "Structure of superheavy elements in 'island of stability': Nucleus 256Rf can now be studied in depth." ScienceDaily. ScienceDaily, 15 August 2012. <www.sciencedaily.com/releases/2012/08/120815082719.htm>.
Suomen Akatemia (Academy of Finland). (2012, August 15). Structure of superheavy elements in 'island of stability': Nucleus 256Rf can now be studied in depth. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2012/08/120815082719.htm
Suomen Akatemia (Academy of Finland). "Structure of superheavy elements in 'island of stability': Nucleus 256Rf can now be studied in depth." ScienceDaily. www.sciencedaily.com/releases/2012/08/120815082719.htm (accessed November 23, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Sunday, November 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Toyota's Hydrogen Fuel-Cell Green Car Soon Available in the US

Toyota's Hydrogen Fuel-Cell Green Car Soon Available in the US

AFP (Nov. 21, 2014) — Toyota presented its hydrogen fuel-cell compact car called "Mirai" to US consumers at the Los Angeles auto show. The car should go on sale in 2015 for around $60.000. It combines stored hydrogen with oxygen to generate its own power. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
Google Announces Improvements To Balloon-Borne Wi-Fi Project

Google Announces Improvements To Balloon-Borne Wi-Fi Project

Newsy (Nov. 21, 2014) — In a blog post, Google said its balloons have traveled 3 million kilometers since the start of Project Loon. Video provided by Newsy
Powered by NewsLook.com
Raw: Paralyzed Marine Walks With Robotic Braces

Raw: Paralyzed Marine Walks With Robotic Braces

AP (Nov. 21, 2014) — Marine Corps officials say a special operations officer left paralyzed by a sniper's bullet in Afghanistan walked using robotic leg braces in a ceremony to award him a Bronze Star. (Nov. 21) Video provided by AP
Powered by NewsLook.com
British 'Bio-Bus' Is Powered By Human Waste

British 'Bio-Bus' Is Powered By Human Waste

Buzz60 (Nov. 21, 2014) — British company GENeco debuted what its calling the Bio-Bus, a bus fueled entirely by biomethane gas produced from food scraps and sewage. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins