Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Scientists get set for simulated nuclear inspection

01.09.2014

Some 40 scientists and technicians from around the world will descend on Jordan in November to take part in a simulated on-site inspection of a suspected nuclear test site on the banks of the Dead Sea.

Playing the part of inspectors, the experts will have access to a wide range of sensor technologies to look for signs of whether a nuclear explosion has taken place. At the same time, other role-players representing the state under inspection will try to put them off their scent.

The aim of this elaborate exercise, as science writer Edwin Cartlidge explains in this month's Physics World, is to prepare for the on-site inspections foreseen under the Comprehensive Nuclear-Test-Ban Treaty (CTBT). Opened for signature in 1996, this agreement bans all signatory nations from carrying out nuclear tests anywhere on Earth or in space.

The CTBT has been signed by more than 180 nations to date, but to become legally binding all 44 countries that possessed nuclear technology in 1996 must sign it and then ratify it, which typically means that their parliaments must approve it in a vote. However, eight of those countries, including North Korea and the US, have still to do so.

... more about:
»CTBTO »IMS »IOP »Physics »evidence »gases »phenomena »simulated »technologies »waves

Until the CTBT gets the backing of all the relevant nations, scientists cannot perform the final and crucial part of the verification regime specified in the treaty: on-site inspection, which would be invoked following initial evidence of any nuclear testing provided by a global network of sensors known as the International Monitoring System (IMS).

In the article, Cartlidge explains in more detail the role that the IMS's 279 facilities currently play in detecting four types of physical phenomena than can provide evidence of a nuclear explosion having taken place.

Data produced by measuring these phenomena – seismic waves, radioactive nuclei, underwater sound waves and infrasonic waves – are continually sent in near real-time to the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) in Vienna, Austria, where they are pieced together and used to look for any suspicious or unnatural events.

"Unfortunately, the evidence from the IMS is not always enough to convince signatories of the CTBT that a nuclear test has taken place. The network did not, for example, detect any radionuclides following a test North Korea carried out in 2009, and it was nearly two months before stations in Japan and Russia picked up radioactive noble gases after [North Korea's] 2013 test," Cartlidge writes.

Once the experts arrive at the roughly 1000 km2 of mountainous desert and scrubland in Jordan, they will have access to almost all of the sensor technologies available to them under the terms of the CTBT, including ultraviolet light to search for vehicle tracks in the dirt, infrared radiation to hunt down the exact point of any possible explosion, and noble-gas detection systems to measure the telltale gases xenon and argon.

"While the treaty remains on hold, CTBTO scientists will continue to refine and test their monitoring techniques, ensuring that they are as ready as they can be should they finally be called upon to investigate what could be the explosion of a real nuclear weapon. "The exercise in Jordan should provide a stern test of that preparedness," Cartlidge concludes.

Also in this issue:

  • Pointless or profound? -- The search for "sterile" neutrinos
  • The ultimate job -- What it really takes to be CERN boss
  • Cosmic discovery -- How Einstein studied the steady state
###

Please mention Physics World as the source of these items and, if publishing online, please include a hyperlink to: http://physicsworld.com

Notes for editors:

1. Physics World is the international monthly magazine published by the Institute of Physics. For further information or details of its editorial programme, please contact the editor, Dr Matin Durrani, tel +44 (0)117 930 1002. The magazine's website physicsworld.com is updated regularly and contains daily physics news and regular audio and video content. Visit http://physicsworld.com.

2. For copies of the articles reviewed here contact Mike Bishop, IOP Publishing Senior Press Officer, tel: +44 (0)11 7930 1032, e-mail: michael.bishop@iop.org

3. The Institute of Physics is a leading scientific society. We are a charitable organisation with a worldwide membership of more than 50,000, working together to advance physics education, research and application.

We engage with policymakers and the general public to develop awareness and understanding of the value of physics and, through IOP Publishing, we are world leaders in professional scientific communications.

In September 2013, we launched our first fundraising campaign. Our campaign, Opportunity Physics, offers you the chance to support the work that we do.

Michael Bishop | Eurek Alert!

Further reports about: CTBTO IMS IOP Physics evidence gases phenomena simulated technologies waves

More articles from Physics and Astronomy:

nachricht First direct observation and measurement of ultra-fast moving vortices in superconductors
20.07.2017 | The Hebrew University of Jerusalem

nachricht Manipulating Electron Spins Without Loss of Information
19.07.2017 | Universität Basel

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

Im Focus: On the way to a biological alternative

A bacterial enzyme enables reactions that open up alternatives to key industrial chemical processes

The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....

Im Focus: The 1 trillion tonne iceberg

Larsen C Ice Shelf rift finally breaks through

A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...

Im Focus: Laser-cooled ions contribute to better understanding of friction

Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision

Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

Leipzig HTP-Forum discusses "hydrothermal processes" as a key technology for a biobased economy

12.07.2017 | Event News

 
Latest News

Researchers create new technique for manipulating polarization of terahertz radiation

20.07.2017 | Information Technology

High-tech sensing illuminates concrete stress testing

20.07.2017 | Materials Sciences

First direct observation and measurement of ultra-fast moving vortices in superconductors

20.07.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>