Symposium on International Safeguards: Linking Strategy, Implementation and People - IAEA CN-220

Session

Noble Gas Measurements in Support of Nuclear Safeguards Implementation: E-Posters

24e GAS

23 Oct 2014, 11:50

M Building

187. All-Optical Atom Trap Trace Analysis – Potential Use of 85Kr in Safeguards Activities

Markus Kohler (University of Hamburg / Centre for Science and Peace Research)

23/10/2014, 11:50

poster

Sensitive measurement techniques for the detection of anthropogenic tracers demand measurement resolutions down to single atoms, as it has been demonstrated by the first atom trap trace analysis experiments. However, technical limitations had lowered the sample throughput to about 200 per year per machine. We have developed an all-optical apparatus which allows higher sample throughput and...

186. Automated Sampling and Extraction of Krypton from Small Air Samples for Kr-85 Measurement Using Atom Trap Trace Analysis

Simon Hebel (University of Hamburg)

23/10/2014, 11:50

poster

Atom-Trap-Trace-Analysis (ATTA) provides the capability of measuring the Krypton-85 concentration in microlitre amounts of krypton extracted from air samples of about 1 litre. This sample size is sufficiently small to allow for a range of applications, including onsite spot sampling and continuous sampling over periods of several hours. All samples can be easily handled and transported to an...

374. Radioactive Emissions from Fission-Based Medical Isotope Production and Their Effect on Global Nuclear Explosion Detection

Paul Saey (IAEA)

23/10/2014, 11:50

poster

The use of medical isotopes, such as Tc-99m, is widespread with over 30 million procedures being performed every year, but the fission-based production of isotopes used for medical procedures causes emissions into the environment. This paper will show that gaseous radioactive isotopes of xenon, such as Xe-133, are released in high quantities, because they have a high fission cross section...

373. SAUNA- Equipment for Low Level Measurement of Radioactive Xenon

Helena Berglund (SaunaSystems)

23/10/2014, 11:50

poster

Today, more than 25 SAUNA Systems are installed around the world, operated by national and international organisations. The activity measurement of the four xenon isotopes, 133Xe, 131mXe, 133mXe, and 135Xe is performed using the very sensitive beta gamma coincidence technique allowing high sensitivity also for the meta-stable states resulting in MDC:s of 0.3, 0.3, 0.3 and 0.7 mBq/m3...

376. Source Location of Noble Gas Plumes

Dr Gerhard Wotawa (Zentralanstalt fuer Meteorologie und Geodynamik)

23/10/2014, 11:50

poster

In radionuclide monitoring, one of the most significant challenges from a verification or surveillance perspective is the source location problem. Modern monitoring/surveillance systems employ meteorological source reconstruction - for example, the Fukushima accident, CRL emissions analysis and even radon risk mapping. These studies usually take weeks to months to conduct, involving...

382. The International Monitoring System's noble gas network

Matthias Auer (CTBTO - IMS)

23/10/2014, 11:50

poster

The International Monitoring System (IMS) is a unique global network for surveillance of the Comprehensive Nuclear-Test-Ban Treaty. A major component of the IMS is the radionuclide monitoring network since, among all IMS technologies, it can provide the most unequivocal evidence for a nuclear explosion. The radionuclide monitoring component is unprecedented in its combination of global...