منابع مشابه
International treaties. Comprehensive test ban: the long road.
Watching the waves IMS also has a smaller network of sensors to listen for explosions carried out underwater, just above the ocean surface, or below the ocean bottom. Sound travels very efficiently in water: Kiyoshi Suyehiro of the Institute for Research on Earth Evolution in Kanagawa, Japan, says a 20-kilogram test charge of TNT was detected 16,000 kilometers away. As a result, IMS has just 11...
متن کاملDomestic-international Linkages: India and the Comprehensive Test Ban Treaty
Dinshaw Mistry is a doctoral candidate in Political Science at the University of Illinois, Urbana-Champaign, and is currently in residence at the Brookings Institution, Washington, D.C. He has recently published articles on the Indian space program (Pacific Affairs) and the missile nonproliferation regime (Contemporary Security Policy). DOMESTIC-INTERNATIONAL LINKAGES: INDIA AND THE COMPREHENSI...
متن کاملMachine learning for radioxenon event classification for the Comprehensive Nuclear-Test-Ban Treaty.
A method of weapon detection for the Comprehensive nuclear-Test-Ban-Treaty (CTBT) consists of monitoring the amount of radioxenon in the atmosphere by measuring and sampling the activity concentration of (131m)Xe, (133)Xe, (133m)Xe, and (135)Xe by radionuclide monitoring. Several explosion samples were simulated based on real data since the measured data of this type is quite rare. These data s...
متن کاملClustering Based One-Class Classification for Compliance Verification of the Comprehensive Nuclear-Test-Ban Treaty
Monitoring the levels of radioxenon isotopes in the atmosphere has been proposed as a means of verifying the Comprehensive Nuclear-Test-Ban Treaty (CTBT). This translates into a classification problem, whereby the measured concentrations either belong to an explosion class or a background class. Instances drawn from the explosions class are extremely rare, if not non-existent. Therefore, the re...
متن کاملSeismological Methods of Monitoring Compliance with the Comprehensive Nuclear-Test-Ban Treaty
Seismology provides the key technology for monitoring the occurrence of underground nuclear explosions. A new International Monitoring System (IMS) which is being established under the provisions of the Comprehensive Nuclear-Test-Ban Treaty has begun its work in conjunction with a new International Data Centre in Vienna, and this work is likely to continue to develop even though prospects for e...
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ژورنال
عنوان ژورنال: Nature
سال: 1990
ISSN: 0028-0836,1476-4687
DOI: 10.1038/348279a0