Hydroacoustic Signals Originating from Marine Volcanic Activity at Kadovar Island, Papua New Guinea, Recorded by the Comprehensive Nuclear-Test-Ban Treaty International Monitoring System

Domestic-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...

Seismological 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...

PREPARATORY COMMISSION FOR THE COMPREHENSIVE NUCLEAR-TEST-BAN TREATY ORGANIZATION (CTBTO) PROVISIONAL TECHNICAL SECRETARIAT INTERNATIONAL DATA CENTRE SCIENTIFIC METHODS AND DATA FUSION SECTION SEISMIC, HYDROACOUSTIC AND INFRASOUND METHODS UNIT Assessment of Hydroacoustic Processing in the CTBT Release One Monitoring Software

Machine 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...

Clustering 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...