TY - JOUR T1 - The Use of Modal Testing within Nuclear Weapon Dismantlement Verification AU - Helen White, Philip Daborn, Paula Hayden, Philip Ind PY - 2014 T2 - Science & Global Security SP - 135 EP - 159 VL - 22 IS - 2 N2 - The technical verification of a possible future nuclear arms control agreement is a complex challenge for technology developers. The focus of this article is on the use of modal testing techniques as a method for maintaining a chain of custody over containerized treaty accountable items (TAI) and monitoring equipment. Modal testing is a specialized form of resonant vibration analysis often used for the purpose of structural identification, condition monitoring, and damage detection. From a chain of custody perspective, it was postulated that a modal vibration signature might be used to identify a particular treaty accountable container or container/object system, or provide evidence of tampering. This article considers the advantages and disadvantages of modal testing as a potential chain of custody tool. Experimental results are discussed relating to deployment, tamper indication, unique identification and data analysis methodology. UR - http://scienceandglobalsecurity.org/archive/sgs22white.pdf 0