Swept frequency acoustic interferometry technique for chemical weapons verification and monitoring
Nondestructive evaluation (NDE) techniques are important for rapid on-site verification and monitoring of chemical munitions, such as artillery shells and bulk containers. Present NDE techniques provide only limited characterizations of such munitions. This paper describes the development of a novel noninvasive technique, swept-frequency acoustic interferometry (SFAI), that significantly enhances the capability of munitions characterizations. The SFAI technique allows very accurate and simultaneous determination of sound velocity and attenuation of chemical agents over a large frequency range inside artillery shells, in addition to determining agent density. The frequency-dependent sound velocity and attenuation can, in principle, provide molecular relaxation properties of the chemical agent. The same instrument also enables a direct fill-level measurement in bulk containers. Industrial and other applications of this general-purpose technique are also discussed.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- Defense Nuclear Agency, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 71607
- Report Number(s):
- LA-UR-95-610; CONF-950163-4; ON: DE95007854
- Resource Relation:
- Conference: 3. international on-site analysis conference, Houston, TX (United States), 22-25 Jan 1995; Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
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