Swept frequency acoustic interferometry technique for chemical weapons verification and monitoring

Conference · Wed Mar 01 04:00:00 EST 1995

OSTI ID:71607

Sinha, D N; Anthony, B W; Lizon, D C

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., 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
• Country of Publication: United States
• Language: English

Related Subjects

35 ARMS CONTROL
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
ARMS CONTROL
COMPLIANCE
INTERFEROMETRY
NONDESTRUCTIVE ANALYSIS
NONDESTRUCTIVE TESTING
ORDNANCE
VERIFICATION