Magnetic Smart Tags (MaST) for Arms Control and Treaty Verification

Technical Report · Thu Sep 01 00:00:00 EDT 2016

DOI:https://doi.org/10.2172/1562661· OSTI ID:1562661

Langlois, Eric D. ^[1]; Pillars, Jamin Ryan ^[1]; Monson, Todd C. ^[1]; Arrington, Christian Lew ^[1]; Finnegan, Patrick Sean ^[1]; St. John, Christopher R ^[1]; Smartt, Heidi A. ^[1]

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1. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

The ability to track nuclear material is a challenge for resiliency of complex systems, e.g., harsh environments. RF tags, frequently used in national security applications, cannot be used for technological, operational, or safety reasons. Magnetic Smart Tags (MaST) is a novel tag technology based on magnetoelastic sensing that circumvents these issues. This technology is enabled by a new, cost-effective, batch manufacturing electrochemical deposition (ECD) process. This new advancement in fabrication enables multi-frequency tags capable of providing millions of possible codes for tag identification unlike existing theft deterrent tags that can convey only a single bit of information. Magnetostrictive 70% Co: 30% Fe was developed as the base alloy comprising the magnetoelastic resonator transduction element. Saturation magnetostriction, λ_S, has been externally measured by the Naval Research Laboratory to be as high as 78 ppm. Description of a novel MEMS variable capacitive test structure is described for future measurements of this parameter.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1562661
• Report Number(s): SAND-2016-9417; 647861
• Country of Publication: United States
• Language: English