R. Ghanbari, K.M. Tolk, W.S. Charlton,
"Exploration of Ion-Exchanged Glass for Seals Applications,"
Proceedings of the INMM 52nd Annual Meeting
, Palm Desert, CA, July 17-21, 2011.
As the nuclear industry grows around the globe, it brings with
it a need for more safeguards and proliferation resistant
technologies. Tags and seals are an area where innovation has been
relatively stagnant for the past fifteen years.
Seals are used to maintain the integrity of monitoring enclosures,
containers, or perhaps a point of entry. A gap analysis has been
completed for passive and active seals currently being used by the
IAEA. Several shortcomings of various seals were identified as
areas where improvements could be made. In addition, technologies
not previously applied to the areas of tags and seals were
evaluated for potential use in these applications. These "new"
technologies must meet the existing functional requirements and
also fill the voids found in current devices. Several of these
"new" technologies were selected for further evaluation of
implementation feasibility. A promising material to be used in the
next generation of seals is stressed glass due to its relatively
inexpensive cost, high strength, and potential use in a variety of
applications. Furthermore, using ion exchange, complex shapes of
glass can be chemically stressed for specific applications.
This process is being considered to be used in conjunction with
already existing technologies such as reflective particles. These
particles can be contained in adhesive between two pieces of glass,
or in the glass matrix if they are added during the fabrication
process. This allows for the glass to be cut into the correct shape
and then undergo the ion-exchange process. This process increases
the strength of the glass and gives it unique fracture
characteristics when subjected to a point load. The final product
will have both identification and authentication features difficult
for an adversary to replicate or defeat. The feasibility of
combining these two technologies into an inexpensive and secure
seal technology will be demonstrated with a proof of concept
Associated Project(s):Exploration of Ion-Exchanged Glass for Seals Applications