The U.S. Department of Homeland Security intends to award a sole-source contract to Bubble Technology Industries, Inc. in Chalk River, Ontario, Canada, for research and development to design, fabricate, and test Capacitive Frisch Grids for Thallium Bromide detector modules. This six-month project builds on prior work to develop a transformative nuclear terrorism detection material, culminating in deliverables to support a transition to a prototype development program. The government's stated intent is a non-competitive award, but it will consider clear evidence from other capable sources on why competition would be advantageous. Responses to this notice must be submitted by the specified deadline to the provided email contacts.