CNT-Based D2 Ion Source for Improved Neutron and Photon Generator

The Domestic Nuclear Detection Office (DNDO) requires non-intrusive radiation detection equipment to identify special nuclear materials (SNM). Preferred neutron sources for the detection of SNM should have narrow pulse width, low source neutron energy, high yield and be based on non-radioactive materials. Applied Nanotech, Inc. (ANI) proposes to develop a novel field ionization technology to produce the deuterium ion (D+) current for a neutron source, enabling fast switching, high repetition rate and high yields. Carbon nanotubes (CNT) possess two unique characteristics suited to this application; they have inherent hydrogen storage capacity and can be used as electron sources for e-beam applications including field emission and field ionization. Phase I will include a proof of concept demonstration of neutron generation capability. The CNT ion source will enhance the performance of a field emission design for a compact high flux neutron source previously developed by the Lawrence Berkeley National Laboratory. The anticipated higher performance relative to existing generators will create dual use market opportunities in commercial, DOD, and homeland security applications. Although this program will focus on developing a neutron source, alternative configurations will yield a photon generator that will also be useful for DNDO applications.