Google+ The Neutron Detector Using Radiation Integrated Circuits | Educating the Next Generation of Leaders in Nuclear Security Sciences
Skip navigation


M.D. Shah, C.M. Marianno, and S.P. Khatri, "The Neutron Detector Using Radiation Integrated Circuits," Poster. 2016 IEEE Symposium on Radiation Measurements and Applications, Berkeley, CA, 22-26 May 2016.


With the advancement in semiconductor technology, circuits on the integrated circuit have become increasingly sensitive to radiation damage and therefore, fail to function properly. Researchers at Texas A&M University have converted this disadvantage into an advantage for radiation detection applications, by designing the RIC (Radiation Integrated Circuit). This chip is designed with 2 types of sectors: radiation-sensitive areas (RSAs) and radiation-hardened areas (RHAs). This paper addresses the use of the RIC for neutron detection. The RSAs are sensitive to charged-particle interactions, and so for neutron detection, a medium (neutron-reactive material) is required to generate charged-particles that are detected by the RSAs. To assess the performance of neutron-reactive coatings on the RICs to detect neutrons, MCNPX-based simulations were performed. The analysis focused on the optimal yield of charged-particles at the interface between the RIC and the neutron-reactive coating. Natural boron (19.9%  10B), enriched boron (96%  10B), boron carbide - B4C (~75%10B) and lithium fluoride - LiF (~24%  6Li), were studied using MCNPX-based simulations. It was observed the highest yield of charged-particles was measured for the enriched boron, followed by, boron carbide, lithium fluoride and natural boron. The optimal configuration for the RIC-based neutron detector was observed for a 3-µm thick enriched boron coating. Analyses on these materials will be presented in detail.

Associated Project(s):

  • Radiation Detection Using Integrated Circuits

  • View Sitemap