• Neutron detector development for microsatellites

      Bodnarik, Julia G.; Hamara, Dave; Groza, Michael; Stowe, Ashley C.; Burger, Arnold; Stassun, Keivan G.; Matei, Liviu; Egner, Joanna C.; Harris, Walter M.; Buliga, Vladimir; et al. (SPIE-INT SOC OPTICAL ENGINEERING, 2017-08-29)
      We present a preliminary design for a novel neutron detection system that is compact, lightweight, and low power consuming, utilizing the CubeSat platform making it suitable for space-based applications. This is made possible using the scintillating crystal lithium indium diselenide ((LiInSe2)-Li-6), the first crystal to include Li-6 in the crystalline structure, and a silicon avalanche photodiode (Si-APD). The schematics of this instrument are presented as well as the response of the instrument to initial testing under alpha, gamma and neutron radiation. A principal aim of this work is to demonstrate the feasibility of such a neutron detection system within a CubeSat platform. The entire end-to-end system presented here is 10 cm x 10 cm x 15 cm, weighs 670 grams and requires 5 V direct current at 3 Watts.