Study of radiation effects in electronics of a hexapod robotic platform

Abstract

Gamma ray and neutron measurements are important at nuclear facilities. To enable remote sensing, robotic platforms are used to carry the radiation detectors. In a radiation environment, robots will be exposed to high doses which limits the platform’s operational time. Electronic components are affected the most and must be shielded. The tradeoff between shielding and capabilities of the robot can be made to achieve specific tasks during a required time period. The PhantomX hexapod was studied as a platform for the use of a CZT detector and a video camera in neutron and gamma fluxes. The stochastic radiation transport code FLUKA was used to calculate damage rates in electronic components of the system. The compact packaging of these components and the shielding design were determined to reduce radiation damage under dose conditions while keeping the optimal payload. Results of the computational study are discussed.Gamma ray and neutron measurements are important at nuclear facilities. To enable remote sensing, robotic platforms are used to carry the radiation detectors. In a radiation environment, robots will be exposed to high doses which limits the platform’s operational time. Electronic components are affected the most and must be shielded. The tradeoff between shielding and capabilities of the robot can be made to achieve specific tasks during a required time period. The PhantomX hexapod was studied as a platform for the use of a CZT detector and a video camera in neutron and gamma fluxes. The stochastic radiation transport code FLUKA was used to calculate damage rates in electronic components of the system. The compact packaging of these components and the shielding design were determined to reduce radiation damage under dose conditions while keeping the optimal payload. Results of the computational study are discussed.