P044-0019
Radiation tolerance of the the low-cost PNI RM3100 magnetometer for a Europa lander mission

Friday, 11 December 2020
Poster
Leonardo Regoli, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, Mark B. Moldwin, University of Michigan Ann Arbor, Department of Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, Connor Raines, University of Michigan, Department of Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, Tom Nordheim, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Cameron Miller, University of Michigan, Nuclear Engineering & Radiological Sciences, Ann Arbor, MI, United States, Martin Carts, NASA Goddard Space Flight Center, Radiation Effects & Analysis Group, Greenbelt, United States and Sara Pozzi, University of Michigan, Nuclear Engineering & Radiological Sciences, Ann Arbor, United States
Abstract:
The results of two radiation test campaigns on a low-cost commercial off-the-shelf magnetometer are presented. The test setup and the total ionization dose (TID) levels studied were designed to meet the requirements of a mission to land on Europa. Based on the Europa Lander Science Definition Team report, instruments inside an aluminum vault at the surface of Europa would need to withstand TID of up to 300 krad(SI). In order to evaluate the performance of the PNI RM3100 magnetometer, nine separate sensors were irradiated at two different facilities during two separate campaigns and under different configurations, including passive and active tests. Of the nine sensors, seven survived the TID of 300 krad(SI) while the other two sensors started presenting failures after reaching 150 krad(SI). Post-irradiation tests showed that eight of the nine sensors continued to work without appreciable degradation after stopping exposure, while one sensor stopped working altogether.
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