Thermopile detector radiation hard readout

Abstract

The NASA Jupiter Europa Orbiter (JEO) conceptual payload contains a thermal instrument with six different spectral bands ranging from 8µm to 100μm. The thermal instrument is based on multiple linear arrays of thermopile detectors that are intrinsically radiation hard; however, the thermopile CMOS readout needs to be hardened to tolerate the radiation sources of the JEO mission. Black Forest Engineering is developing a thermopile readout to tolerate the JEO mission radiation sources. The thermal instrument and ROIC process/design techniques are described to meet the JEO mission requirements.

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“…These include electronics needed for many instruments and other spacecraft systems (Cressler and Mantooth, 2017). Rad-hard instrument development includes cameras (Centurelli et al, 2018;Janesick et al, 2014;McEwen et al, 2012McEwen et al, , 2014Michaelis et al, 2017;Turtle et al, 2016), thermal imagers (Dartois et al, 2017;Gaalema et al, 2010;Hiesinger et al, 2010), laser altimeters (Althaus et al, 2016), and neutral mass spectrometers (Tulej et al, 2016). Instruments such as magnetometers (Raymond et al, 2015) and faraday cups (Westlake et al, 2016) are inherently radiation tolerant.…”