19 July 2016 Front-end readout ASIC for charged particle counting with the RADEM instrument on the ESA JUICE mission
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Abstract
The detector readout for the Radiation-hard Electron Monitor (RADEM) aboard the JUpiter ICy moons Explorer (JUICE) uses a custom-made application-specific integrated circuit (ASIC, model: IDE3466) for the charge signal readout from silicon radiation sensors. RADEM measures the total ionizing dose and dose rate for protons (5 MeV to 250 MeV), electrons (0.3 MeV to 40 MeV) and ions. RADEM has in total three chips of the same design: one chip for the proton and ion detector, one for the electron detector, and one for the directional detector. The ASIC has 36 chargesensitive pre-amplifiers (CSA), 36 counters of 22-bits each, and one analogue output for multiplexing the pulse heights from all channels. The counters count pulses from charged particles in the silicon sensors depending on the charge magnitude and the coincidence trigger pattern from the 36 channels. We have designed the ASIC in 0.35-μm CMOS process and an ASIC wafer lot has been manufactured at AMS. This article presents the ASIC design specifications and design validation results. The preliminary results from tests with bare chips indicate that the design meets the technical requirements.
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Timo A. Stein, Timo A. Stein, Philip Påhlsson, Philip Påhlsson, Dirk Meier, Dirk Meier, Amir Hasanbegovic, Amir Hasanbegovic, Hans Kristian Otnes Berge, Hans Kristian Otnes Berge, Mehmet Akif Altan, Mehmet Akif Altan, Jörg Ackermann, Jörg Ackermann, Bahram Najafiuchevler, Bahram Najafiuchevler, Suleyman Azman, Suleyman Azman, Jahanzad Talebi, Jahanzad Talebi, Alf Olsen, Alf Olsen, Codin Gheorghe, Codin Gheorghe, David Steenari, David Steenari, Petter Øya, Petter Øya, Tor Magnus Johansen, Tor Magnus Johansen, Gunnar Maehlum, Gunnar Maehlum, } "Front-end readout ASIC for charged particle counting with the RADEM instrument on the ESA JUICE mission", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 990546 (19 July 2016); doi: 10.1117/12.2231901; https://doi.org/10.1117/12.2231901
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