Decisions and Trade-Offs in the Design of a Mass Spectrometer for Jupiter's Icy Moons
| Autor: | Peter Wurz, Michael Gerber, Stefan Brungger, Stefan Meyer, Saverio Braccini, Andreas Nentwig, Daniele Piazza, Marek Tulej, Mathias Lüthi, Mario Gruber, Martina Föhn, Davide Lasi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Nuts and bolts
010308 nuclear & particles physics Computer science business.industry Physics::Instrumentation and Detectors 530 Physics Controller (computing) 520 Astronomy Sample (statistics) Icy moon 620 Engineering 01 natural sciences Ion source Jupiter Software 0103 physical sciences Systems engineering Electronics business 010303 astronomy & astrophysics |
| DOI: | 10.7892/boris.147155 |
| Popis: | This paper describes the Neutral gas and Ion Mass spectrometer (NIM) onboard ESA's JUpiter ICy moon Explorer (JUICE). Instead of detailing the nuts and bolts of the design, we recount it in terms of ‘given’, architectural, and design decisions. ‘Given’ decisions are relative to elements of the instrument defined at the outset of the project, which bound the solution space to be explored by the development team. These decisions comprise the definition of the instrument concept (time-of-flight), sample ionization, MCP detector, ion optics technology, radiation shielding, and allocation of electronics' functions. Architectural and design decisions regard other elements of the instrument defined during the preliminary and detailed design phases, after trade-offs accounting for both technical and programmatic factors. These decisions regard the instrument's ion source, mechanism, FPGA, emitters, PCB interconnect, detector, materials, circuitry of the emission controller and high-voltage pulser, and software. Lessons learned are discussed throughout, including decisions that, ex-post, should have been made differently. This recollection ends with the first mass spectrum acquired with the flight model. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|