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Optimization of CHIMS
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Space Technology.
2018 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The CHopper (Comet Hopper) was a proposal for a NASA mission to visit comet 46P/Wirtanen. A time of flight ion and neutral mass spectrometer (CHIMS) was developed especially for the proposed mission and was to be mounted on the Chopper spacecraft. CHIMS was to establish the composition and isotopic ratios of the comet's volatile components. Since NASA selected the InSight mission, CHIMS had been proposed for other missions: LIFE, Life Investigation For Enceladus, a low-cost sample return mission to Enceladus and Castalia, an ESA medium-sized mission to explore the Main Comet Belt. CHIMS was in need of fine tuning; the scientific demand of having accurate detection efficiency, combined with high performance make it necessary to rigorously test and calibrate instruments to operate at their optimum level. The goal of this work is to improve the performance of the ion source by applying simulation and optimization techniques to the CHIMS lab prototype. The results show a positive outcome, and propose a number of future modifications that should help obtain the desired results for any future missions.

Place, publisher, year, edition, pages
2018. , p. 70
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-71861OAI: oai:DiVA.org:ltu-71861DiVA, id: diva2:1267497
External cooperation
Space Research & Planetary Sciences (WP) - University of Bern
Subject / course
Student thesis, at least 30 credits
Educational program
Space Engineering, master's level (120 credits)
Supervisors
Examiners
Available from: 2018-12-05 Created: 2018-12-03 Last updated: 2018-12-05Bibliographically approved

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