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Submillimeter Wave Instrument SWI/JUICE

English title Submillimeter Wave Instrument SWI/JUICE
Applicant Murk Axel
Number 165744
Funding scheme Project funding (Div. I-III)
Research institution Institut für angewandte Physik Universität Bern
Institution of higher education University of Berne - BE
Main discipline Astronomy, Astrophysics and Space Sciences
Start/End 01.07.2016 - 31.12.2018
Approved amount 169'592.00
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All Disciplines (4)

Discipline
Astronomy, Astrophysics and Space Sciences
Technical Physics
Electrical Engineering
Climatology. Atmospherical Chemistry, Aeronomy

Keywords (8)

radiometry; remote sensing; antenna measurements; THz spectroscopy; quasi-optics; Jupiter; Icy Moons; blackbody calibration target

Lay Summary (German)

Lead
Die Europäische Weltraumbehörde ESA plant im Jahr 2022 den Start der Raumsonde JUICE für die Erforschung des Jupiters und der galileischen Monden. Das Jupiter-System ist dabei aus mehreren Gründen von besonderem Interesse. Zum einen wurden auf den Eismonden unterirdische Ozeane nachgewiesen, die möglicherweise die Entwicklung von ausserirdischen Lebensformen ermöglichen könnten. Zum anderen ist der Gasriese Jupiter wichtig für das Verständnis der Planetenentstehung in unserem Sonnensystem und von Exoplaneten in anderen Systemen.
Lay summary
Das Submillimeter Wave Instrument SWI ist eines von elf Instrumenten der Jupitermission JUICE. Es besteht aus einem beweglichen 30cm Teleskop, empfindliche THz Empfängern sowie hochauflösenden Spektrometern. Durch die Beobachtung der Emissionslinien verschiedener atmosphärischer Spurengase lässt sich die chemische  Zusammensetzung und das Isotopenverhältniss in der Atmosphäre von Jupiter und seinen Monden untersuchen. Zusätzliche lassen sich daraus das Temperaturprofil und die Windgeschwindigkeit auf Jupiter bestimmen. Beobachtungen der Eismonde bei unterschiedlichen Frequenzen und Empfängerpolarisationen erlauben zusätzliche  Rückschlüsse auf die Materialeigenschaften an ihrer Oberfläche.

Das Institut für Angewandte Physik ist für das optische Design und die radiometrische Kalibration von SWI verantwortlich. Dies beinhaltet die Optimierung  des Spiegelteleskopes, die Charakterisierung seiner  Abbildungseingenschaften mittels Simulationen und Antennenmessungen, sowie die Entwicklung der Kalibrationseinheit für SWI.  Die von unseren internationalen Projektpartnern entwickelten THz Empfänger für SWI werden an unserem Institut zusammengesetzt und kalibriert. Die Ergebnisse dieser Arbeit fliessen direkt in die Entwicklung von SWI und die Planung der wissenschaftlichen Beobachtungen ein.
Direct link to Lay Summary Last update: 11.07.2016

Responsible applicant and co-applicants

Employees

Publications

Publication
Optical Design and Analysis of the Submillimeter-Wave Instrument on JUICE
Kotiranta Mikko, Jacob Karl, Kim Hyunjoo, Hartogh Paul, Murk Axel (2018), Optical Design and Analysis of the Submillimeter-Wave Instrument on JUICE, in IEEE Transactions on Terahertz Science and Technology, 8(6), 588-595.
Radiometric Characterization of a Water-Based Conical Blackbody Calibration Target for Millimetre-Wave Remote Sensing
Jacob K., Schroder A., Murk A., Von Werra L., Reinhard F., Raisin P. (2018), Radiometric Characterization of a Water-Based Conical Blackbody Calibration Target for Millimetre-Wave Remote Sensing, in 2018 IEEE 15th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (Mic, Cambridge, MA, USAIEEE, Cambridge, MA, USA.
Design, Manufacturing, and Characterization of Conical Blackbody Targets With Optimized Profile
Jacob Karl, Schröder Arne, Murk Axel (2018), Design, Manufacturing, and Characterization of Conical Blackbody Targets With Optimized Profile, in IEEE Transactions on Terahertz Science and Technology, 8(1), 76-84.
Electromagnetic Design of Calibration Targets for MetOp-SG Microwave Instruments
Schröder Arne, Murk Axel, Wylde Richard, Jacob Karl, Pike Kevin, Winser Mike, Pujades Marc Bergada, Kangas Ville (2017), Electromagnetic Design of Calibration Targets for MetOp-SG Microwave Instruments, in IEEE Transactions on Terahertz Science and Technology, 7(6), 677-685.
Electromagnetic Design and Performance of a Conical Microwave Blackbody Target for Radiometer Calibration
Houtz Derek A., Emery William, Gu Dazhen, Jacob Karl, Murk Axel, Walker David K., Wylde Richard J. (2017), Electromagnetic Design and Performance of a Conical Microwave Blackbody Target for Radiometer Calibration, in IEEE Transactions on Geoscience and Remote Sensing, 55(8), 4586-4596.

Collaboration

Group / person Country
Types of collaboration
Space Research & Planetary Sciences Division, University of Bern Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
National Institute of Standards and Technology (NIST) United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
Max Planck Institute for Solar System Research Germany (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
15th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad2018) Talk given at a conference Radiometric Characterization of a Water-Based Conical Blackbody Calibration Target for Millimetre-Wave Remote Sensing 27.03.2018 Cambridge, Massachusetts, United States of America Jacob Karl Friedrich;
29th IEEE International Symposium on Space Terahertz Technology Talk given at a conference Optical Design of the Submillimeter Wave Instrument on JUICE 26.03.2018 Pasadena, CA, United States of America Murk Axel;
41st International Conference on Infrared, Millimeter, and Terahertz Waves Poster Design of the Calibration Target for SWI on JUICE 26.09.2016 Copenhagen, Denmark Murk Axel; Jacob Karl Friedrich;


Communication with the public

Communication Title Media Place Year
New media (web, blogs, podcasts, news feeds etc.) Building the Next Generation of Calibration Units with 3D Printing Formlabs Interview International 2017

Awards

Title Year
Best Poster Award for "Design of the Calibration Target for SWI on JUICE", International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Copenhagen, Denmark 2016

Associated projects

Number Title Start Funding scheme
153313 Submillimeter Wave Instrument SWI/JUICE 01.07.2014 Project funding (Div. I-III)

Abstract

JUpiter ICy moons Explorer (JUICE) is an ESA mission to Jupiter and its Galilean moons Ganymede, Callisto and Europa. Its scientific goals are to investigate Jupiter and its Galilean satellites as planetary bodies and potential habitats for life. The Submillimeter Wave Instrument (SWI) on JUICE is a passive radiometer/spectrometer tunable between 530-625GHz. It will study the atmospheric compositions and dynamics, as well as the dielectric and thermal properties of the icy surfaces. The IAP is part of the SWI instrument development and science team. This follow-up proposal concerns the development and characterization of the SWI optics, calibration system and receivers, as well a science study for the planned surface observations.
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